# CelestialGuide vs My Sky

The clearest difference is price: My Sky at Free against CelestialGuide's $0.99. My Sky also leads on update cadence (every 3 months vs every 17 months) and iOS requirement (16.0 vs 18.0). CelestialGuide's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

My Sky is free to download; CelestialGuide costs $0.99 up front. My Sky sells 1 one-off in-app purchase. CelestialGuide asks for nothing beyond the download.

CelestialGuide ships an update every 17 months, My Sky every 3 months. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CelestialGuide | My Sky |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/celestialguide/id649358382/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 17 MB | 62 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [哲 洪](https://appshunter.io/developer/1875789985) |

## What reviewers say

### CelestialGuide

[App page](https://appshunter.io/ios/app/celestialguide/id649358382)

Explore the cosmos with an interactive sky map that displays stars, planets, and celestial events. Point your device at the sky to see a real-time representation of your surroundings, with adjustable visibility settings for stars.

**Highlights:** Interactive sky map, Real-time celestial tracking, Adjustable star visibility, Planet and comet locations, Eclipse and transit rendering, Messier Object database, Virtual Orrery

**Features:** macOS Compatibility

**In-app purchases:** none


### My Sky

[App page](https://appshunter.io/ios/app/my-sky-deep-sky-star-map/id6759360405)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate to the Developer | $0.99 | one-time |


## Frequently asked questions

### Is CelestialGuide free?

CelestialGuide costs $0.99, with no in-app purchases.

### Is My Sky free?

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

### Do CelestialGuide or My Sky have ads?

Neither CelestialGuide nor My Sky shows ads.

### Which is updated more often, CelestialGuide or My Sky?

CelestialGuide ships an update every 17 months, and My Sky every 3 months. Most recently, CelestialGuide was updated on October 7, 2026 and My Sky on October 14, 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.*