# Sleep Paralysis vs Narcolepsy

The clearest difference is update cadence: Narcolepsy at weekly against Sleep Paralysis's every 2 weeks. Narcolepsy also leads on device support (3 vs 1). Sleep Paralysis's advantage is iOS requirement (18.0 vs 26.4). On price, ads 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.

Sleep Paralysis ships an update every 2 weeks, Narcolepsy weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sleep Paralysis | Narcolepsy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 153 MB | 14 MB |
| Requires iOS | **18.0** | 26.4 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Henry Doce](https://appshunter.io/developer/1824299271) | [TIMON SCHENKEL](https://appshunter.io/developer/1849632564) |

## What reviewers say

### Sleep Paralysis

[App page](https://appshunter.io/ios/app/sleep-paralysis-umbral/id6761346651)

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

**In-app purchases:** none


### Narcolepsy

[App page](https://appshunter.io/ios/app/narcolepsy/id6779200735)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Paralysis free?

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

### Is Narcolepsy free?

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

### Do Sleep Paralysis or Narcolepsy have ads?

Neither Sleep Paralysis nor Narcolepsy shows ads.

### Which is updated more often, Sleep Paralysis or Narcolepsy?

Sleep Paralysis ships an update every 2 weeks, and Narcolepsy weekly. Most recently, Sleep Paralysis was updated on October 24, 2026 and Narcolepsy 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.*