# Sonic Math vs 司法予備試験マスター

The clearest difference is ads: 司法予備試験マスター at none against Sonic Math's shown. Sonic Math's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Sonic Math sells 1 one-off in-app purchase and 司法予備試験マスター sells 3 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Sonic Math ships an update every 3 weeks, 司法予備試験マスター every 2 weeks. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Sonic Math | 司法予備試験マスター |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 37 MB | 12 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MASAKI CHIBA](https://appshunter.io/developer/1890488277) | [Tomocreate, Inc.](https://appshunter.io/developer/1895224165) |

## What reviewers say

### Sonic Math

[App page](https://appshunter.io/ios/app/sonic-math-mental-math-drill/id6765611618)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $1.99 | one-time |


### 司法予備試験マスター

[App page](https://appshunter.io/ios/app/id6776200213)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 月額 | $14.99 | per month |
| Pro 年額 | $89.99 | per year |
| 全問題 解放 | $39.99 | one-time |


## Frequently asked questions

### Is Sonic Math free?

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

### Is 司法予備試験マスター free?

司法予備試験マスター is free to download, with in-app purchases available.

### Do Sonic Math or 司法予備試験マスター have ads?

Sonic Math shows ads; 司法予備試験マスター does not.

### Which is updated more often, Sonic Math or 司法予備試験マスター?

Sonic Math ships an update every 3 weeks, and 司法予備試験マスター every 2 weeks. Most recently, Sonic Math was updated on September 27, 2026 and 司法予備試験マスター on September 23, 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.*