RePix - AI Image Upscaler

RePix is an offline AI photo enhancer and image upscaler. It sharpens and
enlarges your photos using Real-ESRGAN, a neural network that reconstructs
detail instead of simply stretching pixels. Increase image resolution, fix
blurry pictures, and improve photo quality without uploading anything.

Everything happens on your device.

The AI model ships inside the app. Your photos are never uploaded, never sent
to a server, and never stored anywhere outside your phone. There is no account
to create and no sign-in. The only network traffic RePix makes is for loading
ads, and even that only starts once an ad is actually needed.

WHAT IT DOES

- 2x and 4x image upscaling powered by Real-ESRGAN
- AI photo enhancement that recovers detail in blurry and low-resolution images
- GPU-accelerated inference via Vulkan, with an automatic fallback for devices
without support
- Crop before you enlarge, so you can focus on the part that matters
- Side-by-side comparison of the original and the result
- Save to your photo library or share directly to other apps
- Export as JPEG or PNG

GOOD FOR

- Old photos and scanned pictures that look soft or low-resolution
- Blurry images you want to sharpen and clean up
- Screenshots and images saved from messaging apps
- Small product or profile pictures you want to print or post
- Anime art, illustrations and digital drawings that need a larger canvas
- Wallpapers and background images that look pixelated on a bigger screen
- Photos you want to enlarge for printing without losing quality

WHY OFFLINE MATTERS

Most AI upscalers send your images to a cloud server. RePix does not. The
entire upscaling process runs locally on your phone, which means your photos
stay private, the app works without an internet connection for processing,
and there is no waiting in a server queue.

HOW PRICING WORKS

RePix is free. One 2x upscale is available every 24 hours at no cost. Beyond
that, watching a short rewarded video unlocks a single 2x run. Each 4x run is
unlocked by watching a rewarded video. There are no subscriptions and no
in-app purchases.

PRIVACY BY DESIGN

Output images are re-encoded from raw pixels, which means EXIF and GPS data
from the original are not carried over. RePix stores nothing about you: the
only thing saved on your device is a timestamp marking when you last used your
free run.

REQUIREMENTS

Input images must be at least 128 pixels on the shorter side for 2x, or 256
pixels for 4x. Output is capped at 4096 pixels on the long side, so 2x is
available for areas up to 3276 pixels on the long side, and 4x for areas up to
1638 pixels. If an area is larger, crop it to the size shown in the app first.
Supported input formats include JPEG, PNG, WebP, HEIC, BMP, TIFF and GIF.

FREQUENTLY ASKED QUESTIONS

Does RePix work offline?
Yes. Image processing runs entirely on your device. An internet connection is
only used to load ads.

Do I need an account?
No. There is no sign-up and no login.

Are my photos uploaded anywhere?
No. Your images never leave your phone.

How much can I enlarge an image?
RePix supports 2x and 4x upscaling, with output capped at 4096 pixels on the
long side. 2x works on areas up to 3276 pixels on the long side, and 4x on
areas up to 1638 pixels. For a larger image, crop the area first.

Is there a subscription?
No. RePix is free and supported by optional rewarded ads. There are no
subscriptions or in-app purchases.