# Suihei Fact Sheet

| Item | Details |
|---|---|
| Product | Suihei |
| Summary | A macOS app that estimates each photo's tilt individually, rotates it level, and crops to the largest clean rectangle with no leftover corners. Rotation and crop only |
| Release date | July 21, 2026 (Mac App Store, worldwide) |
| Price | Free download + one-time in-app purchase "Unlock Exports" US$24.99 (JPY 4,000). No subscription |
| Free allowance | First 300 exported photos free, no time limit. Viewing and editing stay unlimited afterwards |
| Requirements | macOS 26.4 or later, Apple Silicon |
| Languages | English, Japanese |
| Formats | JPEG, HEIC, PNG, and major RAW formats |
| Privacy | All processing happens on-device (built-in AI, about 8.1 MB). Photos are never uploaded. App Store privacy label: "Data Not Collected" |
| Non-destructive | Originals are never modified; corrected copies are written elsewhere with EXIF preserved |
| Developer | MARGINAL GAINS INC. (Osaka, Japan; founded August 2024; CEO Mitsuhiro Inomata) |
| App Store | https://apps.apple.com/app/id6779548498 |
| Website | https://suihei.marginalgains.jp/ |
| Media contact | https://marginalgains.jp/contact/ (review promo codes available) |
