# JPQuiz vs 心電図Navi

The clearest difference is update cadence: JPQuiz at every 4 days against 心電図Navi's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. JPQuiz sells 13 one-off in-app purchases and 心電図Navi sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

JPQuiz ships an update every 4 days, 心電図Navi every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | JPQuiz | 心電図Navi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Manabu TsuTsui](https://appshunter.io/developer/1745681573) | [Takahiro Ito](https://appshunter.io/developer/6787806782) |

## What reviewers say

### JPQuiz

[App page](https://appshunter.io/ios/app/jpquiz-intensive-training/id6754965724)

Enhance your Japanese language skills with fun, multiple-choice quizzes. This app covers vocabulary, writing, and reading comprehension across beginner, intermediate, and advanced levels. It also features special problem sets for targeted practice.

**Highlights:** Vocabulary quizzes, Writing skills practice, Reading comprehension tests, Beginner, intermediate, advanced levels, Special problem sets, Multiple-choice format

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 語彙力・中級 | $1.99 | one-time |
| 文章力・中級 | $1.99 | one-time |
| 文章力・上級 | $1.99 | one-time |
| 読解力・上級 | $1.99 | one-time |
| 読解力・中級 | $1.99 | one-time |
| 日本史(難関) | $1.99 | one-time |
| 世界史(難関) | $1.99 | one-time |
| ビジネス用語 | $1.99 | one-time |
| 類義語 | $1.99 | one-time |
| 語彙力・上級 | $1.99 | one-time |
| 広告非表示 | $1.99 | one-time |
| まとめて購入(24時間限定) | $4.99 | one-time |
| まとめて購入 | $9.99 | one-time |


### 心電図Navi

[App page](https://appshunter.io/ios/app/navi/id6802314816)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| フル版（全波形解放） | $5.99 | one-time |


## Frequently asked questions

### Is JPQuiz free?

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

### Is 心電図Navi free?

心電図Navi is free to download, with in-app purchases available.

### Do JPQuiz or 心電図Navi have ads?

Neither JPQuiz nor 心電図Navi shows ads.

### Which is updated more often, JPQuiz or 心電図Navi?

JPQuiz ships an update every 4 days, and 心電図Navi every 3 weeks. Most recently, JPQuiz was updated on October 28, 2026 and 心電図Navi on October 31, 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.*