# K12 Class vs Cldbus

The clearest difference is rating: K12 Class at 5.0 against Cldbus's 2.1. Cldbus's advantage is update cadence (every 11 days vs every 2 months) and ratings volume (11 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

K12 Class holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: Cldbus has 11 ratings behind it against 1, so its average is the more settled of the two.

K12 Class ships an update every 2 months, Cldbus every 11 days. The most recent releases landed on June 1, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | K12 Class | Cldbus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/k12-class/id6471573229/reviews)** | [2.1 (11 ratings)](https://appshunter.io/ios/app/cldbus/id6479736598/reviews) |
| Number of ratings | 1 | **11** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Free | Free |
| Size | 20 MB | 189 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen Netinfo Technology Co., Ltd.](https://appshunter.io/developer/1439296368) | [DONGGUAN LULUSHUN ELECTRONIC SCIENCE & TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1726519998) |

## What reviewers say

### K12 Class

[App page](https://appshunter.io/ios/app/k12-class/id6471573229)

Facilitates cross-platform screen mirroring and interaction between devices. Enables enhanced interactivity and can be used alongside other collaboration tools.

**Highlights:** Cross-platform connectivity, Two-way screen mirroring, Enhanced interactivity, Simultaneous use with IdeaHub

**In-app purchases:** none


### Cldbus

[App page](https://appshunter.io/ios/app/cldbus/id6479736598)

Manage and monitor intelligent devices like door locks, cameras, and doorbells remotely. Enjoy real-time viewing, two-way audio, and share device access with family members. Configure device settings with ease.

**Highlights:** Intelligent device support (door locks, cameras, doorbells), Remote real-time monitoring, Two-way voice intercom, Device sharing and remote authorization, Configuration settings for devices

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

**In-app purchases:** none


## Frequently asked questions

### Is K12 Class free?

K12 Class is free to download, with no in-app purchases.

### Is Cldbus free?

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

### Which has better reviews, K12 Class or Cldbus?

K12 Class is rated higher. K12 Class averages 5.0 out of 5 from 1 ratings, while Cldbus averages 2.1 from 11 ratings.

### Do K12 Class or Cldbus have ads?

Neither K12 Class nor Cldbus shows ads.

### Which is updated more often, K12 Class or Cldbus?

K12 Class ships an update every 2 months, and Cldbus every 11 days. Most recently, K12 Class was updated on June 1, 2026 and Cldbus on September 14, 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.*