# Speak On. vs マスタン英単語

The clearest difference is device support: Speak On. at 2 against マスタン英単語's —. Speak On. also leads on iOS requirement (15.1 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Speak On. sells 3 in-app purchases, starting at $9.99 per month and マスタン英単語 sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Speak On. ships an update every 3 weeks, マスタン英単語 every 2 weeks. The most recent releases landed on September 19, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Speak On. | マスタン英単語 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 35 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Moemi Asada](https://appshunter.io/developer/1882213512) | [Norihiro Sakamoto](https://appshunter.io/developer/1885026853) |

## What reviewers say

### Speak On.

[App page](https://appshunter.io/ios/app/speak-on/id6759998646)

This app focuses on improving English speaking fluency by encouraging longer, more detailed responses rather than just grammatical correctness. It uses AI to evaluate specific expressions and provides feedback to help users speak more confidently and elaborately.

**Highlights:** Unlimited speaking practice, AI evaluation of specific expressions, Focus on detailed and practical language, AI overall feedback, Progress visualization with scores and history

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speak On. サブスクリプション マンスリー | $9.99 | per month |
| Speak On. サブスクリプション 6ヶ月 | $49.99 | per 6 months |
| Speak On. サブスクリプション 1年 | $69.99 | per year |


### マスタン英単語

[App page](https://appshunter.io/ios/app/toeic/id6760566858)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro １ヶ月プラン | $4.99 | per month |
| Pro 年間プラン | $34.99 | per year |


## Frequently asked questions

### Is Speak On. free?

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

### Is マスタン英単語 free?

マスタン英単語 is free to download, with in-app purchases available.

### Which is updated more often, Speak On. or マスタン英単語?

Speak On. ships an update every 3 weeks, and マスタン英単語 every 2 weeks. Most recently, Speak On. was updated on September 19, 2026 and マスタン英単語 on August 27, 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.*