The BraveGen App works on both android phones/tablets and iPhones/iPads.
The BraveGen App also works with or without a data connection. You can work on it any time and it will automatically synchronise with the BraveGen database later when it detects a data connection again.
If you have a new device you should check out this page which refers to some pre-requisites you might need to install on your device.
Note: The minimum android OS version requirement is Android 5.1 to use the BraveGen app. Older OS versions of android are not supported.
Note: The minimum iOS version requirement is iOS 10 to use the BraveGen app. Older iOS versions are not supported.