Introduction:
AirGap is an secure and airgapped self-custody wallet solution which is completely open source and free to use. The solution is comprising of two applications:

AirGap Vault, installed on any mobile phone that is disconnected from the network (LTE, NFC, Bluetooth or WLAN) and hence transforms a dedicated or spare mobile device into an airgapped cold wallet. The Vault allows for random private key generation, secret storage, secret recovery and continuous check for connectivity root access and screenshot detection to prevent the device from being compromised.

The second app is the AirGap Wallet, installed on any connected mobile device to facilitate transactions or broadcast transactions. Through the two-way approach, it guarantees higher security, protecting the users from any potential risks.

Communications and signing of transactions are done seamlessly without the use of cables, thanks to verifiable QR-codes.

To ensure top security, AirGap has a unique approach to creating a secure key by utilising various sources of entropy such as video, sound, gyroscope, and touch (optionally, dice roll and coin flip). This ensures maximum randomness and therefore results in a secure key generation.

This illustrates the signing process using the two apps (click to enlarge) For managing smaller funds, AirGap allows users to run both apps on a single device, which still guarantees better security than using one single app. However, we recommend the approach with two devices.

AirGap has currently more than 100 currencies and tokens integrated, see: https://airgap.it/supported-currencies 6.