You will get an IoT Bluetooth React Native app | Android | iOS | Hybrid | AI
Top Rated
Top Rated
Project details
Are you launching a connected hardware product, a medical IoT device, or a smart wellness ecosystem?
Building a hardware product is only half the battle, to drive long-term user habits, your physical device needs a seamless, bulletproof mobile companion application.
As a Top Rated Plus React Native specialist, I transform complex Figma layout workspaces into high-performance, native-grade applications for both iOS and Android from a single codebase. I focus heavily on writing optimized, low-latency JavaScript/TypeScript bridges for Bluetooth Low Energy (BLE) communication, ensuring data streams effortlessly from your physical hardware sensors directly into responsive React Native visual components.
**Specialized React Native Modules Included Out-of-the-Box:**
• BLE Hardware Synchronization
• Smart Compartment Scheduling
• Data-Driven Health Insights
• Community & Group Curation
• Smart Reminders UI
Building a hardware product is only half the battle, to drive long-term user habits, your physical device needs a seamless, bulletproof mobile companion application.
As a Top Rated Plus React Native specialist, I transform complex Figma layout workspaces into high-performance, native-grade applications for both iOS and Android from a single codebase. I focus heavily on writing optimized, low-latency JavaScript/TypeScript bridges for Bluetooth Low Energy (BLE) communication, ensuring data streams effortlessly from your physical hardware sensors directly into responsive React Native visual components.
**Specialized React Native Modules Included Out-of-the-Box:**
• BLE Hardware Synchronization
• Smart Compartment Scheduling
• Data-Driven Health Insights
• Community & Group Curation
• Smart Reminders UI
Platform
Mobile WebApp Type
Hybrid AppDevelopment Technology
Flutter, React Native, SwiftApp Purpose
Chat, Finance, Education, Health & Fitness, IoT, Maps & Navigation, Medical, Music, News, ProductivityExpertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$950
|
Standard
$2,200
|
Advanced
$5,500
|
|---|---|---|---|
| Delivery Time | 7 days | 18 days | 45 days |
Number of Revisions | 3 | 5 | Unlimited |
Number of Mobile Operating Systems | 1 | 2 | 4 |
App Store Upload | - | - | - |
App Icon Design | - | - | - |
Splash Screen | - | - | - |
Ad Network Integration | - | - | - |
Source Code | - | - | - |
26 reviews
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KC
Kamal C.
May 4, 2026
30 minute consultation
We hired Sanjeev for a quick 30-minute consultation as a fresh perspective on our mobile app idea. He provided valuable insights and practical recommendations. Highly recommended if you’re looking for expert guidance on mobile app development.
ME
Murat E.
Feb 24, 2026
Full Stack Reactjs, Nextjs, React Native developer
Ravin very experience doing good work.
NC
Nick C.
Jun 24, 2025
React Native Pro Needed to Build a High-Quality Read-It-Later App (iOS, Android, Web)
LR
Liam R.
Jun 5, 2025
React Native Developer for Health and Fitness Mobile app for both iOS and Android
It was a great experience working with Sanjeev. They were highly skilled in React Native and played a key role in maintaining our health and fitness mobile app for both iOS and Android. From implementing clean UI components to integrating few APIs and ensuring smooth performance across devices, their attention to detail and communication were impressive throughout the project.
They were responsive, met deadlines, and were open to feedback, making collaboration smooth and efficient. Highly recommended for any mobile app development project—would definitely work with them again!
They were responsive, met deadlines, and were open to feedback, making collaboration smooth and efficient. Highly recommended for any mobile app development project—would definitely work with them again!
SM
Steven M.
Apr 20, 2023
Mobile app for iOS and Android + Web app
Great developer highly recommended... Thank you
About Sanjeev
Mobile App Developer | Flutter App Developer | React Native | AI Apps
100%
Job Success
Bilaspur, India - 10:09 am local time
🏆 𝗧𝗢𝗣-𝗥𝗔𝗧𝗘𝗗 Plus Mobile app 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, Flutter App 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, React Native Developer
🗓 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗷𝗼𝗯, 𝗮𝗻𝗱 𝗜 𝘄𝗶𝗹𝗹 𝘀𝗰𝗵𝗲𝗱𝘂𝗹𝗲 𝗮 𝗰𝗼𝗻𝘃𝗲𝗻𝗶𝗲𝗻𝘁 𝘁𝗶𝗺𝗲 𝗳𝗼𝗿 𝘆𝗼𝘂𝗿 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻
🔥 𝗥𝗮𝗻𝗸𝗶𝗻𝗴 𝗶𝗻 𝘁𝗵𝗲 𝘁𝗼𝗽 3% 𝗼𝗳 Mobile app development 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸
📅 𝗙𝗲𝗲𝗹 𝗳𝗿𝗲𝗲 𝘁𝗼 𝗵𝗶𝘁 "𝐈𝐍𝐕𝐈𝐓𝐄" 𝗕𝘂𝘁𝘁𝗼𝗻. 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 𝐭𝐨 𝐒𝐭𝐚𝐫𝐭 𝐈𝐦𝐦𝐞𝐝𝐢𝐚𝐭𝐞𝐥𝐲
✅ 100% Job Success score on Upwork for Mobile App Development
✅ 12+ years of industry experience in Mobile App Development, Flutter and React Native App development
✅ Completed 3000+ hours on Upwork and still counting.
✅ Completed 35+ Mobile App projects with nice feedback and review on Upwork.
✅ Commitment to high-quality, innovative solutions in Mobile App Development
✅ Cost-effective service offerings for React Native Developer and iOS app development
✅ Fluent in English, so ensure quality communication.
I am a passionate technology innovator; my sole aim is to empower you by breaking down technological barriers. I am a mission-spirited seasoned professional, having 12+ years of honed industry experience in a diverse set of technologies, ever ready to materialize your ideas into reality.
Over the past years, I have developed and delivered numerous web and Mobile applications for various companies, ranging from small to medium enterprise to large corporate. I build AI-powered mobile applications, real-time video streaming platforms, SaaS products, MVPs, and on-demand service apps, with scalable and high-performance backend architectures using Node.js, NestJS, Laravel, and Firebase.
I've worked and developed solutions for the following domains:
➜ Artificial Intelligence Powered Apps
➜ Social Networking, Dating Apps
➜ E-commerce Apps
➜ BLE & IoT Apps
➜ Health and Fitness Apps
➜ Hotel and Travel Booking Apps
➜ Education and E-Learning Apps
➜ Entertainment and Media Apps
➜ Financial Services Apps
➜ Food Delivery Apps
➜ On-Demand Services Apps
➜ Utilities and Tools Apps
➜ E-Learning Mobile Application
➜ Video Streaming, Voice Calling, Chat and Messaging Apps
➜ Real Estate Apps
➜ Taxi Booking app
Technical Skill-Set:-
• Native mobile app development: iOS using Swift and Android using Kotlin
• Hybrid mobile app development: React Native and Flutter (Dart)
• Backend Development: Node JS, Nest JS, Laravel, PHP
• Frontend Development: React JS, Next JS, Angular, HTML5, CSS3
• Database & Cloud Storage: MySQL, PostgreSQL, MongoDB, Firebase, DynamoDB
• API Development & Integrations: REST APIs, AWS Lambda, API Gateway
• Social network integration: Facebook, Twitter, LinkedIn, Google+, Instagram
• Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio
• Payment Gateway Integration: PayPal, Stripe, Razorpay, Braintree
• Geolocation Services: GPS Tracking, Google Maps, Apple Map Kit
• Version Control: Github, Gitlab, Bitbucket
• Management Tools: Trello, Slack, Zira, Asana, Basecamp
My skills include and are not limited to Mobile App Development with admin panel, MVP Development & SaaS Application Development, API Development & Third-Party Integrations along with Node.js, NestJS, Laravel, PHP Backend Development for Mobile & Web Apps. Also Firebase Integration for Auth, Firestore, Cloud Functions, Payment Gateway Integration (Stripe, Razorpay, PayPal) and Real-Time Chat, Notifications & WebSocket Integration that allows me to develop feature-rich Web and Mobile Apps.
Let’s shake hands together in creating something great together. Ping me to experience outstanding results and for best in class and most efficient web and mobile solutions at competitive price.
Thank You
Sanjeev Kumar_Mobile App Developer | Flutter App Developer | React Native Developer
#ReactNative #API Integration #Map Integration #Mobile App Development #JavaScript #TypeScript
#Firebase #GraphQL #Firebase Cloud Firestore #Mobile App #Redux #Stripe
#flutter #Flutterflow #dart #Firebase #webdeveloper #nodejs #appdevelopment #ios #typescript #mobiledevelopment #mongodb #javascriptdeveloper
#ReactNativedeveloper #Typescript #ReactNativemobiledeveloper #ReactNativeappdeveloper #ReactNativemobileappdeveloper #APIIntegration #MapIntegration #MobileAppDevelopment
Related Keywords:-
Mobile App Developer, Mobile app development, Android app Development, iOS app development, Native App Development, Android Developer, iOS Developer, Kotlin, Swift, Flutter Developer, React Native Developer, Flutterflow-Flutter Developer, Firebase, BLE, ChatGPT, AI, Chatbot, Cross-Platform Development, Android Apps, iOS Apps, Mobile UI/UX Design, API Integration, Firebase, AWS, Custom App Solutions, Payment Gateway Integration, Backend Development, REST APIs, Push Notifications, Google Play Store Deployment, Apple App Store, React Native Developer, Flutter Developer, Mobile app Design
Steps for completing your project
After purchasing the project, send requirements so Sanjeev can start the project.
Delivery time starts when Sanjeev receives requirements from you.
Sanjeev works on your project following the steps below.
Revisions may occur after the delivery date.
Architecture Blueprint
Figma UI Audit & BLE Protocol Mapping
UI Engineering.
React Native / Expo Component Scaffolding