# Compatible? vs Psychology

The clearest difference is update cadence: Psychology at every 10 days against Compatible?'s every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Compatible? sells 6 one-off in-app purchases and Psychology sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Compatible? ships an update every 3 months, Psychology every 10 days. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Compatible? | Psychology |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 54 MB | 224 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [F.R. - CUIDADOS DE SAUDE, LDA](https://appshunter.io/developer/1568299411) | [Man Hung Sun](https://appshunter.io/developer/1471605573) |

## What reviewers say

### Compatible?

[App page](https://appshunter.io/ios/app/compatible/id1596635653)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 Coins | $0.29 | one-time |
| 50 Coins | $0.49 | one-time |
| 100 Coins | $0.79 | one-time |
| Ads Off 3 days | $1.49 | one-time |
| Ads Off for 1 week | $2.49 | one-time |
| Ads Off 1 month | $4.49 | one-time |


### Psychology

[App page](https://appshunter.io/ios/app/psychology-careless/id1661528859)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| upgrade | $0.99 | one-time |


## Frequently asked questions

### Is Compatible? free?

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

### Is Psychology free?

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

### Do Compatible? or Psychology have ads?

Neither Compatible? nor Psychology shows ads.

### Which is updated more often, Compatible? or Psychology?

Compatible? ships an update every 3 months, and Psychology every 10 days. Most recently, Compatible? was updated on October 11, 2026 and Psychology on October 24, 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.*