# KnowLedge Alarm vs Bians

The clearest difference is device support: Bians at 3 against KnowLedge Alarm's —. KnowLedge Alarm's advantage is iOS requirement (12.0 vs 15.1). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | KnowLedge Alarm | Bians |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 172 MB | 40 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 9+ |
| Developer | [Beylerbeyi Genel Güvenlik Sistemleri Ltd.Şti.](https://appshunter.io/developer/1490993898) | [BESA YAZILIM ARASTIRMA GELISTIRME SANAYI VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/1715197445) |

## What reviewers say

### KnowLedge Alarm

[App page](https://appshunter.io/ios/app/knowledge-alarm/id6449666881)

**In-app purchases:** none


### Bians

[App page](https://appshunter.io/ios/app/bians/id6471381559)

Transform your living space with dynamic lighting and atmospheric themes. Control colors, animations, and brightness to create personalized moods for any occasion. Manage all connected devices from a single, intuitive interface.

**Highlights:** Dynamic atmospheric themes, Customizable light colors and brightness, Animated lighting effects, Create and save personal themes, Manage multiple Wi-Fi connected devices, Synchronized device operation

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

**In-app purchases:** none


## Frequently asked questions

### Is KnowLedge Alarm free?

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

### Is Bians free?

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

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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.*