# SleepSafe vs Lung

The clearest difference is in-app purchases: Lung at none against SleepSafe's 2. Lung also leads on update cadence (every 3 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SleepSafe sells 2 in-app purchases, starting at $6.99 per month. Lung asks for nothing beyond the download.

SleepSafe ships an update every 2 weeks, Lung every 3 days. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SleepSafe | Lung |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/sleepsafe-nightmare-relief/id6470836919/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 51 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Oliver Lerstøl Hebnes](https://appshunter.io/developer/1714300498) | [Robert Lenart](https://appshunter.io/developer/1872991274) |

## What reviewers say

### SleepSafe

[App page](https://appshunter.io/ios/app/sleepsafe-nightmare-relief/id6470836919)

This app uses your Apple Watch to detect and gently interrupt nightmares, sleepwalking, and night terrors. It offers features like sleep talking recording, personalized sleep analysis, and stress monitoring to help you achieve calmer, more restful sleep.

**Highlights:** Real-time nightmare detection, Sleep talking recorder, Gentle haptic interventions, Night terror protection, Comprehensive sleep analysis, Stress & anxiety monitoring

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $6.99 | per month |
| Yearly Premium | $44.99 | per year |


### Lung

[App page](https://appshunter.io/ios/app/lung/id6758455227)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SleepSafe free?

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

### Is Lung free?

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

### Do SleepSafe or Lung have ads?

Neither SleepSafe nor Lung shows ads.

### Which is updated more often, SleepSafe or Lung?

SleepSafe ships an update every 2 weeks, and Lung every 3 days. Most recently, SleepSafe was updated on October 25, 2026 and Lung on October 11, 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.*