Cold wallet

Ergo Wallet App implements EIP-0019 Cold Wallet functionality.

That means that you can use the wallet app on a device without internet access to sign transactions prepared by a device with internet access, but without knowledge of any secrets.

Steps to use the cold wallet:

• Prepare a cold device without internet access (no WiFi set up, flight mode)
• Recommended to sideload the wallet app on Android and Desktops. On iOS, you need to install through app store and activate offline mode afterwards (not possible with TestFlight version).
• Create a new wallet
• On your daily device: Add the wallet you've created in read-only mode
• Start sending funds from your daily device. It will guide you through the steps.

See the demonstration video or tutorial video

Good to know

• You have an old Android device, but it's running an older version of Android than needed to run Ergo Wallet App? Check out if you can flash LineageOS 14.0 or higher.
• From version 1.5 on, you can also use iOS devices for cold wallets. However, keep in mind that you are not able to sideload apps on iDevices and therefore not able to update the app if needed.
• Version 1.4 and versions 1.5 up use a different QR code interchange format and can't work together. Make sure to use the same version on all devices.
• Ergo Wallet App for Desktop runs on Raspi 4. You can use a Pi as a cold device