Unmark

Unmark lets you paint over a watermark, logo, or unwanted object in a photo and

erase it, entirely on your phone, with no internet connection required and nothing

uploaded anywhere.

Watermark removal uses a small, pure-Kotlin nearest-fill and smoothing algorithm.

There is no AI/ML model, no bundled weights, and no native code. See the project

README for how it works.

Features:

* On-device inpainting, no cloud processing, no network permission

* Manual brush selection with adjustable brush size

* Undo last stroke / reset mask, original photo is never overwritten

* Automatic metadata stripping (EXIF, XMP, possible C2PA) on save, with a scan showing

you what was found in the photo before it's gone

* Save result to your gallery or share it directly

* No ads, no trackers, no analytics, no account required