# CBT vs CENTRO

The clearest difference is ads: CBT at none against CENTRO's shown. CBT also leads on update cadence (daily vs weekly) and iOS requirement (13.0 vs 16.4). On price, in-app purchases and device support there is nothing between them.

Both are free to download. CBT sells 1 one-off in-app purchase and CENTRO sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

CBT ships an update daily, CENTRO weekly. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | CBT | CENTRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Weekly |
| Size | 32 MB | 65 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Aibek Abdikazakh](https://appshunter.io/developer/1803990062) | [HUSSEIN GHADDAR](https://appshunter.io/developer/6774019581) |

## What reviewers say

### CBT

[App page](https://appshunter.io/ios/app/cbt-pleasure-predicting-sheet/id6755841184)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $3.99 | one-time |


### CENTRO

[App page](https://appshunter.io/ios/app/centro-nervous-system/id6774019579)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $8.99 | per month |
| Annual Plan | $69.99 | per year |


## Frequently asked questions

### Is CBT free?

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

### Is CENTRO free?

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

### Do CBT or CENTRO have ads?

CENTRO shows ads; CBT does not.

### Which is updated more often, CBT or CENTRO?

CBT ships an update daily, and CENTRO weekly. Most recently, CBT was updated on November 9, 2026 and CENTRO 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.*