# Numas Study vs Chemical Equations Trainer

The clearest difference is update cadence: Numas Study at every 9 days against Chemical Equations Trainer's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Numas Study sells 2 in-app purchases, starting at $4.99 per month and Chemical Equations Trainer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Numas Study ships an update every 9 days, Chemical Equations Trainer every 3 weeks. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Numas Study | Chemical Equations Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 14 MB | 12 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Matteo Achille Castiglioni](https://appshunter.io/developer/1781510855) | [Alexander Mehanic](https://appshunter.io/developer/1888807545) |

## What reviewers say

### Numas Study

[App page](https://appshunter.io/ios/app/numas-study/id6766319208)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numas Study Pro | $4.99 | per month |
| Numas Study Pro | $34.99 | per year |


### Chemical Equations Trainer

[App page](https://appshunter.io/ios/app/chemical-equations-trainer/id6797987873)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


## Frequently asked questions

### Is Numas Study free?

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

### Is Chemical Equations Trainer free?

Chemical Equations Trainer is free to download, with in-app purchases available.

### Do Numas Study or Chemical Equations Trainer have ads?

Neither Numas Study nor Chemical Equations Trainer shows ads.

### Which is updated more often, Numas Study or Chemical Equations Trainer?

Numas Study ships an update every 9 days, and Chemical Equations Trainer every 3 weeks. Most recently, Numas Study was updated on October 17, 2026 and Chemical Equations Trainer on October 18, 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.*