# 531 photo converter — resize & pad photo

> resize & pad photo (iPhone/iPad app by AKIHIKO YOSHIDA.)

- Source: https://appshunter.io/ios/app/531-photo-converter/id6759724253 (this page in markdown: same URL + `.md`)
- Developer: [AKIHIKO YOSHIDA](https://appshunter.io/developer/1877362692)
- Category: Photo & Video, Utilities
- Price: $0.49
- Age rating: 4+
- Requires: iOS 18.4 · 1 MB
- Languages: American English, Japanese
- Released: 2026-03-02
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/531-photo-converter/id6759724253/reviews.md

## What is 531 photo converter?

531 photo converter is a clean, fast photo resizing tool designed for Instagram-ready exports.

Unify mixed portrait and landscape photos without cutting important parts.
Add padding to align sizes naturally, or choose crop mode when you want a perfect fill.

Export lighter files with compression, apply distinctive playful filters, and process up to 10 photos at once.

No ads.
No tracking.
No accounts.
Everything runs locally on your device.

Simple. Focused. Yours.

531 photo converter は、Instagram向けの写真サイズ統一に特化したシンプルな加工ツールです。

縦長・横長が混在した写真も、切らずに「余白を足して」自然に揃えることができます。必要に応じてトリミングも選択可能。

書き出し時の圧縮でファイルを軽くし、遊び心のあるフィルターで仕上げ。最大10枚まで同時処理に対応しています。

広告なし。
トラッキングなし。
アカウント登録なし。
すべての処理は端末内で完結します。

シンプルに、快適に。

## Chart rankings

- #194 in Top Paid · Photo & Video (US App Store)


## Version history (last 1 release)

### 1.0 — 2026-03-02

No release notes.

## More apps by AKIHIKO YOSHIDA

- [531 metronome](https://appshunter.io/ios/app/531-metronome/id6759196151)

All apps by AKIHIKO YOSHIDA: https://appshunter.io/developer/1877362692

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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 2026-08-19.*