PreGrade Ultra

Name: PreGrade Ultra
Author: Michael Sorg

Michael Sorg · Developer Tools · 6mo old

Free + IAP

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PreGrade Ultra uses perspective correction to reduce the impact of camera angle on your centering measurements. **PERSPECTIVE CORRECTION** Other centering apps measure your photo as-is. If your camera is even slightly angled, your measurements can lose accuracy. PreGrade Ultra uses homography-based perspective correction to mathematically flatten your card to its true 63×88mm dimensions before measuring borders — centering analysis powered by computer vision. **PRECISION CENTERING ANALYSIS** -

Released: Apr 9, 2026
Category: Developer Tools
Content rating: 4+
Price: Free
In-app purchases: Yes

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