# KiddieAlarm vs Lux

The clearest difference is update cadence: KiddieAlarm at every 6 weeks against Lux's every 4 months. Lux's advantage is iOS requirement (9.0 vs 15.0). 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.

KiddieAlarm ships an update every 6 weeks, Lux every 4 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | KiddieAlarm | Lux |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 56 MB | 4 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [APP3 BVBA](https://appshunter.io/developer/1497702457) | [Optios](https://appshunter.io/developer/1077374726) |

## What reviewers say

### KiddieAlarm

[App page](https://appshunter.io/ios/app/kiddiealarm/id1610012900)

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

**In-app purchases:** none


### Lux

[App page](https://appshunter.io/ios/app/lux/id6499190736)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KiddieAlarm free?

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

### Is Lux free?

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

### Do KiddieAlarm or Lux have ads?

Neither KiddieAlarm nor Lux shows ads.

### Which is updated more often, KiddieAlarm or Lux?

KiddieAlarm ships an update every 6 weeks, and Lux every 4 months. Most recently, KiddieAlarm was updated on November 3, 2026 and Lux on November 4, 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.*