# CLASSUM vs 랭디

The clearest difference is rating: 랭디 at 5.0 against CLASSUM's 3.8. 랭디 also leads on review sentiment (97% vs 63%) and update cadence (weekly vs fortnightly). CLASSUM's advantage is in-app purchases (none vs 9) and ratings volume (20 vs 2). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. 랭디 sells 9 in-app purchases, starting at $6.99 per month. CLASSUM asks for nothing beyond the download.

랭디 holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: CLASSUM has 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of CLASSUM's written reviews are positive against 97% of 랭디's.

CLASSUM ships an update fortnightly, 랭디 weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CLASSUM | 랭디 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (20 ratings)](https://appshunter.io/ios/app/classum/id1397400392/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/and-ai11/id6443480770/reviews)** |
| Number of ratings | **20** | 2 |
| Positive reviews | 63.0% of reviews | **97.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free | Free |
| Size | 85 MB | 135 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CLASSUM Co., Ltd.](https://appshunter.io/developer/1463925466) | [Langdy](https://appshunter.io/developer/1646377260) |

## What reviewers say

### CLASSUM

[App page](https://appshunter.io/ios/app/classum/id1397400392)

This platform fosters active communication and engagement between students and instructors, creating a dynamic learning environment. It offers AI-powered tools for educators and students, alongside flexible features for global collaboration and system integration.

**Highlights:** SNS-style communication, Anonymous questions, AI tutor for students and instructors, Multi-language support, Flexible curriculum design, Team activity collaboration, Interactive challenges

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

**In-app purchases:** none


### 랭디

[App page](https://appshunter.io/ios/app/and-ai11/id6443480770)

This app offers interactive language learning through native speaker-led lessons and one-on-one conversation practice. It focuses on practical, real-world expressions and provides structured learning paths with AI-powered feedback and content from popular media.

**Highlights:** 1:1 real-time conversation practice, Native speaker-led courses, AI-powered learning and feedback, Real-world expression mastery, Structured learning system (prep, class, practice, review), Content from dramas and variety shows

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic(영어) | $6.99 | per month |
| Standard(영어) | $8.99 | per month |
| 런 랭디패스 Basic 월정기 (일본어) | $8.99 | per month |
| Basic(중국어) | $8.99 | per month |
| Standard(중국어) | $9.99 | per month |
| Standard(일본어) | $9.99 | per month |
| 런 랭디패스 Plus 월정기 (영어) | $11.99 | per month |
| 런 랭디패스 Plus 월정기 (일본어) | $12.99 | per month |
| 런 랭디패스 Plus 월정기 (중국어) | $12.99 | per month |


## Frequently asked questions

### Is CLASSUM free?

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

### Is 랭디 free?

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

### Which has better reviews, CLASSUM or 랭디?

랭디 is rated higher. CLASSUM averages 3.8 out of 5 from 20 ratings, while 랭디 averages 5.0 from 2 ratings.

### Do CLASSUM or 랭디 have ads?

Neither CLASSUM nor 랭디 shows ads.

### Which is updated more often, CLASSUM or 랭디?

CLASSUM ships an update fortnightly, and 랭디 weekly. Most recently, CLASSUM was updated on October 24, 2026 and 랭디 on October 25, 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.*