# Cygnus Astro vs Sleep Save

The clearest difference is in-app purchases: Cygnus Astro at none against Sleep Save's 2. Cygnus Astro also leads on update cadence (every 5 days vs every 6 weeks) and iOS requirement (15.1 vs 26.1). On price, ads and device support there is nothing between them.

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

Cygnus Astro ships an update every 5 days, Sleep Save every 6 weeks. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Cygnus Astro | Sleep Save |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/cygnus-astro/id6745795760/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Monetization | Free | — |
| Size | 32 MB | 24 MB |
| Requires iOS | **15.1** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Ventura](https://appshunter.io/developer/1742045592) | [Sleep Save LLC](https://appshunter.io/developer/1874414969) |

## What reviewers say

### Cygnus Astro

[App page](https://appshunter.io/ios/app/cygnus-astro/id6745795760)

Control your astrophotography equipment remotely from your mobile device. This app provides a touch-friendly interface to connect, monitor, and manage your N.I.N.A. software and connected gear, simplifying your setup in the field.

**Highlights:** Remote equipment control, N.I.N.A. software integration, Mobile touch interface, Real-time exposure preview, Open-source and free

**Features:** macOS Compatibility

**In-app purchases:** none


### Sleep Save

[App page](https://appshunter.io/ios/app/sleep-save-tv-sleep-timer/id6758681205)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual | $4.99 | per month |
| Household | $12.99 | per month |


## Frequently asked questions

### Is Cygnus Astro free?

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

### Is Sleep Save free?

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

### Do Cygnus Astro or Sleep Save have ads?

Neither Cygnus Astro nor Sleep Save shows ads.

### Which is updated more often, Cygnus Astro or Sleep Save?

Cygnus Astro ships an update every 5 days, and Sleep Save every 6 weeks. Most recently, Cygnus Astro was updated on October 20, 2026 and Sleep Save 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.*