My Revolt is on an older firmware. I tried the ridecontrol app when I got it at the end of 2019 and it worked alright, but haven't looked since. Got my range extender, which requires an update, and naturally the app refuses to connect to the bike. Tried 5 devices, but all ios and none of them worked. Dealer is new to ebikes and didn't have the service tool, but I let them know what was going on and they immediately ordered one. Hopefully should be in this week and they can run the update.
Giant is definitely behind the ball on the software end. From what I've seen, Specialized and Trek have fairly sophisticated apps for their electric bikes. Given how huge they are and how fast the ebike market is growing, thats definitely something Giant should throw some money at.
In the short-term, the Android is the only thing that seems to work to update the firmware. And even then, I needed to restart several times.
@Giant -- you need to hire SOME REAL SOFTWARE ENGINEERS AND GET THIS SQUARED AWAY. Like it or not, software is now an integral part of your e-bikes and you need to make it work smoothly every time. And provide support that is accessible, responsive and effective.