# App M lights vs Rytmo Habit Tracker

The clearest difference is in-app purchases: App M lights at none against Rytmo Habit Tracker's 4. App M lights also leads on iOS requirement (8.0 vs 17.6). Rytmo Habit Tracker's advantage is update cadence (every 2 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Rytmo Habit Tracker sells 4 in-app purchases, starting at $2.99 per month. App M lights asks for nothing beyond the download.

App M lights ships an update every 8 months, Rytmo Habit Tracker every 2 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | App M lights | Rytmo Habit Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 3 MB | 25 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Taizhou Zhengda Decoration Lights Co,.LTD](https://appshunter.io/developer/1073525313) | [Toni Marence](https://appshunter.io/developer/1601847973) |

## What reviewers say

### App M lights

[App page](https://appshunter.io/ios/app/app-m-lights/id1296727812)

Control smart lighting sets with your iOS device. Customize colors, set timers, and group lights for various moods and functions. Supports multiple languages and up to 8 lighting sets.

**Highlights:** Bluetooth lighting control, Customizable light set names, Dual timer settings, Control up to 8 lighting sets, Music synchronization, 9 traditional light functions, Dimmer and color tuning

**Features:** macOS Compatibility

**In-app purchases:** none


### Rytmo Habit Tracker

[App page](https://appshunter.io/ios/app/rytmo-habit-tracker/id6754662563)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rytmo Plus Monthly | $2.99 | per month |
| Rytmo Premium Monthly | $4.99 | per month |
| Rytmo Plus Yearly | $24.99 | per year |
| Rytmo Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is App M lights free?

App M lights is free to download, with no in-app purchases.

### Is Rytmo Habit Tracker free?

Rytmo Habit Tracker is free to download, with in-app purchases available.

### Do App M lights or Rytmo Habit Tracker have ads?

Neither App M lights nor Rytmo Habit Tracker shows ads.

### Which is updated more often, App M lights or Rytmo Habit Tracker?

App M lights ships an update every 8 months, and Rytmo Habit Tracker every 2 days. Most recently, App M lights was updated on October 29, 2026 and Rytmo Habit Tracker on October 25, 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.*