# Celestia vs CloudLabs Environmental Factor

The clearest difference is rating: Celestia at 4.4 against CloudLabs Environmental Factor's 1.0. Celestia also leads on ratings volume (324 vs 1). CloudLabs Environmental Factor's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Celestia sells 4 in-app purchases, starting at $0.99 per 7 days. CloudLabs Environmental Factor asks for nothing beyond the download.

Celestia holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Celestia has 324 ratings behind it against 1, so its average is the more settled of the two.

Celestia ships an update every 2 weeks, CloudLabs Environmental Factor every 3 weeks. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Celestia | CloudLabs Environmental Factor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (324 ratings)](https://appshunter.io/ios/app/celestia-space-simulator/id1500434829/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/cloudlabs-environmental-factor/id1636549761/reviews) |
| Number of ratings | **324** | 1 |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 545 MB | 74 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [林峰 李](https://appshunter.io/developer/1186547508) | [Jiovany Orozco](https://appshunter.io/developer/1114670847) |

## What reviewers say

### Celestia

[App page](https://appshunter.io/ios/app/celestia-space-simulator/id1500434829)

Explore the universe in real-time 3D. Visit planets, moons, star clusters, and galaxies, viewing them from any point in space and time. Customize your experience with expandable content and detailed simulations.

**Highlights:** Real-time 3D space visualization, Explore planets, moons, stars, galaxies, Accurate solar system object positions, Interactive planetarium mode, Expandable content with add-ons, Customizable celestial databases

**Features:** Game Controller support, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Celestia PLUS (Weekly) | $0.99 | per 7 days |
| Celestia PLUS (Monthly) | $1.99 | per month |
| Celestia PLUS (Yearly) | $19.99 | per year |
| Celestia PLUS (Lifetime) | $79.99 | one-time |

**What reviewers like**

- ⭐ Realistic space simulation
- 🌌 Ability to explore galaxies and star systems
- 🔍 Detailed planet and moon textures
- 📷 Great for taking screenshots
- 🤖 Reminds users of Space Engine

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 🌌 Limited exploration beyond Milky Way and Andromeda
- 🌍 Flat terrain on planets
- 🔍 Lack of detail on some celestial objects
- 🔒 Paywall for some features

**Reported bugs**

- Milky Way and other galaxy textures not loading properly
- Crashes when using certain add-ons
- Issues with planet and moon orbits not being accurate

**Requested features**

- Add more exoplanets and distant star systems
- Implement terrain generation for planets
- Expand to include more galaxies and the overall universe structure
- Add support for black holes, pulsars, and other exotic objects
- Improve controls and camera movement


### CloudLabs Environmental Factor

[App page](https://appshunter.io/ios/app/cloudlabs-environmental-factor/id1636549761)

Explore an aquatic ecosystem simulator where you can manipulate environmental factors like temperature, oxygen, and light. Observe the impact of these changes on species such as algae, crustaceans, and fish.

**Highlights:** Aquatic ecosystem simulation, Control temperature, oxygen, and light, Observe species reactions, Study environmental extremes, Educational tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Celestia free?

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

### Is CloudLabs Environmental Factor free?

CloudLabs Environmental Factor is free to download, with no in-app purchases.

### Which has better reviews, Celestia or CloudLabs Environmental Factor?

Celestia is rated higher. Celestia averages 4.4 out of 5 from 324 ratings, while CloudLabs Environmental Factor averages 1.0 from 1 ratings.

### Do Celestia or CloudLabs Environmental Factor have ads?

Neither Celestia nor CloudLabs Environmental Factor shows ads.

### Which is updated more often, Celestia or CloudLabs Environmental Factor?

Celestia ships an update every 2 weeks, and CloudLabs Environmental Factor every 3 weeks. Most recently, Celestia was updated on September 21, 2026 and CloudLabs Environmental Factor 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.*