# 틈틈잇 vs 리풀 repull

The clearest difference is in-app purchases: 틈틈잇 at none against 리풀 repull's 5. 리풀 repull's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. 리풀 repull sells 5 in-app purchases, starting at $3.99 per month. 틈틈잇 asks for nothing beyond the download.

틈틈잇 ships an update weekly, 리풀 repull every 4 days. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 틈틈잇 | 리풀 repull |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 91.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free | — |
| Size | 29 MB | 118 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [JaeHyeon Lim](https://appshunter.io/developer/1680730749) | [JIINEDU](https://appshunter.io/developer/6785677963) |

## 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


### 리풀 repull

[App page](https://appshunter.io/ios/app/repull/id6785677961)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PLUS | $3.99 | per month |
| STANDARD | $17.99 | per month |
| PREMIUM | $29.99 | per month |
| 50 Acorns | $4.99 | one-time |
| 100 Acorns | $9.99 | one-time |


## Frequently asked questions

### Is 틈틈잇 free?

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

### Is 리풀 repull free?

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

### Do 틈틈잇 or 리풀 repull have ads?

Neither 틈틈잇 nor 리풀 repull shows ads.

### Which is updated more often, 틈틈잇 or 리풀 repull?

틈틈잇 ships an update weekly, and 리풀 repull every 4 days. Most recently, 틈틈잇 was updated on October 10, 2026 and 리풀 repull on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*