Minor Details that aren’t important but you may want to know. The speed of the app is dependent upon your connection speed and also the size of the wall. Some are relatively large and hence may take a while to load, so be patient. It’ll be worth it, because the longer it takes, the better the quality! Or maybe your internet connection is just terrible . The app is currently designed on a SDK (Software Development Kit) for Android 5 and above (however it is targeted at Android 6). This means it may have some issues running on lower versions of Android such as that of Android KitKat and lower (4.4). If you have a problem with this, maybe you should update your software. If you can’t do this, than your phone is probably ancient and you should get a new one. It’s worth it.