# QTmobileアプリ vs CorrectON

The clearest difference is ads: QTmobileアプリ at none against CorrectON's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on May 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | QTmobileアプリ | CorrectON |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Size | 6 MB | 8 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [QTnet, Inc.](https://appshunter.io/developer/813467799) | [Video Research Ltd](https://appshunter.io/developer/540286603) |

## What reviewers say

### QTmobileアプリ

[App page](https://appshunter.io/ios/app/qtmobile/id1217678573)

**In-app purchases:** none


### CorrectON

[App page](https://appshunter.io/ios/app/correcton/id1502335455)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QTmobileアプリ free?

QTmobileアプリ is free to download, with no in-app purchases.

### Is CorrectON free?

CorrectON is free to download, with no in-app purchases.

### Do QTmobileアプリ or CorrectON have ads?

CorrectON shows ads; QTmobileアプリ does not.

### Which is updated more often, QTmobileアプリ or CorrectON?

QTmobileアプリ ships an update every 3 months, and CorrectON every 3 months. Most recently, QTmobileアプリ was updated on May 17, 2026 and CorrectON on October 18, 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.*