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I need a lightweight SOS application for both Android and iOS that can be launched with one clear purpose: when a user presses the dedicated on-screen button, a deafening buzzer must sound at maximum volume to draw attention and at the same moment prompt the user to send help alerts. Core flow • The user presses the SOS button (the only trigger for now). • The app fires the loud buzzer instantly. • A screen appears letting the user pick one of four pre-written messages and one of three pre-saved locations. • The chosen combination is then dispatched to the user’s selected emergency contacts through the phone’s native sharing options (SMS, WhatsApp, etc., whichever is installed). Configuration inside the app • Settings page where the user manually stores the three fixed addresses (typed text, no map input). • Separate settings screen to edit the four preset messages. • Simple contacts selector so the user can add or remove recipients at any time. Key requirements • Works on current Android and iOS versions with identical behaviour. • Buzzer must override the device’s volume setting and keep sounding until the user stops it or the alert is fully sent. • All contact, address and message data remain strictly on the device—no external server needed. Deliverable A fully functional, store-ready mobile app package for both platforms, complete with commented source code and a short setup guide so I can rebuild or expand it later. If everything above is clear and feasible for you, let’s get started.
Proje No: 40086905
24 teklifler
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24 freelancer bu proje için ortalama ₹17.813 INR teklif veriyor

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹20.000 INR 7 gün içinde
6,5
6,5

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
₹35.000 INR 20 gün içinde
6,7
6,7

With nearly a decade of experience in the web and mobile development, I am Neha, steering an organization dedicated to transforming ideas into reality. Android and iOS development have been our core strengths since inception. Our services are not only cost-effective, but we firmly believe in accompanying after-delivery support, whereby ensuring your SOS buzzer app's maintenance and upgrading for a considerable period of time. Speaking more explicitly about my skills which include but aren't limited to Android, iOS, Java and Mobile App Development; these skills will lay a solid foundation for your SOS Buzzer app's journey. Over the years, I've gathered a vast experience which makes me proficient not just in terms of delivering quality work but also saving your device's battery through efficient code. Contributing to your SOS Buzzer app's functionality will be my strong suit. I realize the importance of a light-weighted design that not only delivers high performance irrespective of the platform - iOS or Android - but also respects user's choice in saving battery life through strictly on-device sharing rather than external servers et cetera. Moreover, I understand that the primary purpose is delivering fast and effective alerting functionality. I thoroughly comprehend how critical one second can be in such situations. In nutshell, what makes me the best fit for your requirement is my proven expertise with Android, iOS, and Mobile App Development complemented by a
₹15.000 INR 7 gün içinde
5,3
5,3

I have 6+ years of experience building lightweight, cross-platform mobile apps with reliable system-level behavior. I recommend Flutter to deliver identical behavior on Android and iOS with a single, clean codebase. I’ll implement an instant SOS flow: one-tap button, maximum-volume buzzer override, and alert selection. Users will be able to manage preset messages, fixed addresses, and emergency contacts entirely offline (no server). Alerts will be sent via native sharing options (SMS, WhatsApp, etc.), depending on what’s installed on the device. You’ll receive a store-ready app, well-commented source code, and a short setup guide for future expansion.
₹32.000 INR 25 gün içinde
4,3
4,3

Hello Client, My experience in Android app development includes designing user interfaces, integrating with backend services, and testing and debugging. I have worked on several successful Android projects in the past, and I am familiar with the latest best practices and technologies in the field. brief overview of some different domains where Android app development is used. Social Media: Android apps are used extensively in the social media space. Popular social media platforms like Facebook, Instagram, and Twitter all have Android apps that allow users to access their accounts and share content. E-Commerce: Android apps are also used in the e-commerce space, allowing businesses to offer mobile shopping experiences to their customers. Apps like Amazon, eBay, and Walmart allow users to browse products, make purchases, and track their orders on their Android devices. Finance: Android apps are used in the finance industry to offer banking, investing, and budgeting tools to users. Apps like Mint, Robinhood, and PayPal allow users to manage their money, invest in stocks, and make payments from their Android devices. Education: Android apps are used in the education space to provide learning resources and tools to students. Apps like Duolingo, Khan Academy, and Coursera offer educational content in a variety of subjects, and allow users to learn at their own pace on their Android devices. I am always available for your support. Thanks Sarika
₹51.000 INR 30 gün içinde
3,1
3,1

Hello, I’m Rahul Singh from Team Velora, and for the past 3 years we’ve been building reliable, cross-platform mobile apps with real-time alerts. We can develop your SOS app for Android and iOS with a single SOS button that triggers a maximum-volume buzzer, allows message + location selection, and sends alerts via native sharing. All data will remain on-device, and the final deliverable will include fully commented source code and store-ready builds. Let’s connect in private chat to finalize implementation details.
₹17.000 INR 5 gün içinde
3,0
3,0

Hello, I’m Dinesh Kumar With 14+ years of experience across multiple platforms, I’ve helped build numerous startups through dedication and hard work. I’m committed to delivering high quality work that ensures 100% client satisfaction. Your success is my priority, and I focus on building long term relationships based on trust and excellence. Expertise: Web & App Development – React.js, Node.js, JavaScript, PHP, MySQL, WordPress, Magento, CodeIgniter, Shopify, .NET, Flutter, FoxPro Strong knowledge of frameworks, software design, and development methodologies Proven ability to deliver custom, scalable, and reliable solutions for diverse industries I work with clients globally, providing end to end solutions that meet unique project needs while maintaining the highest quality standards.
₹7.000 INR 7 gün içinde
2,3
2,3

Hi, Being in the industry for more than 10 years, we have hands-on experience building lightweight, safety-focused mobile apps with precise control over device behavior on both Android and iOS. We can deliver an SOS app that triggers an instant high-volume buzzer, overrides system volume, and guides the user through selecting a preset message and location before sending alerts via native sharing options (SMS, WhatsApp, etc.). We’re comfortable implementing on-device-only storage for contacts, messages, and addresses, ensuring identical behavior across platforms and a clean, store-ready build with well-commented source code. Please initiate a chat so we can ask a few important questions and finalize platform choices and edge cases. Best regards, Ekakshnex Pvt Ltd
₹12.500 INR 7 gün içinde
1,7
1,7

Hello, I’ve gone through your project details carefully, and I must say it sounds really interesting. I’d love to bring my experience to make it a success. With over 10 years of hands-on experience in web, mobile, and software development, I’ve had the privilege of working with clients from around the world, delivering 500+ successful projects so far. My team and I are comfortable working with technologies like MEAN, MERN, Flutter, React Native, PHP, Laravel, Python, WordPress, Shopify, AI, Blockchain, CRM, CMS, and more. What truly drives me is solving complex challenges and transforming ideas into reliable, user-friendly products. I always aim for clear communication, transparency, and results that make clients feel confident they chose the right partner. You can review my portfolio here: https://www.freelancer.in/u/NareshJoshiTech I’d really appreciate the chance to discuss your project in detail and explore how we can create something great together. Looking forward to hearing from you. Warm regards, Naresh Joshi
₹7.000 INR 7 gün içinde
0,2
0,2

Hello, Hope you are doing well. I have experience of 6+ years of in Mobile Applications Development and I have previously made many applications with Interactive Designs and Functionalities. I have reviewed your requirement. I will definitely design & develop a fully responsive & user-friendly application. However, I would like to dig more into your requirements to develop a unique application as per your desires App development:- Olx App Taxi App Dating App. Educational App Multivendor App. Hotel and Restaurant Booking App. Doctors/ hospital management App. Please have a look at my portfolio link : https://www.freelancer.com/u/khushiArt Best Regards Khushbu
₹50.000 INR 20 gün içinde
0,0
0,0

All right, let's dive into pitching for your need of a fully functional SOS Buzzer App for Android and iOS platforms. With over a decade of professional experience in both Android and iOS development, I possess the skills to ensure that your requirements are met with efficiency and precision. My proficiency in Kotlin and Swift make me more than capable of delivering a store-ready mobile app package to fit your specifications. What sets me apart is my ability to adapt and utilize complementary technologies. I am also a seasoned Firebase developer which means I can help you create an infrastructure that handles all the emergency events in real-time, using NoSQL databases, SMS services, storage, and other required services. Moreover, my extensive knowledge and experience in cross-platform development such as React Native and Flutter ensure that you have one team who can create two versions of the app - minimizing costs and saving time. Being adept at full-stack development creates an added advantage for me since it assures you complete end-to-end control over your product. Lastly, as an AI app developer, I can't stress enough how important efficient algorithms are in alerting situations. My AI integration skills would come into play by ensuring your app uses every possible feature on modern devices to attract necessary attention. So let's get started on building a lightweight yet powerful solution for your project! Contact me now so we can transform your SOS app idea into a reality!
₹12.500 INR 5 gün içinde
0,0
0,0

Drawing on my 6+ years of experience as a Full Stack Developer, I am confident that I am the ideal fit for your SOS Buzzer App project. My skillset extends across the creation of store-ready mobile app packages for both Android and iOS platforms, offering robust solutions with excellent user experiences. In addition to these core competencies, my skills in Frontend and Backend development can contribute significantly to the intuitive function and fluid interface of your SOS Buzzer App. As evident in my profile, I have relevant experience with technologies like HTML5, CSS3, Javascript et al which have significant roles in Frontend development for mobile platforms. Lastly, as you've mentioned that you would appreciate a short setup guide to rebuild or expand your app later, I assure you excellent documentation practices. These will accompany the fully-commented source code package deliverable at project completion guaranteeing easy maintenance and future-proofing capabilities should you decide to add more features or introduce customizations.
₹11.500 INR 9 gün içinde
0,0
0,0

I can design and develop a lightweight SOS mobile app for both Android and iOS that follows your flow exactly and runs entirely on-device with no external servers. The app will launch into a single, clear SOS action. When the user presses the button, a maximum-volume buzzer will sound immediately and continue until stopped or the alert process completes. At the same time, the user will be prompted to select one of four preset messages and one of three saved locations, which will then be sent to chosen emergency contacts using the phone’s native sharing options (SMS, WhatsApp, etc., based on what’s installed). Included features: Identical behavior on Android and iOS Editable settings screens for preset messages and saved addresses (text-based) Simple contact selection and management Buzzer handling that overrides system volume limits Fully offline operation with all data stored locally Deliverables: Store-ready Android and iOS builds Clean, commented source code Short setup and handover guide for future updates or expansion I can build this using a cross-platform framework (such as Flutter or React Native) or native stacks if preferred, ensuring reliability, performance, and store compliance. I’m ready to start as soon as you confirm.
₹12.500 INR 10 gün içinde
0,0
0,0

Hello, We’re Resonite Technologies, a mobile app development team with proven experience delivering lightweight, reliable Android & iOS applications with identical cross-platform behavior. Your SOS Buzzer app requirement is very clear, feasible, and well within our expertise. We understand the core flow and urgency of this app and will ensure: • Instant SOS trigger with a single on-screen button • Deafening buzzer that overrides system volume and continues until stopped or alert is sent • Clear follow-up screen to select 1 of 4 preset messages and 1 of 3 saved locations • Dispatch via native sharing options (SMS, WhatsApp, etc., based on installed apps) • Simple, fast UX designed for high-stress situations In-app configuration • Settings to manage 3 fixed addresses (manual text input) • Separate editor for 4 preset SOS messages • Easy contact selector to add/remove emergency recipients • All data stored locally on-device — no backend or external servers Technical approach • Cross-platform development (Flutter or React Native) for consistent Android/iOS behavior • Native-level audio handling to ensure volume override • Clean, commented source code for future expansion Deliverables • Store-ready Android & iOS builds • Full source code • Short setup & rebuild guide We focus on clarity, reliability, and user safety—especially for apps with real-world impact like this. If you’re ready to proceed, we can start immediately. Best regards, Resonite Technologies
₹27.000 INR 7 gün içinde
0,0
0,0

With my expertise in iOS and mobile app development, I am confident that I can deliver a state-of-the-art SOS Buzzer App for both Android and iOS platforms that aligns perfectly with your project vision. My coding skills, complemented by my five-year experience in the industry, have honed me to become an ace at building scalable and efficient applications. The crux of your project is the need for a lightweight SOS app that packs a punch. When it comes to leveraging technology to create user-centric solutions, I'm passionate about it! Compatibility issues? Overriding volume settings? Manual address configuration? Say no more! These challenges hold no fear for me as I have dealt with similar concerns in previous projects and adeptly found solutions. Furthermore, what sets me apart as a freelancer is not just my technical finesse, but also my commitment to delivering excellence within agreed timelines. Your project's success will be instantly reflected in the form of a store-ready mobile app package – complete with commented source code and detailed setup guide – which would be ready for expansion or rebuilding should the need arise. So, why wait? Let's collaborate, combine our strengths and create something impactful together!
₹7.000 INR 7 gün içinde
0,0
0,0

The complete application will be delivered within 10 days. I will develop a lightweight, store-ready SOS mobile app for Android and iOS with identical behavior on both platforms. The app will feature a one-tap SOS button that triggers a maximum-volume buzzer and allows the user to select a preset message and saved location, which will be sent to emergency contacts via native sharing options (SMS, WhatsApp, etc.). All data will remain securely stored on the device, with editable messages, locations, and contacts, along with clean, well-documented source code and a setup guide for future updates.
₹7.000 INR 7 gün içinde
0,0
0,0

This is a very basic app which i can make in very affordable price and in very few time, i have made similar apps in my personal projects as well as college practical experiments.
₹2.000 INR 2 gün içinde
0,0
0,0

Hello, I’m Ankur Hardiya, a friendly freelance developer with an awesome team. I read your requirement for Website and I’m super excited to develop and design a fantastic Android and iOS application for you. With my experience in Flutter and native languages, I can build high-performing apps for both Android and iOS platforms. Whether you need an eCommerce app, a custom business app, or anything in between, I can deliver: * Native app experience for optimal performance * User-friendly interface and intuitive navigation * Seamless integration with backend systems * Ongoing maintenance and updates I’m passionate about creating mobile apps that make a difference, and I’m eager to discuss your project in detail. Thanks a bunch for thinking of me for your project. I’m all set to turn your ideas into something amazing in today’s competitive world. Regards, Ankur Hardiya
₹20.000 INR 6 gün içinde
0,0
0,0

I am a mobile app developer specializing in cross-platform applications. I have reviewed your requirements for a lightweight SOS app and fully understand the critical nature of the one-touch trigger and volume override functionality. I will deliver a high-performance, store-ready application for both iOS and Android using Flutter, ensuring identical behavior on both platforms while keeping all user data strictly private and stored on-device. My Technical Approach: Instant Alarm: I will implement a native audio bridge to ensure the buzzer sounds at 100% volume, bypassing "Silent Mode" and "Do Not Disturb" on both OS versions. Zero-Server Privacy: I will use SharedPreferences/Hive for local-only storage of your 3 addresses, 4 messages, and emergency contacts. No external database will be used, ensuring 100% privacy. Native Sharing: I will integrate the native Share Sheet so users can instantly dispatch alerts via SMS, WhatsApp, or any installed messaging app with a single tap. Intuitive UX: A minimalist, high-contrast UI designed for high-stress situations (large SOS button and clear selection grid).
₹7.000 INR 10 gün içinde
0,0
0,0

Kulgam, India
Ara 23, 2025 tarihinden bu yana üye
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