# TIZA vs Problems

The clearest difference is in-app purchases: Problems at none against TIZA's 3. Problems also leads on device support. TIZA's advantage is iOS requirement (12.0 vs 17.0). On price there is nothing between them.

Both are free to download. TIZA sells 3 in-app purchases, starting at $9.99 per month. Problems asks for nothing beyond the download.

## The numbers

| Metric | TIZA | Problems |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Every 2 weeks |
| Size | 169 MB | 10 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Franklin Lingga Anak Abun](https://appshunter.io/developer/1729052248) | [Exact Science](https://appshunter.io/developer/6773016718) |

## What reviewers say

### TIZA

[App page](https://appshunter.io/ios/app/tiza/id6477348260)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited TIZA Loops | $9.99 | per month |
| 150 Tiza Loops | $5.99 | one-time |
| 300 Tiza Loops | $7.99 | one-time |


### Problems

[App page](https://appshunter.io/ios/app/problems-math-and-logic/id6773016716)

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

**In-app purchases:** none


## Frequently asked questions

### Is TIZA free?

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

### Is Problems free?

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

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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.*