# 잽영어 vs 라플라스수학

The clearest difference is in-app purchases: 라플라스수학 at none against 잽영어's 3. 라플라스수학 also leads on iOS requirement (13.0 vs 15.5). 잽영어's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 잽영어 sells 3 one-off in-app purchases. 라플라스수학 asks for nothing beyond the download.

잽영어 ships an update every 2 days, 라플라스수학 every 3 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 잽영어 | 라플라스수학 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 166 MB | 36 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chord on Code](https://appshunter.io/developer/1602483788) | [Bnz Inc](https://appshunter.io/developer/1602520806) |

## What reviewers say

### 잽영어

[App page](https://appshunter.io/ios/app/id6473166674)

This app helps middle and high school students prepare for English exams by providing tools to study specific texts. It offers features like automatic translation, fill-in-the-blank exercises, and vocabulary practice.

**Highlights:** Upload custom study texts, Automatic translation, Fill-in-the-blank sentence generator, Automatic idiom finder, Personalized vocabulary list, Speech practice, Progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zap Mini - 50크레딧 제공 | $1.99 | one-time |
| Zap Lite - 100크레딧 제공 | $3.99 | one-time |
| Zap Pro - 200크레딧 제공 | $4.99 | one-time |


### 라플라스수학

[App page](https://appshunter.io/ios/app/id6761508069)

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

**In-app purchases:** none


## Frequently asked questions

### Is 잽영어 free?

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

### Is 라플라스수학 free?

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

### Do 잽영어 or 라플라스수학 have ads?

Neither 잽영어 nor 라플라스수학 shows ads.

### Which is updated more often, 잽영어 or 라플라스수학?

잽영어 ships an update every 2 days, and 라플라스수학 every 3 weeks. Most recently, 잽영어 was updated on November 8, 2026 and 라플라스수학 on October 31, 2026.

---

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