# UNOi 4 vs Ozmira Math

The clearest difference is in-app purchases: UNOi 4 at none against Ozmira Math's 2. Ozmira Math's advantage is update cadence (every 2 weeks vs every 6 weeks) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Ozmira Math sells 2 in-app purchases, starting at $1.99 per month. UNOi 4 asks for nothing beyond the download.

UNOi 4 ships an update every 6 weeks, Ozmira Math every 2 weeks. The most recent releases landed on October 24, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | UNOi 4 | Ozmira Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/unoi-4/id1473453935/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 135 MB | 38 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Grupo Santillana Educacion Global, S.L.](https://appshunter.io/developer/445034184) | [Juan Ozuna](https://appshunter.io/developer/6773034719) |

## What reviewers say

### 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


### Ozmira Math

[App page](https://appshunter.io/ios/app/ozmira-math/id6773523969)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ozmira Math Pro | $1.99 | per month |
| Yearly Plan | $6.99 | per year |


## Frequently asked questions

### Is UNOi 4 free?

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

### Is Ozmira Math free?

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

### Do UNOi 4 or Ozmira Math have ads?

Neither UNOi 4 nor Ozmira Math shows ads.

### Which is updated more often, UNOi 4 or Ozmira Math?

UNOi 4 ships an update every 6 weeks, and Ozmira Math every 2 weeks. Most recently, UNOi 4 was updated on October 24, 2026 and Ozmira Math on September 28, 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.*