Android Apps
Built to Last.
Hi, I'm Juan Cabrilla Arenal β a freelance Android developer based in Spain. I design and build powerful, beautiful apps from MVP to production.
Crafting Android experiences since 2019
I'm an independent Android developer passionate about creating apps that solve real problems. From fintech to productivity tools, I build apps with clean architecture, solid UX, and maintainable code.
Currently developing my own crypto wallet MVP β combining deep technical knowledge with real-world product thinking.
Advantages that make a
real difference
Fast Delivery
MVPs in 2β4 weeks. Full apps on time, every time. Agile sprints with weekly updates so you always know where we stand.
Clean Architecture
MVVM, Clean Architecture, SOLID principles. Your codebase stays maintainable whether you scale or hand it off to another team.
Security First
Encrypted storage, secure API calls, biometric auth. Especially critical for fintech and crypto apps β I treat security as a feature, not a checklist.
Great UX
Material Design 3, smooth animations, accessibility. Apps your users actually enjoy β not just technically correct but genuinely delightful.
Clear Communication
Daily updates, transparent milestones, honest timelines. No black boxes, no surprises. You're always in the loop.
Post-Launch Support
30 days of free bug fixes after delivery. Ongoing maintenance packages available. Your app doesn't end at launch.
CryptoVault Wallet
My own product: a non-custodial Android crypto wallet with multi-chain support, biometric unlock, QR scanner, and real-time portfolio tracking. Currently in beta testing.
- β Multi-chain: BTC, ETH, SOL, BNB
- β Hardware-grade key storage (Android Keystore)
- β Offline transaction signing
- β WalletConnect v2 support
Ready to build your app?
Let's turn your idea into a real, working Android application.
Start a Project β