Currently downloading, then modifying, then uploading, files to Cryptomator is extremely impractical just to make file changes. Additionally, the files are not encrypted in transit during download, or in transit during upload, or while stored on our devices (if our devices are not encrypted).
Your Google Play Store description does not mention that files can only be read but not written to. You should consider revealing this shortcoming in the description since it negates the security potential of this app. Especially since it is not free.
Cryptomator has a lot of potential, but we really need write capability.
When will we be able to write to our files?