# Zygo vs Unlock Sleep

The clearest difference is in-app purchases: Unlock Sleep at none against Zygo's 2. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Zygo | Unlock Sleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (135 ratings)](https://appshunter.io/ios/app/zygo/id1564866603/reviews)** | — |
| Number of ratings | **135** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 101 MB | 45 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Swimmersive Co](https://appshunter.io/developer/1381489863) | [Joshua Goodman](https://appshunter.io/developer/1874560471) |

## What reviewers say

### Zygo

[App page](https://appshunter.io/ios/app/zygo/id1564866603)

Access over 500 guided swim workouts paired with music. Track your progress with lap counting and a tempo trainer. Stay connected with walkie-talkie functionality and manage device settings.

**Highlights:** 500+ guided swim workouts, Music integration, Lap counting, Tempo trainer, Walkie-talkie feature, Battery level monitoring, Firmware updates

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $49.99 | per year |


### Unlock Sleep

[App page](https://appshunter.io/ios/app/unlock-sleep/id6760617044)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zygo free?

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

### Is Unlock Sleep free?

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

### Do Zygo or Unlock Sleep have ads?

Neither Zygo nor Unlock 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.*