# CU스쿨 vs Jom Hae! (좀 해!)

The clearest difference is review sentiment: Jom Hae! (좀 해!) at 100% against CU스쿨's 38%. Jom Hae! (좀 해!) also leads on update cadence (daily vs weekly) and device support (3 vs 1). CU스쿨's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price there is nothing between them.

Both are free to download. Jom Hae! (좀 해!) sells 1 one-off in-app purchase. CU스쿨 asks for nothing beyond the download.

CU스쿨 ships an update weekly, Jom Hae! (좀 해!) daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CU스쿨 | Jom Hae! (좀 해!) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 38.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 56 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KYUHAN KIM](https://appshunter.io/developer/1290634999) | [hyeonu lee](https://appshunter.io/developer/1858238879) |

## What reviewers say

### CU스쿨

[App page](https://appshunter.io/ios/app/cu/id1503486454)

Manage staff, track attendance, and calculate payroll automatically. Streamline store operations with checklists, work logs, and expiration date reminders. Access essential HR training and business guides.

**Highlights:** Staff attendance tracking, Automatic payroll calculation, Daily checklists, Work log management, Expiration date calendar, HR and work guides

**Features:** macOS Compatibility

**In-app purchases:** none


### Jom Hae! (좀 해!)

[App page](https://appshunter.io/ios/app/jom-hae-focus-timer/id6803312438)

Build habits and stay focused with friends using this collaborative timer. Set shared goals, track progress, and receive gentle reminders to maintain your concentration sessions and reduce distractions.

**Highlights:** Shared goals, Friend accountability, Streak tracking, Calm reminders, Social motivation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |


## Frequently asked questions

### Is CU스쿨 free?

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

### Is Jom Hae! (좀 해!) free?

Jom Hae! (좀 해!) is free to download, with in-app purchases available.

### Do CU스쿨 or Jom Hae! (좀 해!) have ads?

Jom Hae! (좀 해!) shows ads; CU스쿨 does not.

### Which is updated more often, CU스쿨 or Jom Hae! (좀 해!)?

CU스쿨 ships an update weekly, and Jom Hae! (좀 해!) daily. Most recently, CU스쿨 was updated on November 3, 2026 and Jom Hae! (좀 해!) on October 31, 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.*