# CelestialGuide vs Hubble

The clearest difference is iOS requirement: Hubble at 15.6 against CelestialGuide's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

CelestialGuide costs $0.99 and Hubble $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CelestialGuide ships an update every 17 months, Hubble every 9 months. The most recent releases landed on June 10, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | CelestialGuide | Hubble |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 9 months** |
| Monetization | Paid | — |
| Size | 17 MB | 1.7 GB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [Alparslan Topbas](https://appshunter.io/developer/1130875171) |

## 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


### Hubble

[App page](https://appshunter.io/ios/app/hubble-deep-space-pro/id1579382668)

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

**In-app purchases:** none


## Frequently asked questions

### Is CelestialGuide free?

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

### Is Hubble free?

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

### Do CelestialGuide or Hubble have ads?

Neither CelestialGuide nor Hubble shows ads.

### Which is updated more often, CelestialGuide or Hubble?

CelestialGuide ships an update every 17 months, and Hubble every 9 months. Most recently, CelestialGuide was updated on June 10, 2026 and Hubble on September 13, 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.*