[matke]

Solution for anyone on android having crashes esp with TBM 
Maven from kodinerds has an updated  Kodi 21 nightly build which has resolved all crashes ( at least for me ) especially using TBM. try from here
This unfortunately installs as another kodi side by side 
There is another fix which I have not tried yet :  here

It's not a little early for kodi 21? I think there is also a version 20 with a fix.
Kodi crashing problem should be resolved with the next Kodi update, so there will be no need for an alternative. At least I hope so.