# 4x - AI photo enhancer — Photo Quality Boost

> Photo Quality Boost (iPhone/iPad app by Amir Dorazahi.)

- Source: https://appshunter.io/ios/app/4x-ai-photo-enhancer/id6747011775 (this page in markdown: same URL + `.md`)
- Developer: [Amir Dorazahi](https://appshunter.io/developer/1786826386)
- Category: Photo & Video, Productivity
- Price: $49.99 (on sale, was $99.99)
- Age rating: 4+
- Requires: iOS 13.0 · 46 MB
- Languages: American English
- Released: 2025-08-20
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/4x-ai-photo-enhancer/id6747011775/reviews.md

## What is 4x?

Transform your photos with powerful AI upscaling technology. Photo Upscaler AI enhances image quality and resolution up to 10x without losing detail.

Key Features:
- Contains five new AI upscaling models
- AI-powered upscaling (2x, 4x, 6x)
- Face enhancement, unblur for portraits
- Quality enhancement
- Add details to photos
- No quality loss during upscaling
- Easy one-tap enhancement
- Save enhanced photos to gallery

Perfect for:
- Upscaling natural scenes
- Upscaling portrait
- Unbluring portraits
- Restoring faces
- Improving old photos
- Enhancing social media images
- Preparing photos for printing
- Restoring low-resolution pictures

How it works:

- Select a photo from your gallery
- Choose your preferred scale factor
- Enable face enhancement if needed
- Let AI do the magic
- Save your enhanced photo

Uses advanced technology for professional-quality results.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/


## Version history (last 5 releases)

### 1.1.9 — 2026-03-10

- minor bug fix

### 1.1.8 — 2026-02-13

- Resolved a bug reported by user

### 1.1.7 — 2026-01-12

- Minor bug fix

### 1.1.6 — 2026-01-04

- Added a new model

### 1.1.5 — 2025-12-02

-Added history tab to retain user generated images for 24 hours.

## Apps similar to 4x

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Rehancer: AI Photo Enhancer](https://appshunter.io/ios/app/rehancer-ai-photo-enhancer/id1466206341) | 3.7 (18,326) | Free | Photo & Video |
| [Eye Color Changer -Enhance Eye](https://appshunter.io/ios/app/eye-color-changer-enhance-eye/id1142966322) | 2.7 (493) | Free | Photo & Video |
| [Photo Scan : Restore Old Pics](https://appshunter.io/ios/app/photo-scan-restore-old-pics/id1664439240) | 4.0 (16) | Free | Photo & Video |
| [UpRes: AI Photo Video Enhancer](https://appshunter.io/ios/app/upres-ai-photo-video-enhancer/id6739590673) | 4.7 (201) | Free | Photo & Video |
| [Line Art -  line drawing](https://appshunter.io/ios/app/line-art-line-drawing/id6446051027) | — | Free | Photo & Video |
| [Wonderfix: Blurry Photo Fixer](https://appshunter.io/ios/app/wonderfix-blurry-photo-fixer/id1625039856) | 4.0 (188) | Free | Photo & Video |

## More apps by Amir Dorazahi

- [FaceMaxx](https://appshunter.io/ios/app/facemaxx/id6739744870)
- [Swift Photo Ai](https://appshunter.io/ios/app/swift-photo-ai/id6739970788)
- [QuickVidAI - Create Ai Videos](https://appshunter.io/ios/app/quickvidai-create-ai-videos/id6746134325)
- [RetroRevive Restore old photos](https://appshunter.io/ios/app/retrorevive-restore-old-photos/id6746372483)
- [Instant Interiors](https://appshunter.io/ios/app/instant-interiors/id6746957311)

All apps by Amir Dorazahi: https://appshunter.io/developer/1786826386

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*