Atomize: Shrink image file size
Atomize: Shrink image file size
f-droid.org
Atomize | F-Droid - Free and Open Source Android App Repository

cross-posted from: https://discuss.tchncs.de/post/47841083
If you try to find a similar app on the google play store you get apps that do this, but riddle you with data collection prompts. "Free Trial Subscriptions" and "19$ Lifetime purchase ads"