Journal of Android iOS Development and Testing ISSN: 3139-2237 (Online)

Authors:-Esther Grace M , S. Sobitha Ahila , P. Hari Kumar

Abstract:-An intelligent cardiac auscultation is the process of monitoring the heart beat signals variations of a patient monitoring system for monitoring the patient’s health condition automatically through sensors based connected networks in Internet of Things (IoT). It detects the critical condition of a patient by processing sensors data and instantly provides push notification to doctors. There is no process of monitoring of a particular cardiac disease which can lead to loss of life due to improper checkups and not following the lifestyle proposed by the doctor. In our proposed system, coronary heart disease monitoring based on wireless sensors are used to monitor cardiac patient for 24/7 without any human intervention using piezoelectric sensors which is used to measure artery thickness by the flow of blood vessels and extract the waveform. The waveform is classified into normal and abnormal waveform. This abnormal waveform is sent to mobile application where it receives the data and plots the signal curves in real-time. The mobile application acts as the display device and has the capability to upload data to a cloud platform for further analysis and intimation is sent to the cardiologist. The authorized Cardiologist can get access to the cloud platform to get the dataset and results via any peripheral devices which are equipped with specific software and diagnose the results.

Keywords: - Piezoelectric sensors, IoT, Mobile application

Authors:-Nimishamba, Pooja

Abstract:-The hotel management system provides convenience for the customers for ordering food through the proposed application. It overcomes the disadvantages of the traditional queuing system. Therefore, this system enhances the speed and standardization of taking the order from the customer. It provides a better communication platform. The user’s details are noted electronically. The mobile application for hotel management system set up menu online and the customers easily places the order with a simple click and also by scanning the QR code of the table. Also the application provides with a food menu through which customers can easily track the orders, maintain database and improve food delivery service. This system allows the user to select the desired food items from the displayed menu. The user orders the food items by using the menu which is in turn managed by the admin. An id and password is provided for each user through which their uniqueness is maintained throughout the process. Therefore, this application provides a more secured ordering procedure.

Keywords: QR code, Database, Hotel Management.

Author: V. S. Swarnalekha

Abstract: Analyze the basic characteristics of Wi-Fi-based property between base stations and vehicles in urban settings. The amount between a vehicle returning into and going out of vary of a base station is commonly marred by intermittent periods of terribly poor property. A scheme, known as SWIMMING, is planned to support seamless and economical Wi Fi-based web access for moving vehicles. An unique methodology known as locationbased delivery (LBD) is planned, that associates SMS and GPS, is planned, and additional, a practical system to realize precise location chase is developed. LBD chiefly applies the subsequent two planned techniques: Location prediction and dynamic threshold. Location prediction is achieved by victimisation the present location, moving speed, and bearing of the target to predict its next location. Once the gap among the anticipated location and also the actual location exceeds an exact threshold, the target broadcasts a brief message to the hunter to update its prevailing location. The dynamic threshold maintains the placement chase efficiency and variety of short messages on the support of the moving speed of the target.

Keywords: GPS Tracking, WINS technologies, Vehicle tracking, Sensors

Authors:-Poornima N^, Jamuna

Abstract:- To develop an application for providing peer-to-peer process sharing on Wi-Fi network for Smart Phones

 In the proposed system, a peer-to-peer model permits efficient file downloading using two or more Android smart phones over a low-cost transport. The employment of P2P protocols and applications in the platform of the ensemble mobile environment is becoming a promising solution which permits a wide number of users to share the process of downloading the contents (data, audio, video, etc…). Small segments are desirable when multiple clients are involved, as they allow for increased parallelism of downloads.

Keywords: - Peer-to-Peer (P2P), Process sharing, Downloading, Software as a Service

Authors: Manu Bhardwaj, Gaurav Pal, Ishu Malhotra, Ragini Karwayun

Abstract: NewsChef is an android application built for the purpose of delivering news content that is gathered from more than one source and thus opposing all the conventional news systems. Other existing news applications allow user to process content that is constructed by their respective sources and thus restricting the user in terms of the variety of the news data. NewsChef is developed keeping in mind, the variations in the interests of users. It will empower user with the freedom of opting to read content from more than 50 top news sources with the likes of ESPN, BBC News, The Telegraph, Al Jazeera, Business Insider, The Hindu, MTV News and many more. NewsChef also provides with the feature of switching between Trending news, which displays news articles from multiple sources and news from a particular source. NewsChef will also allow it’s users to download a particular news article and later read it offline, a feature with a crucial role to play when there is limited internet data. Plus, the user will also be able to share any news article on major social networking apps like Snapchat, Facebook, Twitter, WhatsApp, etc. and through mailing networks like Gmail, Outlook and Yahoo Mail, and with the help of text messaging too.NewsChef also dominates over other news applications in the context of storage space consumption, as it works with relatively low space, as the news content is fetched from the server side on the runtime. In terms of internet usage, it will use only few MBs for delivering the best possible content to the user.

Keywords: NewsChef, Android application, Software applications

Authors: Anshika Srivastava, Anjali Baranwal, Bindu Rani

Abstract: Restaurants are one of the favorite premises .An online food ordering is a integrated process in fast food Restaurants to offer choice of food from menu, cooked and served or packaged hot to satisfy customer to immediately make orders on their ownselves. Customers can also call the restaurant to pack in advance or to deliver the food item but sometimes restaurants run out of certain items. The existing system lacks the feature to use Remote GPS tracker such that restaurant managers are auto updated about the location of the customer before reaching the restaurant. We propose a complete system to easily manage online menu where items update as per the availability of food and prices. The Customer views the products, register and place the order. The system administrator adds and manages user accounts and the Manager manages product and orders. The Kitchen meal deliverable deals with pending deliveries .The proposed system is developed using Android platform which is open source software and built in data connection modules. It also decreases labour rates to replace mobile phones to book order and table unlike employees who come to take order and payments .In advent of food consumption problems like obesity, overeating etc. ,he proposed system will show food items with nutrition based searches showing ingredients of the food items.

Keywords: Food ordering system, GPS, PDA, smart phone/tablet, SMS, Trackpads

Authors: Harshita Bhardwaj, Jagriti Agrawal, Karishma Chauhan

Abstract: The goal of this paper is to design a notification system using Android application to connect it to the educational web site of university. It achieve high and quick organize between instructor and students, save time, effort by connecting Android Application to educational database of the college using android platform. It provides a wide range of information about student's lecture wise and overall attendance through different designs. It also includes sending notification, attendance.

Keywords: Android application, Attendance, Notification system

Authors: Neha Kumari, Lydia Lukose, Lopamudra Mohanty

Abstract: This paper is prepared with a keen focus on the requirement of blood in emergency situation. Our project blood bank locator is an android application for mobile which bridges the gap between the person who needs blood and is in search of a donor. Our application involves the functionality of user which creates an account in the app and then login by using the same user id and password. The registration asks for the information such as first name, last name, gender, email and password. After login the page with two options is activated: new donor and donor search. There is a GPS application integrated with the application which helps the user to track down the location. In the search donor, there application asks for blood group and the GPS enters the location. The result search shows the donors living in that area only that are registered. In the new donor, the application requires name, mobile, blood type, and locality. The information is added to the database system. The database used in our application is Firebase which is cloud real time database. The information storage in firebase is not in table like format. The search result provides information such as name, phone no. and blood group. The mobile application always updates the location which makes it easy for the user the track the donor. The goal of our application is to find the suitable donor as soon as possible for the receiver.

Keywords: GPS application, Firebase, Blood bank locator

Authors: Akshata Jadhav, Chanchal Ghume, Pragati Kamble, Ketana Ainapure, Shreyasha Patil, A. A. Todkar

Abstract: Now a day’s people are much closed to smart phones. Everyone has mobile application for any task to simplify their work. So, we can implement mobile application for restaurant which is help to the restaurant as well as customer to do their work. "Our leading purpose segment will be people from 18-50 years, who are students, entry level executives, pilgrims among others who are looking for dime-store, hygienic and safe reconciliation”. This system also overcomes the outdated way of manual food ordering through waiter. As per customer’s perspective this process is onerous. In this system we can also manage the whole restaurant activities like ordering food, information of employees, management of ingredients, home delivery, and table pre-booking etc. and store it into database. So, overall it will help to improve the restaurant quality and saving time of customers, waiters, and manager.

Keywords: Futuristic Dinning, Smartphone

Author: Suresh Kumar, Nandhini

Abstract: Native Android development has undergone significant transformation with the introduction of Kotlin as the officially preferred programming language by Google. Kotlin addresses many limitations of Java by offering concise syntax, null safety, functional programming support, and improved interoperability. This paper presents a detailed study on native Android development using Kotlin, emphasizing industry-accepted best practices for building scalable, maintainable, and high-performance mobile applications. Key aspects discussed include project architecture, UI development, asynchronous programming, memory management, testing strategies, security considerations, and performance optimization. Tables and conceptual figures are used to illustrate design patterns and development workflows. The study aims to serve as a practical and academic reference for students, researchers, and developers adopting Kotlin for native Android application development.

Keywords:  Android development, Kotlin, MVVM, Mobile applications, Best practices

Author: R. Mahendran, T. Deepa

Abstract: Mobile applications are increasingly expected to function reliably regardless of network availability. In many real-world scenarios, such as rural connectivity, transportation systems, and field data collection, continuous internet access cannot be guaranteed. Offline-first mobile application design addresses this challenge by prioritizing local data storage and synchronization mechanisms over real-time network dependency. This paper presents a comprehensive study of offline-first mobile app design using local databases. It discusses architectural principles, data persistence techniques, synchronization strategies, conflict resolution mechanisms, and platform-specific implementations for Android and iOS. Through tables and conceptual two-dimensional figures, the paper highlights best practices for building resilient, user-friendly, and scalable offline-capable mobile applications.

Keywords:  Offline-first design, Local databases, Mobile applications, Data synchronization, Reliability

Author: Spurthy Talakala , M. Hari Krishna

Abstract: Generally in critical case patients are supposed to be monitored continuously for their Heart Rate as well as temperature. In the earlier methods, the doctors need to be present physically or in several cases SMS will be sent using GSM. In the earlier case the history of the patient cannot be displayed, only current data is displayed. In the current paper, we are using a novel idea for continuous monitoring patient's health conditions. The health care scheme is focus on the measurement and Monitoring various biological parameters of patient's body like heart rate, oxygen saturation level in blood and temperature using a web server and android application, where doctor can continuously monitor the patient's condition on his smart phone using an Android application and also the patient history will be stored on the server and doctor can access the information whenever needed from anywhere and need not physically present. Using several sensors to measure different vital signs, the person is wirelessly monitored within his own home. Impact sensor has been used to detect falls. The device detects if person is medically distressed and sends an alarm to a receiver unit that is connected to a computer. This sets off an alarm allowing help to be provided to the user.

Keywords:  Heart rate, Android, Server

Authors: S. C. Sakure, K. R. Khandait, P. V. Jasud

Abstract: The rapidly increasing power of personal mobile devices is providing much richer contents and social interactions to users on the move. This trend however is throttled by the limited battery lifetime of mobile devices and unstable wireless connectivity, making the highest possible quality of service experienced by mobile users not feasible. The recent cloud computing technology, with its rich resources to compensate for the limitations of mobile devices and connections, can potentially provide an ideal platform to support the desired mobile services. Tough challenges arise on how to effectively exploit cloud resources to facilitate mobile services, especially those with stringent interaction delay requirements. In this paper, we propose the design of a Cloud-based, novel Mobile social TV system.

Keywords: Social TV, Cloud Computing, PaaS (Platform-as-a-Service)

Authors: P. Sivakumar, R. S. Sandhya Devi, B. Vinod

Abstract: Now a day’s Security is a major concern in case of Embedded Systems since almost all the systems are to be connected with the Internet. Embedded system serves as one of crucial components needed for various applications and services in pervasive computing environment. Security problems related to embedded systems directly influence credibility of these applications and services. In order to effectively eliminate weaknesses in current embedded systems and strongly enhance safety practices of these systems. With the everincreasing presence of Linux implementations in embedded devices, there is a strong demand for defining the security requirements and augmenting, enhancing, and hardening the operating environment. In most of the systems this issue is addressed with the help of proprietary software and operating systems which ultimately increase the cost of product. Since the proprietary software is having its own advantage cost incurred by that is much when compared to open source. Hence in the embedded device development the very good alternative is the Linux operating system which is royalty free and the source code is freely available which comes under the GNU public license. The security of Linux is already proven and is currently used in millions of devices. Hence the embedded devices with the Linux operating system is Low cost, highly secured and can be designed in a short span of time. Thus it reduces the cost of the product. In this paper the Linux kernel is configured for the ARM core based System on Chip and an authentication system is implemented. The host development environment is the Ubuntu Linux. The kernel image is cross compiled using the GCC compiler.

Keywords: Linux, Secure System, Kernel, File System, Linux Security Module, Target Image Builder

Author: S. Praveen Kumar , K. Anitha

Abstract: The increasing complexity of mobile applications has intensified the need for robust architectural patterns that promote scalability, maintainability, and testability. Among various architectural approaches, Model–View–ViewModel (MVVM) and Clean Architecture have emerged as widely adopted paradigms in modern mobile application development. MVVM emphasizes separation of concerns between user interface and business logic, while Clean Architecture enforces a layered structure that isolates core application logic from external dependencies. This paper presents a comprehensive study of MVVM and Clean Architecture in mobile applications, highlighting their principles, components, advantages, and implementation strategies. Through conceptual models, tables, and architectural figures, the paper demonstrates how combining MVVM with Clean Architecture leads to resilient and future-proof mobile applications suitable for both Android and iOS platforms.

Keywords:   MVVM, Clean Architecture, Mobile applications, Software architecture, Scalability

Authors: AyushiBisht, Brahmika Thakur, KanchanRautela, Kirti Singh

Abstract: The goal of this paper is to design a notification system using Android application to connect it to the educational web site of the university. It achieve high and quick organize between instructor and students, save time, effort by connecting Android application to the educational database of the college using latest technologies. It provides a wide range of information about education, courses, and all about college students that help the instructor to select to whom he/she will send notifications. It also includes sending notifications, attendance.

Keywords: Notification, Notify Me, Android application, FCM

Author: Sagar Tanwar , Vishal Rai , Sundeep Raj

Abstract: The work proposed in this paper added features for placing the voice and video calls using IP phones (soft phones) hence increasing the mobility of the users. The model is successful in carrying out voice and video calls on PC’s connected with both wired LAN and wireless LAN using Soft Phones and android supported hand held connected with the wireless network. Every user is provided with his own extension number, the communication devices can make voice and video call, voice mail, Instant messaging and Interactive voice response, that can be used to connect within organization. We had used Ozeki Server for this project; Ozeki is an open source software platform which uses PBX (Private Branch Exchange) as the kernel to build unified communications system. It can choose the combination of different communication components to achieve customized solutions. This project implemented the functions of VOIP (Voice over Internet Protocol) like voice call, video call, chat and voice mail.

Keywords:  IP phones, Voice/Video call, PBX (Private Branch Exchange)

Author: Gaurav Pandey , Mayank Tiwari , Himanshu Shukla , Ragini Karwayun

Abstract: Communication is very important between the people in all areas, because through communication we share knowledge, exchange ideas, chat with friends etc. Communication plays a vital role in any situation to full fill our needs/tasks. At present, communication depends on the network provided by internet for which user has to pay a large amount of money. In this project we have tried to develop a chat application using Bluetooth, through which we can connect two or more mobile devices and establish chat at free of cost. Bluetooth provides the short-range of two-way communication without any support of the network. Bluetooth is integrated into Android (which is a Smartphone platform) as a means of mobile communication. Nowadays Android becomes the latest technology in the Smartphone’s due to its the open sourcing, thus we designed a chatting application based on android Bluetooth which establishes a connection between smart phones using Bluetooth and then messages are exchanged between them.

Keywords:  Component; Android; Bluetooth; Communication; Chat.

Authors: Aishwarya R, Akshath R Hegde, Ashwini N, Mohammed Thavaf A R, Anitha C

Abstract: Gas leakage is a phenomenon which can possibly dispense significant harms to lives and property. Detection of gas leakage and informing the concerned individuals is frequently the first and the most imperative stride in keeping away from any casualties. Already accessible products in the market neglect to convey the notice to clients who are situated elsewhere, and, offer next to zero flexibility. The best answer for this is to use the capacity of the idea called "Internet of Things", which means whereby remote sensors, cloud storage, and convenient terminal gadgets can be utilized to alarm the client with respect to a gas leakage. This paper introduces such a method, wherein the client is kept mindful of the leakage status through an Android application and cellular network based SMS. The proposed solution is highly flexible and cost effective.

Keywords: Gas leakage; Internet of Things; Android application; Raspberry Pi; MQ - 6 sensor, flexibility

Author: R. Suresh Kumar, Ananya Mukherjee

Abstract: The rapid expansion of mobile applications has reshaped how individuals communicate, learn, shop, and access essential services. However, this digital growth has not always been inclusive. A significant portion of the population, including people with visual, auditory, motor, and cognitive impairments, continues to face barriers while using mobile applications. Accessibility in mobile app UI/UX design is therefore not a peripheral concern but a fundamental requirement for equitable digital participation. This paper explores core UI/UX design principles for accessibility in mobile applications, emphasizing practical design strategies, standards compliance, and user-centered methodologies. Key accessibility challenges are identified, followed by design principles such as perceivability, operability, understandability, and robustness. The paper also discusses assistive technologies, inclusive interaction patterns, and evaluation techniques. Tables and two-dimensional figures are included to summarize guidelines and illustrate accessible interface layouts. The study concludes that accessibility-driven UI/UX design not only benefits users with disabilities but also enhances usability for all users, leading to improved engagement, satisfaction, and market reach.

Keywords: Mobile applications, UI/UX design, accessibility, inclusive design, usability, assistive technology

Author: V. Arun Prakash, M. Kavitha

Abstract: The rapid evolution of iOS application development has led to the adoption of modern frameworks that emphasize declarative programming, improved performance, and enhanced developer productivity. SwiftUI, introduced by Apple, represents a paradigm shift from traditional UIKit-based development by enabling developers to build user interfaces using a declarative syntax tightly integrated with the Swift programming language. This paper presents a comprehensive study of iOS app development using SwiftUI architecture, focusing on design principles, architectural patterns, state management, performance considerations, and testing strategies. A structured comparison with traditional UIKit approaches is provided using tables and conceptual figures. The study highlights best practices for developing scalable, maintainable, and responsive iOS applications using SwiftUI, making it suitable for both academic research and industrial adoption.

Keywords:  iOS development, SwiftUI, Declarative UI, MVVM, Mobile applications

Author: Chaithanya B V , Sanket N Shettar

Abstract: The implementation of smart antenna techniques in advanced wireless systems like 5G Mobile Communications, is expected to have a significant impact on the efficient utilization of the spectrum, the minimization of the cost of establishing new wireless networks, the optimization of service quality, and realization of the transparent operation across multi technology wireless networks. Nevertheless, its success relies on two considerations that have been often overlooked when investigating smart antenna technologies: first, the smart antennas features need to be considered early in the design phase of future systems (top-down compatibility); second, a realistic performance evaluation of smart antenna technique needs to be performed according to the critical parameters associated with future systems requirements (bottom-up feasibility). In this paper an overview of the different types of smart antenna techniques are discussed with an insight to switched beam array and adaptive antenna array elaborated with necessary equations.

Keywords:  Smart antennas; LMSE; MMSE

Author: Priyanka Taake , InsheraZain Shaikh , Priyanka Singh , Aisha Peerzada4, Suvarna Pawar

Abstract: Every night people put their phones on charging which makes them unused at night. Which means it is mostly the time when phones are unused. Not only at night but while charging, smart phones are typically unused. Here we are proposing load balancing architecture where we will perform distributed computing using smartphones only when they are charging.

Keywords:  Induction Motor, Triac, AVR Microcontroller, Bluetooth module.  

Authors: Susmitha. R, V. Vanitha

Abstract: Android is a one of the mobile operating system developed by Google, based on the Linux kernel and designed primarily for touch screen mobile devices such as smart phones and tablets. There is 90-95% people use android devices. Android perform various activities related to formal and informal life. Likewise in IT industries, small scale as well as large scale, organizations, educations etc. The proposed plan†Android user activity monitoring and security“is the android application which spy on any targeted user and retrieve its call logs, messages. This application not only retrieves call logs, and messages history, it also provide emergency call and message service for the android users. The Retrieved information such as missed call, incoming call, outgoing call, call duration, incoming SMS, outgoing SMS along with its date and time will be tracked and updated to the application this application will be monitored by the administrator. And Emergency application that people activate on mobile phones before you might get into an emergency situation. Then the people have to only press this application present on the home screen. Soon the device will send an emergency call or message with current location to a friends, family, police, and doctors and send the exact current position. This system will help to people who fall into a situation where instant communication of their situations becomes indispensable to be informed to certain authorized persons.

Keywords: Android, SMS history, Call log, Emergency call, Emergency message, Location tracking

Author: Vikram S. Kulkarni, Ananya Sen

Abstract: Automated testing is a critical component of modern mobile application development, ensuring functionality, reliability, and performance across diverse devices and operating systems. Appium, an open-source, cross-platform test automation framework, enables developers and testers to automate functional and regression testing for native, hybrid, and mobile web applications on Android and iOS platforms. This paper provides a comprehensive overview of automated mobile app testing using Appium, highlighting architecture, setup, testing strategies, cross-platform capabilities, and integration with Continuous Integration/Continuous Deployment (CI/CD) pipelines. The study includes tables and figures illustrating test workflows, device coverage strategies, and Appium architecture. Challenges, best practices, and performance considerations are discussed to guide developers and QA teams in implementing scalable, maintainable, and efficient automated testing for mobile applications.

Keywords:  Mobile testing, Appium, automated testing, cross-platform, CI/CD, mobile application quality