# Herbart vs UNOi 4

The clearest difference is device support: Herbart at 3 against UNOi 4's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Herbart ships an update every 5 weeks, UNOi 4 every 6 weeks. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Herbart | UNOi 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/unoi-4/id1473453935/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | — | Free |
| Size | 4 MB | 135 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 17+ |
| Developer | [ARMANDO Perez Corona](https://appshunter.io/developer/1392827893) | [Grupo Santillana Educacion Global, S.L.](https://appshunter.io/developer/445034184) |

## What reviewers say

### Herbart

[App page](https://appshunter.io/ios/app/herbart/id1466894356)

**Features:** macOS Compatibility

**In-app purchases:** none


### UNOi 4

[App page](https://appshunter.io/ios/app/unoi-4/id1473453935)

This app transforms classroom management by centering the student and breaking down subject barriers. It fosters learning through engagement and practical application, aiming to create transformative citizens.

**Highlights:** Student-centered learning, Interdisciplinary approach, Learning through engagement, Practical application focus, Classroom management transformation

**In-app purchases:** none


## Frequently asked questions

### Is Herbart free?

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

### Is UNOi 4 free?

UNOi 4 is free to download, with no in-app purchases.

### Do Herbart or UNOi 4 have ads?

Neither Herbart nor UNOi 4 shows ads.

### Which is updated more often, Herbart or UNOi 4?

Herbart ships an update every 5 weeks, and UNOi 4 every 6 weeks. Most recently, Herbart was updated on October 8, 2026 and UNOi 4 on October 16, 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.*