Udit Amreliya
Android Developer
Crafting exceptional mobile experiences with 8+ years of expertise in Android development. Specialized in Google Play Billing, in-app subscriptions, payment gateway integration, and subscription lifecycle management. Expert in e-commerce, live streaming, and VPN solutions.
Featured Apps
Ryn VPN
Secure VPN solution with military-grade encryption, enabling safe browsing even in restricted regions with advanced obfuscation protocols.
View on Play Store →Hammer Security
Advanced security application providing comprehensive protection features including app lock, intruder detection, and privacy tools.
View on Play Store →Indie App Santa
Deal aggregator showcasing curated promotions with personalized categories, real-time updates, and seamless Play Store integration.
View on Play Store →EMI Calculator
Smart loan and EMI calculator with multiple loan types support, helping users make informed financial decisions with detailed breakdowns.
View on Play Store →India GST Calculator
Comprehensive GST calculation tool helping businesses and individuals manage Indian tax calculations with precision and ease.
View on Play Store →Huge 80s Clock Pro
Retro-inspired clock widget with nostalgic 80s aesthetics. Successfully migrated from subscription-based to free model by removing Google Play Billing integration, making premium features accessible to all users.
View on Play Store →Technical Arsenal
Languages & Frameworks
Core Technologies
Integration & SDKs
Tools & Analytics
Domains
Design & UI
Professional Journey
Leading Android development for multiple high-impact projects including GST calculators, EMI tools, VPN solutions, and security apps with focus on Google Play Billing integration and subscription lifecycle management.
- Expert in Google Play Billing API implementation, subscription management, and in-app purchase workflows
- Successfully migrated Huge 80s Clock Pro from subscription model to free by removing billing integration
- Managed subscription renewals, cancellations, and access-extension logic across multiple apps
- Achieved 20% revenue increase through optimized monetization strategy (ads + IAPs)
- Implemented dual monetization using AdMob/IronSource and RevenueCat subscription management
- Restructured legacy codebase to modern modular architecture
Developed and maintained Ryn VPN serving 15M+ users, implementing Google Play Billing for subscription management and custom obfuscation protocol for sanctioned countries.
- Implemented complete Google Play Billing integration for subscription lifecycle management
- Managed subscription renewals, cancellations, and grace periods for 15M+ user base
- Optimized in-app purchase flows resulting in 20% revenue growth
- Improved app ratings to 4.2 stars through continuous maintenance and updates
- Built internal release structure for restricted markets (Iran, China, Russia)
- Ensured Google Play Store compliance with evolving policies and requirements
Built live e-commerce streaming platform enabling interactive shopping experiences for thrift stores and small brands.
- Developed live streaming interface using 100ms (WebRTC) and Mux (RTMP)
- Created complete event scheduling system with giveaway functionality
- Implemented real-time chat using PubNub for buyer-seller interaction
- Integrated CleverTap for comprehensive analytics and user behavior tracking
- Set up DataDog for real-time monitoring and bug tracking
Contributed to fantasy sports platform serving 20M+ users with real-money gaming features including Rummy, Fantasy Sports, and Poker.
- Developed Series Leaderboard showcasing weekly top performers and winnings
- Implemented Daily Rewards system driving user engagement
- Built Quiz feature increasing revenue by 49% during COVID pandemic
- Created dynamic sports system with admin-controlled contest management
- Redesigned user profile flow and navigation UI
- Integrated marketing banners increasing contest participation
Developed diverse portfolio of apps including expert consultation platforms, event booking systems, and temple management solutions.
- Built Shawer - Saudi expert consultation platform with chat and appointment features
- Created Kirtan London - Music and meditation app with event booking
- Developed My Temple Connect - Temple management app with donation integration
- Implemented secure payment gateways for multiple applications