5 stars: This app now features also day/month/year history for temperature and humidity. Very happy about that. You also get humidity and after a year runing, the batteries are still full. I can recommend the whole ecosystem and Sonoff is proof that a Chinese product can score high in terms of quality. I really am glad that China become such a good player in 15 years, it really is impressive.
4 stars: The app works, for a free app it does what is needed, I don't have problems with it, also the schedules works just fine, with load shedding I can set timer settings when activation needs to happen and it works, don't know about people that complaining about maybe they need stronger wifi signal. Keep up the good work
4 stars: Decent app for smart home control using sonoff devices. However, there are some software glitches like status of motion sensors and contact sensor are not properly updated on the first screen. However, correct status can be seen in 'history records' section. On the first screen (with graphics it most shows past/outdated status). If support team is reading, kindly look into this.
3 stars: After recent update the app can no longer update Sonoff S31 US sockets firmware from the initial version 1.0. I have 3 of those sockets and before the update I was able to pull firmware updates with no issues. This is no longer the case. Please note that this is not a router issue as the update functionality does not work when connected to another phone internet ...