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Version: v6

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Other Languages

While JavaScript and TypeScript dominate web development, smart contract frontends can be built with various technologies. Here are libraries and SDKs for other platforms and languages.

Mobile Development​

iOS​

  • novasamatech/substrate-sdk-ios
  • Low-level generic iOS SDK for Substrate-based blockchains
  • Written in Swift
  • Provides foundation for building native iOS apps that interact with Polkadot networks
  • Suitable for wallet applications and dApps requiring native iOS performance

Android​

  • novasamatech/substrate-sdk-android
  • Low-level Android SDK for Substrate-based blockchains
  • Written in Kotlin/Java
  • Enables native Android applications to interact with Polkadot networks
  • Ideal for mobile wallets and native Android dApps

Backend and Server-Side​

Rust​

  • paritytech/subxt
  • Rust library to submit extrinsics (transactions) to a Substrate node via RPC
  • Perfect for:
    • Backend services that interact with smart contracts
    • CLI tools for contract management
    • Server-side automation and monitoring
    • Integration testing frameworks

Python​

  • polkascan/py-substrate-interface
  • Python library for interfacing with Substrate nodes
  • Use cases:
    • Data analysis and blockchain monitoring
    • Backend automation scripts
    • Integration with existing Python ecosystems
    • Rapid prototyping and testing