# Flash Cards & Dictionary vs 心電図Navi

The clearest difference is ads: 心電図Navi at none against Flash Cards & Dictionary's shown. Flash Cards & Dictionary's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Flash Cards & Dictionary sells 4 in-app purchases, starting at $2.99 per month and 心電図Navi sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Flash Cards & Dictionary ships an update weekly, 心電図Navi every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flash Cards & Dictionary | 心電図Navi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 156 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Kengo Kosakai](https://appshunter.io/developer/1632848454) | [Takahiro Ito](https://appshunter.io/developer/6787806782) |

## What reviewers say

### Flash Cards & Dictionary

[App page](https://appshunter.io/ios/app/flash-cards-and-dictionary/id1632848452)

Create and study with custom flashcards using a built-in dictionary and quiz modes. Import from photos or books, and utilize AI for writing correction. Offers free basic features with an optional premium subscription for enhanced functionality.

**Highlights:** Create custom flashcards, Built-in dictionary lookup, 4-choice and listening quizzes, Import from photos/books, AI English writing correction, Generate mini-tests

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (1 Month) | $2.99 | per month |
| Premium Plan (Annual) | $29.99 | per year |
| Business Monthly | $29.99 | per month |
| Business annual | $299.99 | per year |


### 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 Flash Cards & Dictionary free?

Flash Cards & Dictionary 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 Flash Cards & Dictionary or 心電図Navi have ads?

Flash Cards & Dictionary shows ads; 心電図Navi does not.

### Which is updated more often, Flash Cards & Dictionary or 心電図Navi?

Flash Cards & Dictionary ships an update weekly, and 心電図Navi every 3 weeks. Most recently, Flash Cards & Dictionary was updated on October 27, 2026 and 心電図Navi on October 25, 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.*