If you are having trouble with the iOS App please let us know. Let us know at: email@example.com with your exact problem and what version of the app you are using. You can be added to our testflight list by providing your iOS Apple ID email.
If you are having difficulty with the Android app please let us know exactly what the problem is.
With both devices any pictures or videos (uploaded to wetransfer/mega etc) are greatly appreciated and let us solve the bugs quicker. When describing your problem PLEASE PLEASE use bullet points.