# 英語発音速成攻略 vs プロンテストシリーズ

The clearest difference is ads: プロンテストシリーズ at none against 英語発音速成攻略's shown. プロンテストシリーズ also leads on update cadence (monthly vs every 6 months). 英語発音速成攻略's advantage is iOS requirement (9.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 英語発音速成攻略 sells 1 one-off in-app purchase and プロンテストシリーズ sells 10 in-app purchases, starting at $19.49 per month. Whichever you choose, the download price is not the number that matters.

英語発音速成攻略 ships an update every 6 months, プロンテストシリーズ monthly. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 英語発音速成攻略 | プロンテストシリーズ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Monthly** |
| Size | 153 MB | 29 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Otek International Inc.](https://appshunter.io/developer/318583126) | [PRONTEST Inc.](https://appshunter.io/developer/478269295) |

## What reviewers say

### 英語発音速成攻略

[App page](https://appshunter.io/ios/app/id560823627)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 有料版にアップグレード | $2.99 | one-time |


### プロンテストシリーズ

[App page](https://appshunter.io/ios/app/id1511083721)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SanseidoES_6th_licenseG | $19.49 | per month |
| SanseidoJHS_1st_licenseG | $19.49 | per month |
| SanseidoJHS_2nd_licenseG | $19.49 | per month |
| SanseidoJHS_1st_licenseG | $68.99 | per 6 months |
| SanseidoJHS_2nd_licenseG | $68.99 | per 6 months |
| SanseidoES_5th_licenseG | $91.99 | per year |
| SanseidoES_6th_licenseG | $91.99 | per year |
| SanseidoJHS_3rd_licenseG | $91.99 | per year |
| SanseidoJHS_1st_licenseG | $91.99 | per year |
| SanseidoJHS_2nd_licenseG | $91.99 | per year |


## Frequently asked questions

### Is 英語発音速成攻略 free?

英語発音速成攻略 is free to download, with in-app purchases available.

### Is プロンテストシリーズ free?

プロンテストシリーズ is free to download, with in-app purchases available.

### Do 英語発音速成攻略 or プロンテストシリーズ have ads?

英語発音速成攻略 shows ads; プロンテストシリーズ does not.

### Which is updated more often, 英語発音速成攻略 or プロンテストシリーズ?

英語発音速成攻略 ships an update every 6 months, and プロンテストシリーズ monthly. Most recently, 英語発音速成攻略 was updated on October 16, 2026 and プロンテストシリーズ 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.*