# Slab Oracle vs Centrd

Slab Oracle and Centrd are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Slab Oracle sells 7 in-app purchases, starting at $3.99 per month and Centrd sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Slab Oracle | Centrd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/slab-oracle/id6761283476/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Size | 2 MB | 53 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [vincent varie](https://appshunter.io/developer/1888624274) | [Justin Logan](https://appshunter.io/developer/6788557488) |

## What reviewers say

### Slab Oracle

[App page](https://appshunter.io/ios/app/slab-oracle/id6761283476)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $3.99 | per month |
| Pro | $9.99 | per month |
| Dealer | $19.99 | per month |
| 5 Extra Scans | $4.99 | one-time |
| 10 Extra Scans | $8.99 | one-time |
| 20 Extra Scans | $14.99 | one-time |
| 50 Extra Scans | $29.99 | one-time |


### Centrd

[App page](https://appshunter.io/ios/app/centrd-card-centering-tool/id6788557486)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Centrd Premium | $3.99 | per month |
| Centrd Premium (Yearly) | $29.99 | per year |
| Supporter | $1.99 | one-time |
| Big supporter | $4.99 | one-time |
| Generous supporter | $9.99 | one-time |


## Frequently asked questions

### Is Slab Oracle free?

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

### Is Centrd free?

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

### Do Slab Oracle or Centrd have ads?

Neither Slab Oracle nor Centrd shows ads.

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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.*