# 내신등급 계산기 vs 잽영어

The clearest difference is review sentiment: 잽영어 at 100% against 내신등급 계산기's 49%. 잽영어 also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). 내신등급 계산기's advantage is in-app purchases (none vs 3). On price, device support and iOS requirement there is nothing between them.

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

내신등급 계산기 ships an update every 3 weeks, 잽영어 every 2 days. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 내신등급 계산기 | 잽영어 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 49.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 98 MB | 165 MB |
| Requires iOS | 16.4 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JongHyeok Park](https://appshunter.io/developer/1453354648) | [Chord on Code](https://appshunter.io/developer/1602483788) |

## What reviewers say

### 내신등급 계산기

[App page](https://appshunter.io/ios/app/id1485566114)

Calculate your current GPA, track your progress towards a target GPA, and simulate future grades. Supports both the 2022 and 2015 Korean education curricula.

**Highlights:** GPA calculation by semester/year, Target GPA goal setting, Grade simulation for future semesters, Midterm exam grade calculation, Mock exam and CSAT minimum requirement check, College admissions data search, 9-grade system conversion

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

**In-app purchases:** none


### 잽영어

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

**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 |


## Frequently asked questions

### Is 내신등급 계산기 free?

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

### Is 잽영어 free?

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

### Do 내신등급 계산기 or 잽영어 have ads?

내신등급 계산기 shows ads; 잽영어 does not.

### Which is updated more often, 내신등급 계산기 or 잽영어?

내신등급 계산기 ships an update every 3 weeks, and 잽영어 every 2 days. Most recently, 내신등급 계산기 was updated on October 30, 2026 and 잽영어 on October 27, 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.*