# NASA vs Stellar Tour

The clearest difference is in-app purchases: NASA at none against Stellar Tour's 6. NASA also leads on ratings volume (64K vs 1.7K) and device support (4 vs 2). Stellar Tour's advantage is review sentiment (84% vs 70%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Stellar Tour sells 5 one-off in-app purchases. NASA asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for NASA against 4.7 for Stellar Tour. That said, the two scores are not equally well evidenced: NASA has 64K ratings behind it against 1.7K, so its average is the more settled of the two. Written reviews are what separate them: 70% of NASA's written reviews are positive against 84% of Stellar Tour's.

NASA ships an update every 2 weeks, Stellar Tour fortnightly. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | NASA | Stellar Tour |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (64K ratings)](https://appshunter.io/ios/app/nasa/id334325516/reviews)** | [4.7 (1.7K ratings)](https://appshunter.io/ios/app/stellar-tour/id1197929178/reviews) |
| Number of ratings | **64K** | 1.7K |
| Positive reviews | 69.9% of reviews | **83.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 60 MB | 570 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NASA](https://appshunter.io/developer/355542146) | [Aaron Day](https://appshunter.io/developer/1028872452) |

## What reviewers say

### NASA

[App page](https://appshunter.io/ios/app/nasa/id334325516)

Explore the universe with access to live and on-demand NASA+ videos, a vast collection of stunning images, and the latest mission news. Discover interactive augmented reality experiences and track the International Space Station's path.

**Highlights:** NASA+ video streaming, 21,000+ NASA images, Latest NASA news, Mission updates, Podcasts, ISS tracking and Sky View, Augmented reality experiences

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast loading
- 👍 Informative and educational
- 🌟 Amazing images and videos
- 💻 Great for learning about space
- 🔭 Comprehensive space information

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔍 Difficult to navigate and find content
- 📺 Missing live streaming features
- 🔄 Outdated user interface
- 🔍 Lack of search functionality

**Reported bugs**

- Crashes on launch for some devices
- Inability to close/exit image viewer
- Notifications not working as expected
- Incompatibility issues with newer iOS versions

**Requested features**

- Add live streaming of NASA TV
- Improve navigation and search
- Implement dark mode option
- Bring back old features (e.g. APOD widget, ISS sightings)
- Enhance 3D models and AR capabilities


### Stellar Tour

[App page](https://appshunter.io/ios/app/stellar-tour/id1197929178)

Explore the cosmos with an augmented reality stargazing app guided by an astrophysicist. Discover exoplanets, solar system bodies, and deep-sky objects with scientifically accurate narratives and detailed visuals.

**Highlights:** Augmented reality stargazing, Astrophysicist-guided tours, Detailed exoplanet information, High-resolution solar system visuals, Exploration of galaxies and nebulae, Interactive 3D planet and moon models

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads 1 | $2.99 | one-time |
| Upgrade: Lessons & Sky Tools | $3.99 | one-time |
| Cosmic Expansion | $9.99 | one-time |
| Remove Ads 2 | $9.99 | one-time |
| Remove Ads 3 | $14.99 | one-time |

**What reviewers like**

- 🌟 Amazing app
- 👍 Excellent for stargazing and learning
- 🔭 Helpful for identifying stars and constellations
- 🌌 Detailed information on planets and exoplanets
- 🎓 Great educational tool for all ages

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 🤔 Some features not intuitive or user-friendly
- 💰 Wish it was completely free without in-app purchases
- 🌍 Language localization could be improved

**Reported bugs**

- Login screen freezes
- Compatibility issues with newer iOS versions
- Videos not playing offline as expected

**Requested features**

- Add support for viewing comets and other celestial events
- Improve AR functionality and integration
- Provide more detailed information on exoplanets
- Introduce a dark mode option for better visibility at night


## Frequently asked questions

### Is NASA free?

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

### Is Stellar Tour free?

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

### Which has better reviews, NASA or Stellar Tour?

NASA is rated higher. NASA averages 4.8 out of 5 from 64K ratings, while Stellar Tour averages 4.7 from 1.7K ratings.

### Do NASA or Stellar Tour have ads?

Neither NASA nor Stellar Tour shows ads.

### Which is updated more often, NASA or Stellar Tour?

NASA ships an update every 2 weeks, and Stellar Tour fortnightly. Most recently, NASA was updated on September 26, 2026 and Stellar Tour on September 25, 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.*