Custom Mobile App Feature Development -- 2

@pinkeegupta

Hi 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. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native and for web and backend on react js and node js, Python Django and php CodeIgniter mvc and Laravel. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@cloudwapptech

With an impressive 15+ years of collective team experience in mobile app development and a repertoire of over 1500 successfully delivered projects, CLOUDWAPP TECHNOLOGIES PVT LTD seems to be the perfect fit for your existing cross-platform mobile application. From crafting seamless user experiences to ensuring fast and reliable payment gateways – we have handled it all. We have solid expertise and can confidently handle tasks like creating local scheduled notifications across Android and iOS devices, implementing speech-to-text functionalities as well as enriching the app with text-to-speech capabilities using both AI and system voices. You specified your preference for Flutter, React Native or Native-Kotlin/Swift. Being skilled in all these toolchains, we can adapt to any of them as per your project needs and timeline requirements. Additionally, our proficiency in Firebase wiring, which includes key features like email/social authenetication & push notification setup, aligns perfectly with your project requirements. What sets CLOUDWAPP apart is our unwavering commitment to client satisfaction, fast turnaround time, and consistent follow-ups. We believe in not just delivering applications but engineering digital futures. So join hands with us today for this Custom Mobile App Feature Development project and let's build something exceptional together!

@abubakarrafi81

With my extensive experience in mobile app development, I assure you that I'm the best fit for your project. I have successfully built and maintained numerous cross-platform applications for both Android and iOS platforms using React Native and Flutter. I am adept at integrating third-party APIs, like the Firebase ones you mentioned, and ensuring smooth functionality. For your specific needs, I want to emphasize my impressive work in implementing reliable notifications, skillful voice-to-text conversion that encompasses voice-note capture as well as real-time commands. Additionally, my projects have incorporated text-to-speech with a variety of voice choices – partly why I excel in this area. I can also leverage embedded systems like Firebase to provide secure authentication systems required by the project. In terms of payments, I am well-versed in integrating Razorpay or any other payment gateway of your preference into mobile applications for both one-time purchases and renewable subscriptions. To ensure a seamless user experience, I prioritize testing on real hardware before submission to the stores to debug any issues that may arise on different devices.

@santoshkumars17

As a highly skilled Full Stack Web and Mobile App Developer, I have successfully built and deployed numerous projects that align closely with the features you're seeking for your cross-platform mobile app. Over my 5+ years in the industry, I've become an expert in mobile app development, payment gateway integration, and have specifically mastered React Native, making it the perfect toolchain for this project. Notably, I've worked extensively with Realtime features such as notifications and voice capture in my previous projects. I also possess comprehensive knowledge and experience integrating Firebase services like email / social auth and push notifications - which will be vital components of your mobile app. Additionally, my proficiency in API integration and database management pairs well with your need for Razorpay-based payments. Rest assured that you will receive not just a timely delivery but also a robust application that has undergone thorough testing on actual hardware devices – ensuring its compatibility on real-world scenarios - before submission to app stores. Overall, my commitment to clean code, optimized solutions, and prompt communication presents me as a seasoned professional able to deliver the exact features you're looking for in your mobile app. Let's seal the deal with 100% dedication to bringing these noteworthy features to fruition!

@technologiesit

As an experienced Full Stack Developer and AI Solutions Expert, I’m confident in my ability to help bring your desired features to life for your mobile app. Over the past 8 years, I’ve successfully tackled numerous projects similar to yours, allowing me to accumulate a robust skill set that aligns perfectly with your needs. With my expertise in Android, Flutter, and Mobile App Development as well as experience shipping features on both Android and iOS platforms, I can provide you with high-quality, cross-platform solution you seek. Moreover, my deep understanding of front-end technologies such as React Native ensures I'll deliver a consistent user experience across devices. In conclusion, I offer you not only the technical capabilities and reliable delivery that you seek but also a long-term commitment to your project's success. Allow me the opportunity to discuss your complete product spec with sensitivity to IP regarding your NDA. It would be a pleasure to work closely with you towards bringing these new enhancements not just functional but also profitable for your business together.

@MuhammadAsad108

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram Feature Planning ⟶⟶ Firebase & Voice Integration ⟶⟶ Notifications & Payments ⟶⟶ Device Testing ⟶⟶ QA & Bug Fixing ⟶⟶ Store Deployment Key Highlights ✔ Cross-platform Flutter development for Android & iOS from a single codebase. ✔ Reliable local scheduled & repeating notifications with background support. ✔ Speech-to-Text for voice notes and real-time voice commands. ✔ Text-to-Speech with both native system voices and AI-powered voice options. ✔ Firebase Authentication (Email & Social Login) and Push Notifications. ✔ Razorpay integration for one-time payments and recurring subscriptions. ✔ Real-device testing, clean architecture, CI/CD readiness, and documented source code. Best Regards, Asad Mobile App Developer | Flutter | Firebase | Voice AI | Payment Integration

@tyronet2

Feature extensions like this fail in one specific place: notifications don't fire reliably on Android because someone used a timer instead of AlarmManager/WorkManager, or on iOS because they didn't know iOS silently drops repeating local notifications after 64 scheduled entries. Get that layer right first, the rest is standard. Stack: Flutter — Firebase, Razorpay, and voice plugins are all first-class; cross-platform ships without maintaining two codebases. Concrete picks: flutter_local_notifications with WorkManager (Android) + UNUserNotificationCenter (iOS), speech_to_text for voice notes, Picovoice Porcupine + streaming Whisper for real-time voice commands (hot-word activation without draining battery), flutter_tts for system + ElevenLabs REST for AI voices, Firebase Auth (email + Google + Apple), FCM for push, Razorpay Flutter SDK + Subscriptions API + webhook reconciliation on backend. Past shape: Flutter cross-platform at Poundit — Stripe subscription lifecycle with webhook reconciliation (same shape as Razorpay), FCM push, real-device testing on the low-end Android that always breaks first. 5 years shipping Flutter production.

@adityapandia32

As a seasoned developer specializing in creating clean and scalable Flutter applications with over [years of experience], I fully understand the importance of reliable schedule notifications across both Android and iOS platforms. My portfolio includes numerous apps that showcase the efficient use of notifications, voice features and payment flows- similar to what you require- ensuring that your project is in safe hands. Furthermore, I have an extensive expertise in integrating Firebase for email, social authentication and push notifications- intricately connected to your project's core requirements. I value quality, clear communication and long-term stability, hence, you can trust me with tasks as critical as thorough testing on real hardware before submission to app stores, which I consider a compulsory step for any project of mine. In addition to Flutter, I also have strong command over React Native and native Kotlin/Swift if needed. Overall, I believe my skillset, experience and commitment to excellence makes me the perfect fit for your mobile app feature development project. With all these competencies under my belt, I'm ready and excited to bring your desired features into production. Awaiting collaboration, Aditya

@ashinnd84

As a seasoned developer with a strong background in Android, iOS, and cross-platform mobile app development, I am confident in my ability to deliver the custom features you require swiftly and seamlessly. My team and I have successfully delivered over 100 complex projects spanning various industries, including e-commerce, enterprise, healthcare, and more. This not only speaks to our technical skills but also showcases our adaptability to different APIs and frameworks. I understand the importance of delivering a consistent user experience across multiple operating systems, and therefore, I prioritize thorough testing on real hardware rather than relying solely on simulators. In addition to being proficient in software development languages like Python, JavaScript, PHP and Swift/Kotlin for native app development. I've also mastered platforms such as Flutter and React Native for successful cross-platform app development projects. I leverage this deep technological expertise in machine learning (AI) which can be valuable in your project with respect to voice-to-text conversion (speech-to-text) and text-to-speech functionality (TTS) supplemented by AI-generated voices. Plus, with a knack for end-to-end service connectivity using Firebase wiring – email/social authentication plus push notifications – your app will be ready to provide an interconnected experience.

@nathanholmes

What stood out to me is that you're **extending an existing application**, so maintaining consistency with the current architecture is just as important as delivering new features. The biggest challenge is integrating notifications, voice capabilities, Firebase, and payments in a way that feels seamless across both Android and iOS while ensuring reliability on real devices. I'd begin by reviewing the existing codebase before implementing each feature in well-defined stages, covering scheduled notifications, speech-to-text, text-to-speech, Firebase authentication and messaging, Razorpay payments, and comprehensive testing on physical devices. This approach minimizes regressions, keeps the codebase maintainable, and ensures every feature is production-ready before release. I've worked on cross-platform applications involving API integrations, authentication, payment gateways, and real-time mobile features, with a strong focus on performance, scalability, and clean architecture. Happy to discuss the preferred toolchain or outline a phased implementation plan after reviewing the project specifications.

@KarthikTechCon

Hi! I’m Karthik. With 15+ years of experience building cross-platform mobile applications, secure payment gateways, and advanced native feature integrations, I can seamlessly extend your Android and iOS app with high reliability. Tech Stack & Architecture Framework: Flutter or React Native (fully optimized for single-codebase parity across Android and iOS). Local Notifications: flutter_local_notifications or react-native-push-notification with persistent background scheduling. Voice Capabilities: Speech-to-text integration for voice notes and real-time commands paired with Text-to-Speech (system voices and AI-generated audio options). Backend & Auth: Complete Firebase wiring (Email/Social Auth, Cloud Messaging / Push Notifications, and Firestore/Realtime Database). Payments: Razorpay SDK integration handling secure one-time purchases and automated renewable subscriptions. Project Plan & Timeline (7 Days) Days 1–2: Initialize toolchain, execute NDA/IP documents, and configure Firebase Auth and push notification services. Days 3–4: Implement robust local scheduled/repeating notifications and speech-to-text / text-to-speech pipelines. Days 5–6: Integrate Razorpay for one-time purchases and renewable subscriptions; conduct rigorous device testing on real hardware. Day 7: Final debugging, build packaging, and hand-over of source code with deployment README. Let's chat to get this started immediately!

@jadavlalit57

Hello, Your project aligns well with my experience in cross-platform mobile development. I can help extend your existing application while maintaining a consistent experience across Android and iOS. I can assist with: - Local scheduled and repeating notifications - Speech-to-text for voice notes and voice commands - Text-to-speech using both system voices and AI voice services - Firebase Authentication and Push Notifications - Razorpay integration for one-time payments and subscriptions - Testing, debugging, and optimization on real devices before store submission I am comfortable working under an NDA and IP assignment and can start after reviewing the project specification. Preferred toolchain: Flutter (or React Native if your project already uses it) Estimated timeline: 4–6 weeks (after reviewing the existing codebase) Estimated budget: $2,000 (final quote can be confirmed after reviewing the requirements) I believe in clear communication and regular progress updates throughout the project. I look forward to discussing the details and helping bring these features to production. Best regards, [Lalit jadav]

@mayankinnovative

The challenge here is making these features behave consistently across Android and iOS, especially where platform differences affect notifications, voice services, subscriptions, and background execution. The implementation needs to feel native on both platforms, not just functionally complete. I'd extend the existing application by tackling each feature in the order that reduces integration risk: first establishing reliable scheduled and repeating notifications, then implementing speech-to-text for both voice notes and command recognition, followed by text-to-speech with support for system voices and optional AI-generated voices. After that, I'd complete the Firebase setup for authentication and push notifications, integrate Razorpay for one-time purchases and renewable subscriptions, and finish with testing on physical devices to validate notification delivery, payment flows, voice accuracy, and platform-specific behavior before store submission. I prefer Flutter for maintaining a consistent codebase while still accessing native capabilities where needed, though I'm happy to align with your existing stack if the project is already underway. Once the NDA is signed and I review the specification, I can provide an accurate timeline and implementation plan. Before that, could you confirm which framework the current app is built with and whether Firebase is already partially configured?

@sonika1419

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.

@lokeshn30

Hello, I have extensive experience with Flutter and React Native development and can seamlessly add the required features to your existing app, including scheduled notifications, speech-to-text, text-to-speech, Firebase authentication & push notifications, Razorpay payments (one-time and subscriptions), and real-device testing for Android and iOS. I follow clean architecture, maintainable code practices, and can work under NDA with complete IP transfer. I'm ready to start immediately and ensure a smooth, production-ready release.

@syedzada421

I have more than 5 years of work experience in Mobile Application development and have hands-on experience in many terms like UI/UX designing, Figma Files, Firebase and Rest APIs integrations I will handle your project easily at a reasonable price, and I am available to start work from now on. Just share the details, and I will start working on it.

@Tarang78

Hi! I’m Tarang. I am genuinely interested in your project, "Custom Mobile App Feature Development." Furthermore, I have over 12 years of experience and a background in developing projects in mobile application technologies like React Native (Android & iOS). Furthermore, I’m currently online and ready to discuss your project and start immediately, and I can deliver high-quality work within your timeline. Please join the chat for discussion.

@rishi9343

With my extensive experience spanning over 8 years in mobile app development, I am confident in my ability to tackle and deliver the core tasks outlined in your project. My proficiency covers both iOS and Android platforms, which ensure a consistent experience across systems for your users. Having worked on similar projects before, I'm well-versed in incorporating local scheduled and repeating notifications that persist reliably, speech-to-text and text-to-speech functionalities, successful Firebase wiring, payments integration using Razorpay, as well as efficient testing on real hardware for bug detection. Apart from mobile development expertise, what sets me apart from other candidates is my full-stack development capability. I don't only build apps but I also excel at creating back-end services to optimize database operations and enhance the overall functionality of your application. This amalgamation of skills will be especially valuable in erecting a high-performing application that meets your user's demands. Not only do my skills align perfectly with the requirements of your project but my approach towards turning innovative ideas into actual applications is reliable and efficient. Together, let's turn this blueprint of yours into a robust mobile app that resonates effortlessly across operating systems; ensuring it fulfils its intended purpose seamlessly! Don't hesitate to get in touch; I'm ready to get started immediately. Let's make this happen!

@riyaazt

Hi there. This is an interesting project. One area I'd pay particularly close attention to is ensuring the local scheduled notifications work seamlessly across both Android and iOS, as inconsistencies here can impact user experience. I have experience developing similar features in apps like [App Name 1] and [App Name 2], where I successfully implemented notifications, payment flows, and voice functionalities. Thorough testing on real devices is crucial, and I prioritize that to catch any edge cases before launch. For the toolchain, I prefer Flutter for its cross-platform capabilities, which can expedite development and maintain a consistent user experience. What specific use cases do you envision for the voice functionalities? Looking forward to engaging. Even if we don't end up working together, you'll still walk away with valuable insights from our discussion. Regards, Riyaaz