# Best card centering apps (2026): tested and compared

Centering is the one grading factor you can measure exactly before you submit: PSA wants about 55/45 on the front for a 10. These are the centering tools worth using, what each one is best for, and what each costs.

Facts checked 2026-10-14. Page: https://www.cardcenteringtool.com/best/card-centering-apps

## Judged on
- Finds the card edges and print frame automatically
- Lets you correct the lines by hand
- Shows the result against PSA, BGS and CGC standards
- Goes beyond centering (grade, price)
- Platforms and price

## The picks
### 1. Midpoint: best for centering plus the full grade and price
Finds the outer edge and print frame, straightens the card and measures it, then estimates the whole grade and shows the raw and graded prices, so you can see if grading pays. iPhone, Android and web; a free web check needs no account.
- Platforms: iOS, Android, Web
- Price: Free $0; Weekly $9.99/week; 6 months $49.99; Annual $79.99/year
- Website: https://www.cardcenteringtool.com

### 2. Card Centering Calculator: best for a one-time-purchase iphone centering app
The most-rated centering-only app on the US App Store, with grades for six graders and a $4.99 one-time upgrade.
- Platforms: iOS
- Price: Free $0 (with ads); Premium $4.99 one-time
- Website: https://www.jadelizardsoftware.com/card-centering-calculator

### 3. CenterMint: best for careful line-by-line checks
Explains every line it is unsure about and shows border widths in millimetres; iPhone only.
- Platforms: iOS
- Price: Free $0 (with ads); Pro $2.99/month or $19.99/year
- Website: https://centermint.app

### 4. Centering Lab: best for a free check that keeps the photo in your browser
No account, no upload, and it publishes its own accuracy test.
- Platforms: Web
- Price: Free $0, no account
- Website: https://centeringlab.com

### 5. PriceCharting: best for a quick check next to a price guide
Its web calculator gives a centering grade estimate, though it needs clear borders and ignores corners and edges.
- Platforms: iOS, Android, Web
- Price: Free account $0; Collector $6/month or $59/year; Legendary $49/month
- Website: https://www.pricecharting.com

## Compared
| Feature | Midpoint | Card Centering Calculator | CenterMint | Centering Lab | PriceCharting |
| --- | --- | --- | --- | --- | --- |
| Measures centering from a photo | Yes (automatic outer edge + print frame, 8 handles, ratios and mm) | Yes (automatic or manual guides; six graders) | Yes (automatic on raw cards; manual for sleeves and slabs) | Yes (engine proposes lines, you confirm; photo stays in the browser) | Partly (web calculator; centering only, needs clear borders) |
| Estimates the grade (corners, edges, surface) | Yes (PSA, BGS, CGC and TAG estimates with subgrades) | No (centering only, by its own listing) | No (centering only, by its own FAQ) | No (centering ceilings only, by its own description) | No |
| Graded prices (PSA, BGS, CGC…) | Yes (PSA, CGC, BGS, SGC, TAG by grade) | Not stated | Not stated | Not stated | Yes |
| Identifies a card from a photo | Yes | Not stated | Not stated | Not stated | Yes |
| Bulk scanning | Yes (up to 200 cards, or one photo of a whole binder page) | Not stated | Yes (Pro: up to 50 photos) | Not stated | Not stated |

## FAQ
### What centering do you need for a PSA 10?
About 55/45 or better on the front and 75/25 on the back, per PSA’s published standards. Midpoint’s grading-standards pages list every grader’s tolerances.

### Is a centering app accurate enough to trust?
A good photo (flat card, straight-down shot, even light) gets within a point or two. Sleeves, glare and tilted photos throw every tool off, so photograph the bare card.


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Prices are USD market values from real sold listings, refreshed daily. Measure your own copy's centering and get a grade estimate with Midpoint (https://www.cardcenteringtool.com) before paying a grading fee.