Karan G.
Mobile App Developer | React Native & Flutter | iOS & Android Apps
Need a reliable Mobile App Developer who can turn an idea, existing product, or unfinished build into a stable iOS and Android application? 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 | 𝟓𝟎𝟎𝟎+ 𝐔𝐩𝐰𝐨𝐫𝐤 𝐡𝐨𝐮𝐫𝐬 | 𝟏𝟒 𝐔𝐩𝐰𝐨𝐫𝐤 𝐣𝐨𝐛𝐬 I provide full cross-platform mobile app development solutions using React Native and Flutter, from planning and UI implementation to API integration, testing, deployment, and ongoing improvement. Already, helped founders, startups, businesses, and product teams build custom mobile applications without the usual uncertainty around code quality, communication, progress, or long-term maintainability. Whether you need a new MVP, a cross-platform application, feature development, bug fixing, or support for an existing app, the work is approached with both technical requirements and business goals in mind. ✒️ 𝐌𝐲 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐞: • React Native and Flutter app development for iOS and Android • Custom mobile app and MVP development • Figma-to-mobile-app implementation • Firebase, REST API, and third-party API integration • User authentication, push notifications, payments, maps, and real-time features • Mobile app testing, debugging, performance optimization, and maintenance • App Store and Google Play deployment support • Existing app enhancement, modernization, and feature development ✒️ 𝐂𝐨𝐫𝐞 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 • Cross-Platform Mobile Development: Flutter | React Native • Mobile Frontend Development: JavaScript | TypeScript | React Native | Flutter UI development • Backend & API Development: Node.js | Express.js | Django | REST API development • Database & Cloud Platforms: Firebase, Cloud Firestore, PostgreSQL, MongoDB, MySQL, SQLite, Redis • Firebase Development: Firebase Authentication | Cloud Firestore | Realtime Database | Cloud Storage | Remote Config | Firebase Cloud Messaging • Mobile App Integrations: Third-party API integration | payment gateway integration | push notifications | user authentication | Google Maps | social login | and in-app purchases • Cloud and Application Architecture: AWS | Microservices | Serverless architecture • AI Mobile App Development: OpenAI API | Claude API | Google AI integrations | AI chatbots | Generative AI features | Intelligent app automation • AI-Assisted Development Tools: Cursor AI | GitHub Copilot | Claude, GPT | Google AI Studio | Lovable | Bolt | v0 by Vercel • Development and Deployment Tools: Visual Studio Code | Git | GitHub | Firebase Console | App Store Connect | Google Play Console ✒️ 𝐀 𝐬𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐚𝐩𝐩 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐬 𝐦𝐨𝐫𝐞 𝐭𝐡𝐚𝐧 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐢𝐧𝐠 𝐚𝐬𝐬𝐢𝐠𝐧𝐞𝐝 𝐭𝐚𝐬𝐤𝐬 • Structured planning • Clean implementation • Clear communication • Early risk identification • Growth-focused decisions • Organized development • Clear project visibility • Defined next steps ✒️ 𝐃𝐮𝐫𝐢𝐧𝐠 𝐭𝐡𝐞 𝐞𝐧𝐠𝐚𝐠𝐞𝐦𝐞𝐧𝐭, 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐞𝐱𝐩𝐞𝐜𝐭 • Clear scope discussion and practical technical recommendations • Consistent communication and timely progress updates • Structured development with attention to stability and maintainability • Testing across key user flows before delivery • Transparent reporting of blockers, trade-offs, and dependencies • Documentation and handover support that make future updates easier My goal is to make mobile app development easier to manage for both technical and non-technical clients. Instead of simply writing code, I bring a solution-focused approach that connects application features, user experience, technical architecture, and business priorities. Have a mobile app idea, an MVP to build, or an existing iOS or Android application that needs improvement? 📩 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 with your goals, current stage, and preferred technology, and we can discuss the most practical path forward.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $12k
Billed in all: $92,965$93k
$2.5k in the last 6 months
Across 20 contracts
Earnings, last 30 days
Skill rankings: Top 6% in Mobile App Design
Ranked by MRR among everyone on Upwork with the skill.
- #10Payment Integration Framework62 freelancers · 🇮🇳 #3Top 16%🇮🇳#3 of 13
- #37Mobile App Bug Fix453 freelancers · 🇮🇳 #10Top 8%🇮🇳#10 of 126
- #54Push Notifications851 freelancers · 🇮🇳 #16Top 6%🇮🇳#16 of 276
- #63Mobile App Redesign693 freelancers · 🇮🇳 #9Top 9%🇮🇳#9 of 155
- #78In-App Purchases1,101 freelancers · 🇮🇳 #21Top 7%🇮🇳#21 of 336
- #116Hybrid App Development1,431 freelancers · 🇮🇳 #40Top 8%🇮🇳#40 of 581
- #182AI Mobile App Development1,401 freelancers · 🇮🇳 #69Top 13%🇮🇳#69 of 463
- #309Mobile App Design5,198 freelancers · 🇮🇳 #44Top 6%🇮🇳#44 of 1,024