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#11 i Top Grossing Apps > Udviklerværktøjer
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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**
- 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.
Hvad er nyt i denne version? (5.0)
Bug fixes
Info
Udvikler
Kategorier
Version
5.0
Størrelse
3,1 MB
Game Center
Nej
VPP Device Licensing
Ja
Vurdering
Alder: 4+
Kompatibilitet
iOS 26.4 eller senere
Enheder
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2. generation), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3. generation), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, iPhone 17e, iPad (5. generation) Wi-Fi, iPad (5. generation) Wi-Fi + Cellular, iPad (6. generation) Wi-Fi, iPad (6. generation) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9,7"), iPad Pro (9,7") (Cellular), iPad Pro 12,9" (2. generation), iPad Pro 12,9" (2. generation) Wi-Fi + Cellular, iPad Pro (10,5"), iPad Pro (10,5") Wi-Fi + Cellular, iPad Pro (11"), iPad Pro (11") Wi-Fi + Cellular, iPad Pro 12,9" (3. generation), iPad Pro 12,9" (3. generation) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (3. generation), iPad Air (3. generation) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5. generation), iPad mini (5. generation) Wi-Fi + Cellular, iPad (7. generation) Wi-Fi + Cellular, iPad Pro 11" (2. generation), iPad Pro 11" (2. generation) Wi-Fi + Cellular, iPad Pro 12,9" (4. generation), iPad Pro 12,9" (4. generation) Wi-Fi + Cellular, iPad Air (4. generation) (Wi-Fi), iPad Air (4. generation) (Wi-Fi + Cellular), iPad (8. generation) Wi-Fi, iPad (8. generation) Wi-Fi + Cellular, iPad Pro 11" (3. generation), iPad Pro 11" (3. generation) Wi-Fi + Cellular, iPad Pro 12,9" (5. generation), iPad Pro 12,9" (5. generation) Wi-Fi + Cellular, iPad (9. generation), iPad (9. generation) Wi-Fi + Cellular, iPad mini (6. generation), iPad mini (6. generation) Wi-Fi + Cellular, iPad Air (5. generation), iPad Air (5. generation) Wi-Fi + Cellular, iPad Pro 11" (4. generation), iPad Pro 11" (4. generation) Wi-Fi + Cellular, 12,9" iPad Pro (6. generation), 12,9" iPad Pro (6. generation) Wi-Fi + Cellular, iPad (10. generation), iPad (10. generation) Wi-Fi + Cellular, iPad Air 11" (M2) Wi-Fi, iPad Air 13" (M2) Wi-Fi, iPad Air 13" (M2) Wi-Fi + Cellular, iPad Pro 11" (M4) Wi-Fi, iPad Pro 11" (M4) Wi-Fi + Cellular, iPad Pro 13" (M4) Wi-Fi, iPad Pro 13" (M4) Wi-Fi + Cellular, iPad mini (A17 Pro) Wi-Fi, iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16) Wi-Fi, iPad (A16) Wi-Fi + Cellular, iPad Air 11" (M3) Wi-Fi, iPad Air 11" (M3) Wi-Fi + Cellular, iPad Air 13" (M3) Wi-Fi, iPad Air 13" (M3) Wi-Fi + Cellular, iPad Pro 11" (M5) Wi-Fi, iPad Pro 11" (M5) Wi-Fi + Cellular, iPad Pro 13" (M5) Wi-Fi, iPad Pro 13" (M5) Wi-Fi + Cellular, iPad Air11M4, iPad Air11M4Cellular, iPad Air13M4, iPad Air13M4Cellular, iPod touch (6. generation), iPod touch (7. generation)
Sprog
engelsk
App Store: Vurderinger
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App Store: Anmeldelser
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