Renogy 4G 4+

My guess is that if you are not in China this app will not work for you. Also please do not waste time trying to talk to technical support as they seem to be clueless on how to assist anyone. The app would not let me create a login for myself, so I proceeded to call/email technical support. To which they blamed me not being able to create a log in on my SIM card not being active (I work in the world of IoT design so my sim is always active). They then proceeded to ask the same repetitive questions as I tried to simply explain I need to know how to make a log in for the app. Needless to say I never was able to make a log in, so I tossed the equipment in the garbage. Renogy just lost a long time customer (which I know is a drop in the bucket for them) but they may want to fix their apps including the Bluetooth apps and their support team. PLEASE DO NOT WASTE TIME ON THIS APP!

Very limited functionality, messages are in Chinese, boundary map is in China, I can never connect with my device because the app ALWAYS says my device is offline even though it is indeed online and connected to the network and numerous other problems with the app. I could possibly tolerate some of the minor issues, but not being able to connect to my data module/charge controller renders this app completely useless. The entire purpose of the app is to communicate with the data module and provide the user with system information and it didn't even do that, not in the least! The app says my device is offline and that it has been offline for a month (it connected sporadically first the first 3 days after I purchased and installed the system, but not once since that time, system is about a month old).

This app does not work and the company will not fix it. Please have them remove it from the App Store. Their DM1 product will not connect to it and it responds in Chinese. Probably a way for china to gather data through your phone chip.