# 틈틈잇 vs 모두의 자격증

The clearest difference is in-app purchases: 틈틈잇 at none against 모두의 자격증's 1. 틈틈잇 also leads on ads (none vs shown). 모두의 자격증's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and update cadence there is nothing between them.

Both are free to download. 모두의 자격증 sells 1 one-off in-app purchase. 틈틈잇 asks for nothing beyond the download.

틈틈잇 ships an update weekly, 모두의 자격증 every 8 days. The most recent releases landed on October 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 틈틈잇 | 모두의 자격증 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | Free | — |
| Size | 29 MB | 42 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [JaeHyeon Lim](https://appshunter.io/developer/1680730749) | [woosik choi](https://appshunter.io/developer/1845521022) |

## What reviewers say

### 틈틈잇

[App page](https://appshunter.io/ios/app/ai/id6757255726)

Transform idle moments into productive learning with personalized AI-generated quizzes. Daily "knowledge snacks" are delivered to your home screen, offering a fun, 5-minute way to absorb and test new information. Stay motivated with smart reminders and visual progress tracking.

**Highlights:** AI-generated personalized quizzes, Daily "knowledge snacks" on home screen, 5-minute learning sessions, Smart reminders for learning routines, Visual progress tracking and rewards, Revisit completed quizzes

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

**In-app purchases:** none


### 모두의 자격증

[App page](https://appshunter.io/ios/app/id6779944719)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $2.99 | one-time |


## Frequently asked questions

### Is 틈틈잇 free?

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

### Is 모두의 자격증 free?

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

### Do 틈틈잇 or 모두의 자격증 have ads?

모두의 자격증 shows ads; 틈틈잇 does not.

### Which is updated more often, 틈틈잇 or 모두의 자격증?

틈틈잇 ships an update weekly, and 모두의 자격증 every 8 days. Most recently, 틈틈잇 was updated on October 10, 2026 and 모두의 자격증 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.*