# Cerebra vs DevPrep

The clearest difference is ads: DevPrep at none against Cerebra's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Cerebra sells 6 in-app purchases, starting at $3.99 per month and DevPrep sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Cerebra | DevPrep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Size | 88 MB | 25 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rich Atitsusi](https://appshunter.io/developer/1591081544) | [Shohruxbek Atavullayev](https://appshunter.io/developer/1859528937) |

## What reviewers say

### Cerebra

[App page](https://appshunter.io/ios/app/cerebra-ai-study-companion/id6756488236)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Pro | $3.99 | per month |
| Study Master | $7.99 | per month |
| 25 Credits | $2.99 | one-time |
| 100 Credits | $8.99 | one-time |
| 300 Credits | $19.99 | one-time |
| 500 Credits | $29.99 | one-time |


### DevPrep

[App page](https://appshunter.io/ios/app/devprep-coding-interview-prep/id6775566429)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Dart | $12.99 | one-time |
| Unlock JavaScript | $12.99 | one-time |
| Unlock Python | $12.99 | one-time |
| Unlock Swift | $12.99 | one-time |


## Frequently asked questions

### Is Cerebra free?

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

### Is DevPrep free?

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

### Do Cerebra or DevPrep have ads?

Cerebra shows ads; DevPrep does not.

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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.*