Edit- I see. I am updating my rating, but I wish app description was clearer about the fact that it only converts to jpg. Also the location of compressed image should have been clearer. It was the smallest text and in white colour. I completely missed it before.
So far good. The app developer was prompt to respond to my query related to deleting the original one after compression. I found it after the option which I never used because of the adv coming in between the compression and save options
I particularly like the manual compression to 50kb as it is not a noticeable loss of detail on my tablet, yet it removes a great deal of unnecessary space bytes. I think it also gets rid of the meta data be default and who knows what be lurking in there.
It's a great app. There's one unclear design element IMO: after a batch compression, one might expect "delete" to delete the originals, rather than the brand new files. Having a "delete originals" option would be nice (different from Replace, allowing an inbox > outbox workflow.)