# Cosmic Deepsky vs Lunar

The clearest difference is price: Lunar at Free against Cosmic Deepsky's $2.99. Lunar also leads on update cadence (every 4 days vs every 23 months). Cosmic Deepsky's advantage is in-app purchases (none vs 2) and iOS requirement (15.0 vs 26.0). On ads and device support there is nothing between them.

Lunar is free to download; Cosmic Deepsky costs $2.99 up front. Lunar sells 2 one-off in-app purchases. Cosmic Deepsky asks for nothing beyond the download.

Cosmic Deepsky ships an update every 23 months, Lunar every 4 days. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Cosmic Deepsky | Lunar |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/cosmic-deepsky/id6444288149/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 114 MB | 136 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Celestial Dynamics AG](https://appshunter.io/developer/997250789) | [Aphelion Engineering Pty Ltd](https://appshunter.io/developer/1896778280) |

## What reviewers say

### Cosmic Deepsky

[App page](https://appshunter.io/ios/app/cosmic-deepsky/id6444288149)

Explore the universe with a virtual telescope. Discover galaxies, star clusters, and nebulae with stunning real images and detailed information. A pocket guide to the cosmos.

**Highlights:** Virtual telescope functionality, Detailed information on 4000+ galaxies, Real astro-photographs of celestial objects, Hand-measured and oriented images, Exploration of deep sky objects, Information on star clusters and nebulae

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

**In-app purchases:** none


### Lunar

[App page](https://appshunter.io/ios/app/lunar-moon-phase-and-widgets/id6792609105)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| Unlock Lunar | $4.99 | one-time |


## Frequently asked questions

### Is Cosmic Deepsky free?

Cosmic Deepsky costs $2.99, with no in-app purchases.

### Is Lunar free?

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

### Do Cosmic Deepsky or Lunar have ads?

Neither Cosmic Deepsky nor Lunar shows ads.

### Which is updated more often, Cosmic Deepsky or Lunar?

Cosmic Deepsky ships an update every 23 months, and Lunar every 4 days. Most recently, Cosmic Deepsky was updated on October 24, 2026 and Lunar on October 15, 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.*