# CLS 4.0  LEARNER vs Bus

The clearest difference is update cadence: CLS 4.0  LEARNER at every 2 weeks against Bus's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CLS 4.0  LEARNER ships an update every 2 weeks, Bus every 6 weeks. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | CLS 4.0  LEARNER | Bus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/cls-40-learner/id1585547011/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 40 MB | 47 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [HUONG VIET CO., LTD](https://appshunter.io/developer/1466757923) | [Nguyen Vinh](https://appshunter.io/developer/1274903069) |

## What reviewers say

### CLS 4.0  LEARNER

[App page](https://appshunter.io/ios/app/cls-40-learner/id1585547011)

This application is designed for learners within the CLS.VN system, version 4.0. It allows users to access assigned courses, take assigned exams, and view assigned learning paths.

**Highlights:** Access assigned courses, Take assigned exams, View assigned learning paths

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

**In-app purchases:** none


### Bus

[App page](https://appshunter.io/ios/app/bus/id1603972490)

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

**In-app purchases:** none


## Frequently asked questions

### Is CLS 4.0  LEARNER free?

CLS 4.0  LEARNER is free to download, with no in-app purchases.

### Is Bus free?

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

### Do CLS 4.0  LEARNER or Bus have ads?

Neither CLS 4.0  LEARNER nor Bus shows ads.

### Which is updated more often, CLS 4.0  LEARNER or Bus?

CLS 4.0  LEARNER ships an update every 2 weeks, and Bus every 6 weeks. Most recently, CLS 4.0  LEARNER was updated on September 30, 2026 and Bus on September 29, 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.*