# SlowDowning vs Polyphasic Sleep

The clearest difference is in-app purchases: SlowDowning at none against Polyphasic Sleep's 5. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Polyphasic Sleep sells 5 in-app purchases, starting at $4.99 per 7 days. SlowDowning asks for nothing beyond the download.

## The numbers

| Metric | SlowDowning | Polyphasic Sleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/polyphasic-sleep-polynap/id6746938552/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Freemium |
| Size | 1 MB | 66 MB |
| Requires iOS | **17.5** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Basil* Furrer*](https://appshunter.io/developer/1760963700) | [SALIM TANER CELIK](https://appshunter.io/developer/1799263246) |

## What reviewers say

### SlowDowning

[App page](https://appshunter.io/ios/app/slowdowning/id6670307084)

**Features:** macOS Compatibility

**In-app purchases:** none


### Polyphasic Sleep

[App page](https://appshunter.io/ios/app/polyphasic-sleep-polynap/id6746938552)

This app guides users through adopting and maintaining polyphasic sleep schedules. It offers personalized recommendations, smart alarms, and progress tracking to help users gain more control over their time and build consistent sleep routines.

**Highlights:** Personalized sleep schedule recommendations, Multiple polyphasic sleep schedule exploration, Smart alarms and nap reminders, Progress tracking for adaptation and consistency, Routine-building feedback, Explore various sleep cycles (Everyman, Uberman, etc.)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PolyNap Premium Weekly | $4.99 | per 7 days |
| PolyNap Premium Monthly | $8.99 | per month |
| Premium Annual Discount | $24.99 | per year |
| PolyNap Premium Yearly | $34.99 | per year |
| PolyNap Premium Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is SlowDowning free?

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

### Is Polyphasic Sleep free?

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

### Do SlowDowning or Polyphasic Sleep have ads?

Neither SlowDowning nor Polyphasic Sleep shows ads.

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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.*