# Card Centering Pro vs OakGrade

The clearest difference is ads: Card Centering Pro at none against OakGrade's shown. OakGrade's advantage is update cadence (every 10 days vs every 4 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Card Centering Pro sells 1 one-off in-app purchase and OakGrade sells 1 in-app purchase, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Card Centering Pro ships an update every 4 weeks, OakGrade every 10 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Card Centering Pro | OakGrade |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 10 days** |
| Size | 41 MB | 67 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Matteo Giannessi](https://appshunter.io/developer/1841376781) | [JOSE LUIS AVILES CASTILLO](https://appshunter.io/developer/6789779886) |

## What reviewers say

### Card Centering Pro

[App page](https://appshunter.io/ios/app/card-centering-pro-calculator/id6778005738)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro plan | $9.99 | one-time |


### OakGrade

[App page](https://appshunter.io/ios/app/oakgrade/id6789779884)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OakGrade Pro | $12.99 | per month |


## Frequently asked questions

### Is Card Centering Pro free?

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

### Is OakGrade free?

OakGrade is free to download, with in-app purchases available.

### Do Card Centering Pro or OakGrade have ads?

OakGrade shows ads; Card Centering Pro does not.

### Which is updated more often, Card Centering Pro or OakGrade?

Card Centering Pro ships an update every 4 weeks, and OakGrade every 10 days. Most recently, Card Centering Pro was updated on October 31, 2026 and OakGrade on October 31, 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.*