# Janus vs KnowLedge Alarm

The clearest difference is device support: Janus at 3 against KnowLedge Alarm's —. On price, in-app purchases and iOS requirement 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 | Janus | KnowLedge Alarm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Size | 94 MB | 172 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [EDS](https://appshunter.io/developer/958590126) | [Beylerbeyi Genel Güvenlik Sistemleri Ltd.Şti.](https://appshunter.io/developer/1490993898) |

## What reviewers say

### Janus

[App page](https://appshunter.io/ios/app/janus/id1350711638)

**In-app purchases:** none


### KnowLedge Alarm

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

**In-app purchases:** none


## Frequently asked questions

### Is Janus free?

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

### Is KnowLedge Alarm free?

KnowLedge Alarm 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.*