# Zen Lifestyle vs SleepEngine

The clearest difference is update cadence: Zen Lifestyle at every 9 days against SleepEngine's every 6 weeks. Zen Lifestyle also leads on iOS requirement (8.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zen Lifestyle ships an update every 9 days, SleepEngine every 6 weeks. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Zen Lifestyle | SleepEngine |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Monetization | — | Free |
| Size | 68 MB | 78 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZEN LIFESTYLE LTD](https://appshunter.io/developer/1741527947) | [Cambridge Sleep Sciences Ltd](https://appshunter.io/developer/1622392022) |

## What reviewers say

### Zen Lifestyle

[App page](https://appshunter.io/ios/app/zen-lifestyle/id6497949479)

**Features:** macOS Compatibility

**In-app purchases:** none


### SleepEngine

[App page](https://appshunter.io/ios/app/sleepengine/id6736406638)

This app uses scientifically developed sound technology to help improve sleep quality. It guides your brain through healthy sleep cycles, aiding in falling asleep faster, staying asleep longer, and waking up refreshed. Designed to retrain natural sleep patterns, it offers personalized sleep programs for a better night's rest.

**Highlights:** Scientific sound technology, Guides brain through sleep cycles, Helps fall asleep faster, Reduces waking times, Personalized sleep programs, Bluetooth connectivity to SmartPillow

**In-app purchases:** none


## Frequently asked questions

### Is Zen Lifestyle free?

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

### Is SleepEngine free?

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

### Do Zen Lifestyle or SleepEngine have ads?

Neither Zen Lifestyle nor SleepEngine shows ads.

### Which is updated more often, Zen Lifestyle or SleepEngine?

Zen Lifestyle ships an update every 9 days, and SleepEngine every 6 weeks. Most recently, Zen Lifestyle was updated on October 27, 2026 and SleepEngine on November 4, 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.*