249+ iOS apps curated and reviewed
Looking for free card centering calculator pro apps? 20 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | Yes | Aug 2026 | |
| 2 |  | Free | 4.4★ (58) | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.7★ (2.5K) | Yes | Yes | Oct 2026 | |
| 4 |  | Free | — | Yes | Yes | Aug 2026 | |
| 5 |  | Free | — | No | Yes | Aug 2026 | |
| 6 |  | Free | 4.6★ (42) | No | Yes | Oct 2026 | |
| 7 |  | Free | 4.5★ (10) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.9★ (18) | No | Yes | Oct 2026 |
This app helps trading card collectors accurately measure card centering for professional grading. It offers automatic border detection with manual adjustments, clear measurement results, and the ability to compare potential grades across major companies. Save and manage your analyzed cards to stop guessing and start measuring.
This app helps collectors and traders measure card centering ratios for grading. It uses AI to detect centering or allows manual adjustments for precise measurements, displaying potential grades from major companies.
