# 2DUB Learning vs StatRedPen

The clearest difference is in-app purchases: 2DUB Learning at none against StatRedPen's 2. 2DUB Learning also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). StatRedPen's advantage is update cadence (every 2 days vs every 4 weeks). On price and device support there is nothing between them.

Both are free to download. StatRedPen sells 2 one-off in-app purchases. 2DUB Learning asks for nothing beyond the download.

2DUB Learning ships an update every 4 weeks, StatRedPen every 2 days. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 2DUB Learning | StatRedPen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/2dub-learning/id1576313157/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 124 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [2MEU Inc.](https://appshunter.io/developer/1244037111) | [丽佳 施](https://appshunter.io/developer/1894580777) |

## What reviewers say

### 2DUB Learning

[App page](https://appshunter.io/ios/app/2dub-learning/id1576313157)

Engage in educational activities provided by your language teacher through a class code. This app facilitates interactive learning experiences for students. Contact support via email for any login or technical issues.

**Highlights:** Class code activities, Language teacher assignments, Interactive learning, Student engagement, Direct support contact

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

**In-app purchases:** none


### StatRedPen

[App page](https://appshunter.io/ios/app/statredpen-stats-exam-grader/id6794589846)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 완전판 해금 | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is 2DUB Learning free?

2DUB Learning is free to download, with no in-app purchases.

### Is StatRedPen free?

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

### Do 2DUB Learning or StatRedPen have ads?

StatRedPen shows ads; 2DUB Learning does not.

### Which is updated more often, 2DUB Learning or StatRedPen?

2DUB Learning ships an update every 4 weeks, and StatRedPen every 2 days. Most recently, 2DUB Learning was updated on October 17, 2026 and StatRedPen on October 21, 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.*