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Saffelo

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Saffelo

Crypto / NFT Wallet — Web3
Safello Stockholm Jun. 2022 — Dec. 2022 Stockholm, Sweden
Kotlin Jetpack Compose Material 3 Web3

Project overview

Native Android wallet and crypto asset monitoring application, focused on Web3 and Blockchain. The project was built from scratch with Kotlin, Jetpack Compose and Material 3.

Missions & features

Asset monitoring

  • Connection to Binance, BitGet and Kraken APIs to collect prices and balances.
  • Real-time asset visualization through charts.
  • Transaction history via Arkham and Polygonscan.
  • Overview of crypto and NFT wallets.

Modern UI/UX

  • Modern and expressive interfaces with Jetpack Compose and Material 3.
  • Progressive migration of XML layouts to Compose.
  • Smooth animations and reusable components.

Architecture and quality

  • MVVM architecture with Coroutines and Flow.
  • Dependency injection with Dagger Hilt.
  • Wrote technical specifications for handover to the internal team.

Results

  • Functional application with external data collection activated.
  • Operational transaction history through Arkham and Polygonscan.
  • Complete technical documentation for handover.

Demo