# 나이스OTP vs G

The clearest difference is in-app purchases: 나이스OTP at none against G's 3. 나이스OTP also leads on review sentiment (24% vs 4%). G's advantage is update cadence (fortnightly vs every 14 months). On price, ads, monetization model and device support there is nothing between them.

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

나이스OTP ships an update every 14 months, G fortnightly. The most recent releases landed on October 29, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 나이스OTP | G |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/otp/id1454181801/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **23.8% of reviews** | 4.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 60 MB | 101 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [한국교육학술정보원](https://appshunter.io/developer/376298432) | [Bong Chul Koo](https://appshunter.io/developer/1471933281) |

## What reviewers say

### 나이스OTP

[App page](https://appshunter.io/ios/app/otp/id1454181801)

This mobile service provides one-time passwords for user authentication within the 나이스 (NICE) system. It ensures secure access for educational and administrative purposes.

**Highlights:** One-time password generation, Secure user authentication, NICE system integration, Mobile convenience

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

**In-app purchases:** none


### G

[App page](https://appshunter.io/ios/app/g-school/id1594527906)

This mobile player allows users to conveniently access and watch educational lectures anytime, anywhere. It offers various playback options, including streaming and downloading, with features like speed control, bookmarking, and screen rotation.

**Highlights:** Mobile lecture player, Stream or download lectures, Adjust playback speed, Bookmark lecture sections, Screen rotation and 10-second skip, Brightness and volume control, Download management

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Actuality of speech content | $69.99 | one-time |
| (3-11월) 임용독존 모의고사 패키지 | $84.99 | one-time |
| (1-4월) 이론과정 패키지(마운용 전공국어) | $299.99 | one-time |


## Frequently asked questions

### Is 나이스OTP free?

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

### Is G free?

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

### Do 나이스OTP or G have ads?

Neither 나이스OTP nor G shows ads.

### Which is updated more often, 나이스OTP or G?

나이스OTP ships an update every 14 months, and G fortnightly. Most recently, 나이스OTP was updated on October 29, 2026 and G on October 15, 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.*