Ray tracing has carried marketing pitches for years, but the real change to game visuals on phones came from AI upscaling. The same logic now powers photo apps on Android: a clever model can turn a 1MP family snapshot into something that prints, or rescue a blurry crop from a video frame. The phone does the lift, the cloud handles the rest, and the result is usable in seconds.
We tested six AI image upscaling apps that we would actually recommend. The list mixes generalist photo editors with dedicated AI enhancers, free first picks with paid power-user tools, and one app we keep coming back to because its preview is honest.
What to look for in an AI upscaling app
A few things matter before you pick one:
- Does it run on-device or in the cloud? On-device is faster offline; cloud handles bigger jobs.
- Does it preserve details or hallucinate them? Some apps invent faces that were never in the source.
- Does the free tier let you save a high-resolution result or downscale it?
- Are exports stripped of EXIF and watermarked? Several apps add watermarks on free plans.
- Does it accept batch uploads? One-by-one workflows fall apart on hundreds of photos.
Quick comparison
| App | Best for | Platforms | Free plan | Paid tier | Watermark |
|---|---|---|---|---|---|
| Remini | Faces and portraits | Android, iOS | Yes (limited) | Premium subscription | Free plan watermarks results |
| Snapseed | Manual sharpening | Android, iOS | Yes | None | No |
| PicsArt | Everything in one app | Android, iOS, web | Yes | Gold subscription | Free plan watermarks AI tools |
| Adobe Photoshop Express | Brand-safe edits | Android, iOS | Yes | Premium subscription | No |
| HitPaw Photo Enhancer | Documents and old photos | Android, iOS, desktop | Limited free trial | Premium subscription | Trial watermarks |
| Pixelup | One-tap upscales | Android | Yes (limited) | Premium subscription | Free plan watermarks |
The apps
1. Remini — Best for portraits
Remini is the app that put AI portrait restoration on most phones. The face-detection-first pipeline brings out detail in eyes, hair, and skin without the plastic finish that the early generation of enhancers shipped with. Recent updates added a video enhancer, an “AI photos” generator (which we ignored for the upscaling pass), and faster batch processing.
Where it falls short: the free plan watermarks results and limits daily enhances. The model sometimes invents wrinkles or jewellery on lower-resolution sources.
Pricing:
- Free: limited daily enhances with watermark
- Paid: weekly or annual subscription removes watermark and caps
Platforms: Android, iOS
Bottom line: the right pick for restoring family portraits and old IDs.
2. Snapseed — Best for manual sharpening
Snapseed is Google’s free, ad-free photo editor. The Details tool gives you separate sliders for structure and sharpening, which is the closest thing to a hand-tuned upscale you can do on a phone without a subscription. Combined with the Selective tool, you can sharpen eyes and a face without pushing noise into the sky behind them.
Where it falls short: there is no learned super-resolution. If your source is heavily compressed, the manual tools cannot synthesise detail that was never there.
Pricing:
- Free: every feature, no ads, no subscription
Platforms: Android, iOS
Bottom line: the free editor every Pixel and iPhone owner should have.
3. PicsArt — Best all-in-one
PicsArt mixes AI tools (super-resolution, background removal, generative fill) with traditional editing in one bundle. The free tier covers a daily quota of AI enhances, the iOS and Android builds share account state, and the Pixel-friendly editor handles HEIC and DNG files alongside JPEG and PNG.
Where it falls short: the free tier watermarks the AI tools and limits export resolution. The notification stream pushes editorial features more aggressively than most editors.
Pricing:
- Free: daily AI quotas with watermark on free plan
- Paid: PicsArt Gold subscription for unlimited AI tools and higher-resolution export
Platforms: Android, iOS, web
Bottom line: the right pick if you want upscaling alongside one-app editing.
4. Adobe Photoshop Express — Best brand-safe edits
Adobe Photoshop Express ties into Adobe’s Sensei models for super-resolution and noise reduction. Outputs preserve EXIF, leave the original untouched, and sync via Creative Cloud if you have it. Pixel and iPhone HDR files import cleanly, which matters when most other apps coerce them to JPEG.
Where it falls short: the free tier shows ads and gates the highest-resolution export behind a Premium subscription. The AI tools are not the strongest on the market; Adobe’s premium models live in Lightroom mobile.
Pricing:
- Free: most edits with ads
- Paid: Premium subscription or bundled with Creative Cloud
Platforms: Android, iOS
Bottom line: the predictable pick for anyone who already lives in Creative Cloud.
5. HitPaw Photo Enhancer — Best for documents and old photos
HitPaw Photo Enhancer is the most flexible of the dedicated AI enhancers. The model list lets you pick a face model, a general model, an animal model, or a scratch-removal model per image, which is rare on mobile apps. It handles low-light scans and faded prints especially well, with the document model preserving line geometry that other apps round off.
Where it falls short: the desktop product is stronger; the mobile build’s batch size is smaller. The free trial is short, and the paid plan tilts annual.
Pricing:
- Free: limited trial credits
- Paid: monthly, annual, or lifetime tiers
Platforms: Android, iOS, Windows, macOS
Bottom line: the right tool if you have a real archive to restore.
6. Pixelup — Best for one-tap upscales
Pixelup keeps the workflow to a single button. Drop a photo in, pick 2x, 4x, or face-priority mode, and wait. The result downloads at the chosen resolution, with the original kept intact. Good for casual users who do not want a dashboard.
Where it falls short: the free plan watermarks. The model is competent but not best in class for portraits; for those, Remini is a better pick.
Pricing:
- Free: limited daily enhances with watermark
- Paid: weekly or annual subscription
Platforms: Android
Bottom line: the quick fix when you do not want to think about model choice.
How to pick the right one
Install Remini if your subject is a person and you have a budget for a paid week or month. It is the strongest portrait restorer on the list.
Install Snapseed if you want a free, no-account editor that sharpens cleanly. Pair it with any of the others above; Snapseed is the finishing tool.
Install PicsArt if you want one app to handle every photo job and you can live with a subscription. Install Adobe Photoshop Express instead if you already pay for Creative Cloud or you need brand-safe outputs.
Install HitPaw Photo Enhancer if you have a stack of old prints, document scans, or low-light shots to recover. The per-image model picker is its real strength. Install Pixelup if you want the simplest tap-and-go upscaler and you do not need pro features.
A practical free stack: Snapseed for fine control plus Remini’s free quota for the day’s portrait upscale, with one of the paid apps reserved for batch work.
FAQ
Are AI upscalers safe to use on personal photos?
Most send the image to a cloud server for processing. Read the privacy policy of any app before uploading. Snapseed runs locally and never uploads. Remini, PicsArt, Adobe, HitPaw, and Pixelup all process in the cloud.
Can these apps upscale video frames?
Remini and HitPaw both offer separate video enhancers. The other apps focus on stills.
Does AI upscaling work on screenshots?
Yes, but the result depends on the source. Screenshots with small text usually fare poorly because the model invents detail in unsharp letterforms.
Why do my upscaled photos look plastic?
The base model is trying to over-smooth faces. Try a lower enhancement strength, switch to a face-priority mode if available, or pair the AI tool with Snapseed’s Selective tool to dial the effect back.
Can I use these apps without an account?
Snapseed works fully anonymously. The others require account sign-in for cloud processing, even on the free tier.
