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AirGap Wallet

Your old smartphone is your new ‘hardware wallet’

AirGap is a crypto wallet system, that let's you secure cypto assets with one secret on an offline device. The AirGap Wallet application is installed on an everyday smartphone whereas AirGap Vault is installed on a dedicated or old smartphone that has no connection to any network, thus it is air gapped.


AirGap Wallet has an overview of all accounts with their respective balances and transactions and is responsible for transaction creation and for the broadcasting of signed transactions. The mobile application, AirGap Wallet is a hybrid application (using the same codebase for Android and iOS which helps with coordinated development). Created using Ionic framework and AirGap's coin-lib to interact with different protocols.



  • Portfolio Overview of accounts synced from AirGap Vault
  • Communication with the Vault application over QR codes if installed on a second device or app switching if installed on the same device
  • Create transactions for all supported currencies like Aeternity, Ethereum, Bitcoin etc.
  • Broadcast signed transactions
  • Transaction history for each account


First follow the steps below to install the dependencies:

$ npm install -g ionic
$ npm install -g cordova
$ npm install

Run locally in browser:

$ ionic serve

Run on device:

$ ionic cordova platform run android
$ ionic cordova platform run ios


To run the unit tests:

$ npm test

Building the Chrome Extension

To build and run the chrome extension, you have to use a different @ionic/storage module. Change the following line in your package.json:

    "@ionic/storage": "2.2.0",


    "@ionic/storage": "git+",

After that, you need to run

npm install

You can now build the extension:

npm run extension:prepare
npm run extension:build:dev

Make sure you have node 11 or later installed, otherwise it might fail during the last step.

Now you can load the unpacked extension from the ./extension/ folder.


If you discover a security vulnerability within this application, please send an e-mail to [email protected] All security vulnerabilities will be promptly addressed.