# Upscaler: Print & T-Shirt — Sharpen photos 4x on-device

> Sharpen photos 4x on-device (iPhone/iPad app by satoshi amasaki.)

- Source: https://appshunter.io/ios/app/upscaler-print-and-t-shirt/id6784849146 (this page in markdown: same URL + `.md`)
- Developer: [satoshi amasaki](https://appshunter.io/developer/1891268722)
- Category: Photo & Video
- Price: $1.99
- Age rating: 4+
- Requires: iOS 16.0 · 91 MB
- Released: 2026-07-16
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/upscaler-print-and-t-shirt/id6784849146/reviews.md

## What is Upscaler?

Turn low-resolution photos into print-ready, high-detail images.

Small phone photos look blurry once printed on a T-shirt or poster. This app enlarges your image 4x and rebuilds edges and detail so it stays sharp at print size.

Everything runs on your device. Your photos never leave the phone. No ads, no network. Use it without worrying about privacy.

Three steps:
1. Pick a photo
2. Tap the button
3. Save or share

It scales up to 6144px, enough resolution for real prints. A Before/After slider lets you check the result on the spot.

- Fully offline processing
- No ads, no subscriptions (one-time purchase)
- No photo collection, no tracking


## Version history (last 1 release)

### 1.0 — 2026-07-16

No release notes.

## More apps by satoshi amasaki

- [CompactCam](https://appshunter.io/ios/app/compactcam/id6761750166)
- [ノミワスレーヌ](https://appshunter.io/ios/app/id6761757464)
- [Real Soroban](https://appshunter.io/ios/app/real-soroban/id6761827077)
- [ズツウォッチ](https://appshunter.io/ios/app/id6761879273)
- [FourScan - Spy Detector](https://appshunter.io/ios/app/fourscan-spy-detector/id6761895107)
- [Enochian Keys](https://appshunter.io/ios/app/enochian-keys/id6762251166)

All apps by satoshi amasaki: https://appshunter.io/developer/1891268722

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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 2026-08-15.*