# Instant Card Grading vs Card Centering Calculator

The clearest difference is rating: Card Centering Calculator at 4.4 against Instant Card Grading's 3.5. Card Centering Calculator also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 4 months). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Instant Card Grading sells 1 one-off in-app purchase and Card Centering Calculator sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Card Centering Calculator holds the better App Store score, 4.4 against 3.5. Both are backed by a comparable volume of ratings — 19 and 60 respectively. Written reviews point the same way: 29% of Instant Card Grading's written reviews are positive against 33% of Card Centering Calculator's.

Instant Card Grading ships an update every 4 months, Card Centering Calculator every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Instant Card Grading | Card Centering Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (19 ratings)](https://appshunter.io/ios/app/instant-card-grading/id6469464438/reviews) | **[4.4 (60 ratings)](https://appshunter.io/ios/app/card-centering-calculator-ccc/id6745336791/reviews)** |
| Number of ratings | 19 | **60** |
| Positive reviews | 28.6% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 28 MB | 18 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [12 Triangles LLC](https://appshunter.io/developer/1249863049) | [Arda Sen](https://appshunter.io/developer/1670665250) |

## What reviewers say

### Instant Card Grading

[App page](https://appshunter.io/ios/app/instant-card-grading/id6469464438)

Analyze the centering of your trading cards instantly and accurately. This tool provides professional-quality pre-grading analysis to help you decide which cards to submit for official grading, saving you time and money.

**Highlights:** Instant centering analysis, Free pre-grading tool, Professional-grade accuracy, Works with all trading cards, Easy-to-use interface, Save and track cards

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Card Centering Calculator

[App page](https://appshunter.io/ios/app/card-centering-calculator-ccc/id6745336791)

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.

**Highlights:** Accurate centering measurements, Automatic border detection, Manual guide adjustments, Compare potential grades, Save and manage analyzed cards, Image import via camera or photos

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Yearly Subscription | $19.99 | per year |


## Frequently asked questions

### Is Instant Card Grading free?

Instant Card Grading is free to download, with in-app purchases available.

### Is Card Centering Calculator free?

Card Centering Calculator is free to download, with in-app purchases available.

### Which has better reviews, Instant Card Grading or Card Centering Calculator?

Card Centering Calculator is rated higher. Instant Card Grading averages 3.5 out of 5 from 19 ratings, while Card Centering Calculator averages 4.4 from 60 ratings.

### Do Instant Card Grading or Card Centering Calculator have ads?

Instant Card Grading shows ads; Card Centering Calculator does not.

### Which is updated more often, Instant Card Grading or Card Centering Calculator?

Instant Card Grading ships an update every 4 months, and Card Centering Calculator every 2 weeks. Most recently, Instant Card Grading was updated on November 3, 2026 and Card Centering Calculator on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*