The Digital Controls app for Android can be downloaded from Google Play. Since May 2020, some smartphone models are no longer certified by Google, so they do not use Google Mobile Services and therefore Google Play. The Digital Controls app uses a set of Google services to function, so they are not compatible with other applications and services. The models for which our app is not compatible are the following: Huawei P40 Huawei P40 Lite Huawei P40 Lite 5G Huawei P40 Lite E Huawei P40 Pro + Huawei P40 Pro Huawei Mate 30 Pro Huawei Mate 30 Honor 9X Pro Honor View 30 Pro Honor View 30