FrogRadio can now play HLS streams. HLS stands for HTTP Live Streaming and is a versatile adaptive streaming protocol for audio and video. For more information see the HLS Wiki Page. For some HLS streams to play try SomaFM/Groove Salad - 320k, or SomaFM/Groove Salad - FLAC.
The iOS version of FrogRadio that can play HLS streams will be available in the next few days.
If you have been having problems with your favorites folder disappearing it should be fixed now. FrogRadio uses Apple's iCloud to store your favorites and to sync them between your devices. For some months now this iCloud syncing service has not been working very well. This issue has affected many macOS and iOS apps. It has been difficult to get any help with this from Apple until recently. There has been some more public mention of the problem now and Apple says the problem is fixed. It seems like this is true and we are no longer seeing this problem in FrogRadio.