Once you've initialized your KeepKey, you can use it in conjunction with the MyCelium app on Android or on iOS. Follow the steps below.
1. Connect your KeepKey via an OTG cable (sold separately) your phone and open the MyCelium app, which is available on the Google Play store and the App Store.
2. Select the three dots in the top right corner and press cold storage.
3. You will see KeepKey listed as an option.
4. When prompted, enter your PIN as you normally would.
5. You can now use your KeepKey with MyCelium.