PreGrade Ultra
No in-app products collected for this app.
| Rating | |||
|---|---|---|---|
| United States | 67%2 | 5.00 | |
| Canada | 33%1 | 5.00 | |
| United Arab Emirates | <1%0 | — | |
| Afghanistan | <1%0 | — | |
| Antigua And Barbuda | <1%0 | — | |
| Anguilla | <1%0 | — | |
| Albania | <1%0 | — | |
| Armenia | <1%0 | — | |
| Angola | <1%0 | — | |
| Argentina | <1%0 | — |
Description
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**
Measure left/right and top/bottom centering ratios
Millimeter-level border measurements
Front and back analysis with separate thresholds
Visual edge detection confirms your guide placement
Detect clockwise and counterclockwise print tilt
**7 GRADING COMPANIES**
Centering grades from PSA, BGS, CGC, TAG, SGC, ACE, and AGS. Every company has different thresholds — see which grade your card may qualify for at each one, with full threshold breakdowns.
**CROSS-GRADE OPPORTUNITIES**
Already have a graded card? See which companies may give a higher centering grade. The Understand tab highlights your potential best market-value grade at a glance.
**MARKET PRICING**
Look up active eBay listings for any Pokémon card. See current asking prices for raw and graded cards across most major grading companies.
**BUILT FOR COLLECTORS, NOT ADVERTISERS**
No ads. No banner spam. PreGrade Ultra is a tool built by a collector, for collectors.
3 free grading sessions included. Unlock unlimited access with a one-time Pro upgrade.
**IMPORTANT:** PreGrade Ultra measures centering only. Card grading involves surface condition, corners, edges, and print quality — factors that cannot be assessed from a photo. Results are estimates and are not guaranteed to match any grading company's official assessment.
PreGrade Ultra is not affiliated with, endorsed by, or sponsored by any grading company. Pokémon is a trademark of Nintendo, Creatures Inc., and GAME FREAK Inc. eBay is a trademark of eBay Inc. All company names and grading scales are trademarks of their respective owners.