The iFit Act app, IFIT TRACK, that is used to upload and manage your iFit Act device has the following compatibility requirements.
For IOS, an iPhone 4S, 5S, 5C, and above are required. iPod Touch 5th generation and above.
Android 4.3 with Bluetooth BLE is required.
The iFit Act device uses Bluetooth low energy, also known as BLE. There is currently not an alternative to the app to utilize the iFit Act device to its fullest.