2 (in one) different ideas : file versioning and an Android app to sync photos

[alaindehu-eng]

I'm in the process of switching from NextCloud to sync-in, and firstly, a big thank you—what a refreshing change from that dinosaur!
There are two features I'm missing:
1 - file versioning
2 - an Android app to sync photos.
Even though I’ve managed to work around the lack of an Android app by using Folder Sync, the lack of version control is a real drawback for me.