Nikul D.
Mobile App Developer | iOS & Android | AI Mobile App Development
Top Rated Mobile App Developer for iOS & Android Mobile App Development. I help startups, founders and growing businesses build, improve and launch production-ready mobile apps from MVP planning and UI implementation to backend integrations, testing and App Store / Google Play release. 100% Job Success | Top Rated | 5-star client feedback I work with both new mobile products and existing apps that need improvements, new features, technical rescue, performance fixes or launch support. MOBILE APP DEVELOPMENT SERVICES • Custom iOS & Android Mobile App Development • Cross-Platform Mobile App Development • Mobile App MVP Development • Android App Development • iOS App Development • AI Mobile App Development & AI API Integration • Firebase & Supabase Backend Integration • REST API & Third-Party SDK Integration • Authentication, Push Notifications, Maps & Real-Time Features • Stripe, RevenueCat, Razorpay, Subscriptions & In-App Purchases • Mobile App Bug Fixes, Feature Development & Performance Optimization • App Store & Google Play Deployment Support • Mobile App Development Consultation & Technical Planning NEW MOBILE APP DEVELOPMENT Have an app idea, Figma design or product requirements document? I can help turn it into a stable iOS and Android application with a practical architecture, clear milestones and production-ready integrations. EXISTING MOBILE APP DEVELOPMENT I can also step into an existing mobile app, understand the current codebase, fix broken workflows, add features, connect APIs, improve performance and help move the product toward release. BACKEND & INTEGRATIONS My work regularly includes Firebase, Supabase, REST APIs, databases, authentication, cloud storage, notifications, maps, payment gateways, subscriptions, AI APIs and other third-party services. TECHNICAL STACK. Depending on the product requirements, I work with Dart, Flutter, FlutterFlow, Firebase, Supabase, REST APIs, BLoC, Provider, Riverpod and third-party mobile SDKs.I choose the implementation approach based on the product, maintainability, speed and future scale rather than forcing every project into the same technology. HOW I WORK 1. Review your app idea, Figma design or existing mobile application. 2. Define user flows, scope, architecture, milestones and integrations. 3. Build the mobile application and connect the required backend/services. 4. Test core workflows, edge cases and performance. 5. Prepare production builds and support App Store / Google Play launch. WHY CLIENTS WORK WITH ME • Top Rated freelancer with 100% Job Success • Experience developing for both iOS and Android • Comfortable with new apps and existing-codebase rescue work • Clear progress communication and practical technical recommendations • Backend, API and third-party integration experience • Support from planning through production launch Clients have highlighted my responsive communication, clean builds, documentation and ability to take ownership when a mobile project needs to be stabilized or completed. Send me your mobile app idea, Figma design or existing application. I can review the requirements and recommend the clearest next step. Highlighted Skills: Mobile App Developer | Mobile App Development | Cross-Platform App Development | iOS App Developer | Android App Developer | MVP Development
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $4.6k
Billed in all: $7,044$7k
$912 in the last 6 months
Across 10 contracts
Earnings, last 30 days
Skill rankings: Top 12% in App Store Upload
Ranked by MRR among everyone on Upwork with the skill.
- #23App Store Upload193 freelancers · 🇮🇳 #6Top 12%🇮🇳#6 of 46
- #85Mobile App Development Consultation334 freelancers · 🇮🇳 #35Top 25%🇮🇳#35 of 116
- #92User Authentication698 freelancers · 🇮🇳 #28Top 13%🇮🇳#28 of 198
- #93Mobile App Bug Fix453 freelancers · 🇮🇳 #26Top 21%🇮🇳#26 of 126
- #157FlutterFlow834 freelancers · 🇮🇳 #58Top 19%🇮🇳#58 of 285
- #166In-App Purchases1,101 freelancers · 🇮🇳 #51Top 15%🇮🇳#51 of 336
- #208Smartphone995 freelancers · 🇮🇳 #58Top 21%🇮🇳#58 of 246
- #246Hybrid App Development1,431 freelancers · 🇮🇳 #100Top 17%🇮🇳#100 of 581