# Earth vs Space Telescope App

The clearest difference is rating: Earth at 4.6 against Space Telescope App's 4.1. Earth also leads on in-app purchases (none vs 4) and ads (none vs shown). Space Telescope App's advantage is update cadence (every 10 days vs every 4 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Space Telescope App sells 4 in-app purchases, starting at $4.99 per month. Earth asks for nothing beyond the download.

Earth holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 42 and 31 respectively. Written reviews point the same way: 74% of Earth's written reviews are positive against 40% of Space Telescope App's.

Earth ships an update every 4 months, Space Telescope App every 10 days. The most recent releases landed on October 20, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Earth | Space Telescope App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (42 ratings)](https://appshunter.io/ios/app/earth-now/id494633346/reviews)** | [4.1 (31 ratings)](https://appshunter.io/ios/app/space-telescope-app/id1603876992/reviews) |
| Number of ratings | **42** | 31 |
| Positive reviews | **73.7% of reviews** | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 181 MB | 104 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jet Propulsion Laboratory](https://appshunter.io/developer/347075767) | [KAKHA GIORGASHVILI](https://appshunter.io/developer/1501353984) |

## What reviewers say

### Earth

[App page](https://appshunter.io/ios/app/earth-now/id494633346)

Visualize global climate data from NASA satellites, including temperature, CO2, and sea level. Explore 3D Earth models with interactive controls and color-coded maps to understand environmental conditions.

**Highlights:** Global climate data visualization, Satellite data from Earth Science, Surface air temperature maps, CO2 and CO levels, Ozone and water vapor data, Gravity and sea level variations, Interactive 3D Earth model

**In-app purchases:** none

**What reviewers like**

- 🌍 Real-time Earth data visualization
- 👍 User-friendly interface and easy navigation
- 🎨 Beautiful and mesmerizing graphics
- 📊 Comprehensive satellite data from NASA/JPL
- 🆓 Free access to scientific information

**What reviewers complain about**

- 🐛 Frequent crashes on older devices
- ⏳ Slow loading times on poor internet
- 🔍 Difficult to understand without scientific background
- 🗺️ Antarctica and polar regions blacked out/missing
- 📐 Zooming and scrolling too sensitive

**Reported bugs**

- App crashes on startup or during use
- Endless 'Loading model' message
- Crashes on iPhone 4 and older devices
- Pixel doubler requirement on iPad
- No landscape orientation support

**Requested features**

- Celsius/Kelvin temperature unit options
- Satellite information (height, launch date)
- ISS tracking capability
- Ocean current visualization
- Ice sheet data layers


### Space Telescope App

[App page](https://appshunter.io/ios/app/space-telescope-app/id1603876992)

Explore the universe with real-time updates and stunning visuals from NASA's James Webb Space Telescope. Engage with expert insights, join community discussions, and test your knowledge with interactive quizzes. Discover distant galaxies and unlock the secrets of the early universe.

**Highlights:** Live mission updates, Breathtaking image gallery, Expert Q&A with astronomers, Community discussions, Interactive space quizzes, 3D solar system explorer, Exclusive wallpapers

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Ad-Free Plan | $4.99 | per month |
| Ad-Free Annual Access | $29.99 | per year |
| Premium | $2.99 | one-time |
| Buy 1M Points | $99.99 | one-time |


## Frequently asked questions

### Is Earth free?

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

### Is Space Telescope App free?

Space Telescope App is free to download, with in-app purchases available.

### Which has better reviews, Earth or Space Telescope App?

Earth is rated higher. Earth averages 4.6 out of 5 from 42 ratings, while Space Telescope App averages 4.1 from 31 ratings.

### Do Earth or Space Telescope App have ads?

Space Telescope App shows ads; Earth does not.

### Which is updated more often, Earth or Space Telescope App?

Earth ships an update every 4 months, and Space Telescope App every 10 days. Most recently, Earth was updated on October 20, 2026 and Space Telescope App on October 27, 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.*