# Fermi Practice Drill with AI vs なぜログ

The clearest difference is in-app purchases: なぜログ at none against Fermi Practice Drill with AI's 1. なぜログ also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Fermi Practice Drill with AI sells 1 in-app purchase, starting at $5.99 per month. なぜログ asks for nothing beyond the download.

## The numbers

| Metric | Fermi Practice Drill with AI | なぜログ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Size | 21 MB | 3 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuto Inagaki](https://appshunter.io/developer/1733484400) | [Non Kudo](https://appshunter.io/developer/1890455917) |

## What reviewers say

### Fermi Practice Drill with AI

[App page](https://appshunter.io/ios/app/fermi-practice-drill-with-ai/id6748893807)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FerminPro | $5.99 | per month |


### なぜログ

[App page](https://appshunter.io/ios/app/id6767964571)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fermi Practice Drill with AI free?

Fermi Practice Drill with AI is free to download, with in-app purchases available.

### Is なぜログ free?

なぜログ is free to download, with no in-app purchases.

### Do Fermi Practice Drill with AI or なぜログ have ads?

Fermi Practice Drill with AI shows ads; なぜログ does not.

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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.*