# Zerebrez vs Prepa Herbart

The clearest difference is in-app purchases: Prepa Herbart at none against Zerebrez's 4. Zerebrez's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zerebrez sells 4 in-app purchases, starting at $4.99 per month. Prepa Herbart asks for nothing beyond the download.

Zerebrez ships an update every 5 days, Prepa Herbart every 3 weeks. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Zerebrez | Prepa Herbart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/zerebrez/id1390899545/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 2 MB |
| Requires iOS | 18.0 | **17.5** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Luis Gomez](https://appshunter.io/developer/958816622) | [ARMANDO Perez Corona](https://appshunter.io/developer/1392827893) |

## What reviewers say

### Zerebrez

[App page](https://appshunter.io/ios/app/zerebrez/id1390899545)

Prepare for entrance exams with a fun and effective study app. Access hundreds of free questions, study by subject, review mistakes, and track your progress instantly. Get detailed explanations for every question and compare your results with other users.

**Highlights:** Hundreds of free questions, Study by subject, Review mistakes, Instant progress tracking, Detailed question explanations, Offline study mode, Exams created by teachers

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Curso Licenciatura UNAM | $4.99 | per month |
| Curso ECOEMS | $4.99 | per month |
| COMIPEMS access for one year | $9.99 | one-time |
| Licenciatura UNAM 1 año | $11.99 | one-time |


### Prepa Herbart

[App page](https://appshunter.io/ios/app/prepa-herbart/id1633903021)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zerebrez free?

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

### Is Prepa Herbart free?

Prepa Herbart is free to download, with no in-app purchases.

### Do Zerebrez or Prepa Herbart have ads?

Neither Zerebrez nor Prepa Herbart shows ads.

### Which is updated more often, Zerebrez or Prepa Herbart?

Zerebrez ships an update every 5 days, and Prepa Herbart every 3 weeks. Most recently, Zerebrez was updated on October 16, 2026 and Prepa Herbart on October 9, 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.*