# Jamtudy vs 미션락

The clearest difference is rating: 미션락 at 5.0 against Jamtudy's 3.8. 미션락 also leads on in-app purchases (none vs 1). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Jamtudy sells 1 one-off in-app purchase. 미션락 asks for nothing beyond the download.

미션락 holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 95% of Jamtudy's written reviews are positive against 100% of 미션락's.

Jamtudy ships an update every 2 days, 미션락 every 4 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | Jamtudy | 미션락 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/jamtudy-focus-timer/id6792468060/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id6794560552/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 94.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 229 MB | 396 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Low Pie](https://appshunter.io/developer/6792468062) | [Seungju Cho](https://appshunter.io/developer/6794560554) |

## What reviewers say

### Jamtudy

[App page](https://appshunter.io/ios/app/jamtudy-focus-timer/id6792468060)

This app allows users to study together with friends by joining as cute characters and watching each other's timers in real time. It helps track daily study time and encourages focused sessions.

**Highlights:** Join friends as cute characters, Watch timers in real time, Track daily study time, Collaborative study sessions, Focus timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Donuts | $1.99 | one-time |


### 미션락

[App page](https://appshunter.io/ios/app/id6794560552)

This app helps you break free from short-form video addiction by locking selected apps and websites. It offers customizable missions like guided breathing or AI-generated quizzes before you can access them, promoting healthier digital habits.

**Highlights:** Lock apps, categories, and websites, AI quiz generation from learning materials, Temporary app unlock after mission completion, Scheduled blocking by day and time, Daily unlock limits and usage time restrictions, Track progress with mission history, streaks, and XP

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

**In-app purchases:** none


## Frequently asked questions

### Is Jamtudy free?

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

### Is 미션락 free?

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

### Which has better reviews, Jamtudy or 미션락?

미션락 is rated higher. Jamtudy averages 3.8 out of 5 from 4 ratings, while 미션락 averages 5.0 from 2 ratings.

### Do Jamtudy or 미션락 have ads?

Both Jamtudy and 미션락 show ads.

### Which is updated more often, Jamtudy or 미션락?

Jamtudy ships an update every 2 days, and 미션락 every 4 days. Most recently, Jamtudy was updated on November 6, 2026 and 미션락 on November 6, 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.*