The Keilton app requires Bluetooth 4.1 hardware or later on your device in order to work properly. This is because the app uses BLE (Bluetooth Low Energy) to communicate with Keilton devices. Phones with Bluetooth hardware earlier than 4.1 will not work correctly.
The Keilton app is compatible with most iPhones and iPads using iOS 10 or higher. This covers most iPhone models from the iPhone 5 onwards.
The app supports Android 5.0 (Lollipop) or newer. It should work on most modern Android smartphones but may have issues connecting on older models or devices with heavily modified versions of Android.
If having connectivity problems, first make sure your device supports Bluetooth 4.1 or later. This can be checked in your phone’s settings. Older Bluetooth hardware is the primary reason the app may fail to operate normally.
Outdated OS versions, custom ROMs, or changes made by device manufacturers can also cause compatibility issues on some Android devices.