# Mendeleev.me vs Colba Ustoz

The clearest difference is in-app purchases: Colba Ustoz at none against Mendeleev.me's 4. Mendeleev.me's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Mendeleev.me sells 4 one-off in-app purchases. Colba Ustoz asks for nothing beyond the download.

## The numbers

| Metric | Mendeleev.me | Colba Ustoz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (24 ratings)](https://appshunter.io/ios/app/mendeleevme/id1601845870/reviews)** | — |
| Number of ratings | **24** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Paid | — |
| Size | 210 MB | 32 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AGILE FLEX TECH SRL](https://appshunter.io/developer/1601049602) | [ONESAFF, MCHJ](https://appshunter.io/developer/6793073967) |

## What reviewers say

### Mendeleev.me

[App page](https://appshunter.io/ios/app/mendeleevme/id1601845870)

Explore the periodic table with detailed element information, interactive chemistry experiments, and atom structure simulations. This educational tool offers multi-language support, downloadable resources, and studying analytics to enhance learning. Discover hidden secrets and enjoy a cohesive, functional design.

**Highlights:** Virtual chemistry laboratory, Detailed element information, Atom structure simulations, Downloadable element PDFs, Studying analytics, Multi-language support, Interactive experiments

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SPECIAL OFFER! | $9.99 | one-time |
| The Chernobyl Experiments Pack | $9.99 | one-time |
| The Explosive Experiments Pack | $9.99 | one-time |
| The Metals Experiments Pack | $9.99 | one-time |


### Colba Ustoz

[App page](https://appshunter.io/ios/app/colba-ustoz/id6787070841)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mendeleev.me free?

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

### Is Colba Ustoz free?

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

### Do Mendeleev.me or Colba Ustoz have ads?

Neither Mendeleev.me nor Colba Ustoz shows ads.

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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.*