# Twilight vs Sleep Tracker

The clearest difference is in-app purchases: Twilight at none against Sleep Tracker's 2. Sleep Tracker's advantage is iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sleep Tracker sells 2 in-app purchases, starting at $4.99 per month. Twilight asks for nothing beyond the download.

Twilight ships an update every 3 weeks, Sleep Tracker every 5 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Twilight | Sleep Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 23 MB | 47 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rami Maalouf](https://appshunter.io/developer/1783932552) | [Ramazan Erikli](https://appshunter.io/developer/1789625854) |

## What reviewers say

### Twilight

[App page](https://appshunter.io/ios/app/twilight-simple-sleep-tracker/id6757098758)

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

**In-app purchases:** none


### Sleep Tracker

[App page](https://appshunter.io/ios/app/sleep-tracker-sleep-diary/id6766016682)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sleep Tracker Premium (Monthly) | $4.99 | per month |
| Sleep Tracker Premium (Yearly) | $39.99 | per year |


## Frequently asked questions

### Is Twilight free?

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

### Is Sleep Tracker free?

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

### Do Twilight or Sleep Tracker have ads?

Neither Twilight nor Sleep Tracker shows ads.

### Which is updated more often, Twilight or Sleep Tracker?

Twilight ships an update every 3 weeks, and Sleep Tracker every 5 weeks. Most recently, Twilight was updated on October 14, 2026 and Sleep Tracker on October 13, 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.*