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Polkadot Vault

Polkadot Vault is an open-source mobile application that turns an iOS or Android smartphone into an air-gapped cold-storage wallet for Substrate-based accounts. It creates and stores private keys, parses and signs messages and transactions offline, and exchanges data with connected software through QR codes.

Independent OpenViST project profile, based on linked sources.

Polkadot Vault — OpenViST project profile in Wallets.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when account keys need to remain on a smartphone with Wi-Fi, mobile networking and Bluetooth disabled, while transactions or messages are exchanged through QR codes.

Who it is for

  • Polkadot and Kusama account holders seeking offline key storage.
  • Users working with Substrate-based networks.
  • Developers and technical users evaluating an open-source mobile signer.

Documented uses

  • Create and store Substrate accounts on an isolated smartphone.
  • Sign messages and cryptocurrency transactions without network connectivity on the wallet device.
  • Transfer signing data through QR codes while keeping private keys on the phone.
  • Back up and restore accounts, review the activity log, and update metadata offline.
Before you choose

Requirements & limits

The repository identifies public builds for iOS, Android and GitHub Releases. It is licensed under GPL-3.0. No account or pricing requirement is specified in the supplied sources.

  • The phone must remain disconnected from Wi-Fi, mobile networking and Bluetooth for the intended air-gapped workflow.
  • QR-code transfer is the documented bridge between Vault and connected software.
  • The wallet supports Substrate-based networks, including Polkadot and Kusama.
  • The application combines native Swift and Kotlin interfaces with a shared Rust core.
  • The public repository includes transaction parsing, transaction signing, QR handling and offline network-information update components.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

COMPARE OPTIONS

Compare options for Wallet connections

These projects document a common task and share a project role. This is a source-based comparison, not an execution benchmark or a guarantee of interchangeability.

ProjectDocumented purposePlatformAccess and requirements
Polkadot VaultCreate and store Substrate accounts on an isolated smartphone.Android, iOS, MobileThe repository identifies public builds for iOS, Android and GitHub Releases. It is licensed under GPL-3.0. No account or pricing requirement is specified in the supplied sources.
ShangoConnect a mobile wallet to a personal LND node.Android, iOS, MobileThe README lists iOS TestFlight and Google Play beta installation routes and describes the app as a public beta. Its cloud-node instructions are for testnet.
Walletconnect Expo ExampleStudy or prototype a wallet connection and authentication screen in a React Native dapp.Android, iOS
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
3 October 2026
Original website title
novasamatech/parity-signer · Official homepage title · retained in its source language
How we review sourcesSuggest a correction