# LambLock vs QR課題チェック

The clearest difference is in-app purchases: QR課題チェック at none against LambLock's 15. QR課題チェック also leads on ads (none vs shown). LambLock's advantage is iOS requirement (16.0 vs 26.1). On price, update cadence and device support there is nothing between them.

Both are free to download. LambLock sells 11 in-app purchases, starting at $4.99 per month. QR課題チェック asks for nothing beyond the download.

LambLock ships an update weekly, QR課題チェック every 5 days. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | LambLock | QR課題チェック |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/lamblock-screen-time-control/id6478385605/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 74.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 174 MB | 1 MB |
| Requires iOS | **16.0** | 26.1 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KODO Inc.](https://appshunter.io/developer/1732661660) | [taihei yamazaki](https://appshunter.io/developer/1789299090) |

## What reviewers say

### LambLock

[App page](https://appshunter.io/ios/app/lamblock-screen-time-control/id6478385605)

This app helps you regain control of your phone usage by blocking distracting applications. It offers a unique prompt system to curb impulsive scrolling and allows you to set limits on specific apps by time, day, or schedule. Gamified elements make the process engaging and rewarding.

**Highlights:** App blocking for problem apps, Customizable time and schedule limits, Deep-breath prompt for impulsive use, Gamified progress and rewards, Clean UI with animations, Reduces weekly screen time

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dream Sheep PRO (Lite) | $4.99 | per month |
| Dream Sheep PRO (1 Week) | $4.99 | per 7 days |
| Dream Sheep PRO (Lite) | $6.99 | per month |
| Dream Sheep PRO | $19.99 | per month |
| Dream Sheep PRO (Lite) | $35.99 | per year |
| PRO | $39.99 | per year |
| Dream Sheep PRO | $39.99 | per year |
| Dream Sheep PRO(Lite) | $49.99 | per year |
| Dream Sheep PRO | $49.99 | per year |
| PRO | $79.99 | per year |
| Dream Sheep PRO | $79.99 | per year |


### QR課題チェック

[App page](https://appshunter.io/ios/app/qr/id6758517770)

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

**In-app purchases:** none


## Frequently asked questions

### Is LambLock free?

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

### Is QR課題チェック free?

QR課題チェック is free to download, with no in-app purchases.

### Do LambLock or QR課題チェック have ads?

LambLock shows ads; QR課題チェック does not.

### Which is updated more often, LambLock or QR課題チェック?

LambLock ships an update weekly, and QR課題チェック every 5 days. Most recently, LambLock was updated on October 18, 2026 and QR課題チェック on October 7, 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.*