Correct distortion and perspective in photos of documents, posters, and signs. Transform skewed quadrilaterals into perfect rectangles, even when taken from an angle. Edit corner points in real-time for precise results.
CorrectNoteLite by 祁庆 吴





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CorrectNoteLite is the household name in send corrections, but it's far from the only option. We track 55+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | May 2026 | ||
| 2 | Free | — | No | Yes | May 2026 | ||
| 3 | $0.99 | 1.0★ (2) | No | No | Oct 2026 | ||
| 4 | Free | — | Yes | Yes | May 2026 | ||
| 5 | Free | — | Yes | No | Oct 2026 | ||
| 6 | Free | — | No | Yes | Aug 2026 | ||
| 7 | Free | — | No | Yes | Nov 2026 | ||
| 8 | Free | — | No | Yes | May 2026 |















Correct distortion and perspective in photos of documents, posters, and signs. Transform skewed quadrilaterals into perfect rectangles, even when taken from an angle. Edit corner points in real-time for precise results.