# WWF Free Rivers vs Spacecraft AR

The clearest difference is rating: WWF Free Rivers at 3.6 against Spacecraft AR's 3.1. WWF Free Rivers also leads on update cadence (every 2 months vs every 7 months) and ratings volume (151 vs 25). Spacecraft AR's advantage is review sentiment (53% vs 31%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

WWF Free Rivers holds the better App Store score, 3.6 against 3.1. That said, the two scores are not equally well evidenced: WWF Free Rivers has 151 ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 31% of WWF Free Rivers's written reviews are positive against 53% of Spacecraft AR's, so the app with the better star average is not the one people write more warmly about.

WWF Free Rivers ships an update every 2 months, Spacecraft AR every 7 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | WWF Free Rivers | Spacecraft AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (151 ratings)](https://appshunter.io/ios/app/wwf-free-rivers/id1349935575/reviews)** | [3.1 (25 ratings)](https://appshunter.io/ios/app/spacecraft-ar/id1452909829/reviews) |
| Number of ratings | **151** | 25 |
| Positive reviews | 31.2% of reviews | **53.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 430 MB | 160 MB |
| Requires iOS | **11.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [World Wildlife Fund](https://appshunter.io/developer/581920334) | [Jet Propulsion Laboratory](https://appshunter.io/developer/347075767) |

## What reviewers say

### WWF Free Rivers

[App page](https://appshunter.io/ios/app/wwf-free-rivers/id1349935575)

Explore the vital role of rivers in ecosystems and human life through an interactive augmented reality experience. Manipulate river flows to understand the impact of dams and sustainable development, while collecting stories of the people and wildlife that depend on them.

**Highlights:** Interactive augmented reality river model, Simulate damming and sustainable development, Explore five distinct real-world habitats, Collect stories of people and wildlife, Learn about river threats and opportunities

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎓 Excellent educational tool for teaching environmental concepts
- 🎨 Beautiful graphics and visual design
- 🔮 Innovative AR technology implementation
- 🌍 Engaging way to learn about river ecosystems and conservation
- 📱 Works well on newer devices (iPhone 13, iPhone X)

**What reviewers complain about**

- 🐛 Frequent crashes on launch and during gameplay
- 📱 Poor compatibility with older devices (iPhone 6, iPad Mini 4)
- 🔋 Causes significant device overheating
- 📸 Difficult camera calibration and surface detection
- 🎮 Limited interactivity and gameplay mechanics

**Reported bugs**

- App crashes immediately after launch or during intro
- Black screen or freezing on opening screen
- Camera fails to detect flat surfaces even in well-lit areas
- AR map jumps and moves erratically during use
- App becomes unresponsive after initial loading screen

**Requested features**

- Non-AR version with traditional touch controls (pan, pinch, zoom)
- Ability to build and destroy dams to see real-time effects
- More interactive gameplay and user agency
- Additional landscapes and environments to explore
- Animated creatures with more natural behaviors


### Spacecraft AR

[App page](https://appshunter.io/ios/app/spacecraft-ar/id1452909829)

Explore the solar system with interactive 3D models of NASA spacecraft. View them in augmented reality, scaled to your environment, and learn about their missions. Perfect for aspiring astronauts, educators, and space lovers.

**Highlights:** Interactive 3D spacecraft models, Augmented reality viewing, True-to-life and adjustable scaling, Detailed mission information, In-app camera functionality, Explore Earth, Mars, and beyond

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

**In-app purchases:** none


## Frequently asked questions

### Is WWF Free Rivers free?

WWF Free Rivers is free to download, with no in-app purchases.

### Is Spacecraft AR free?

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

### Which has better reviews, WWF Free Rivers or Spacecraft AR?

WWF Free Rivers is rated higher. WWF Free Rivers averages 3.6 out of 5 from 151 ratings, while Spacecraft AR averages 3.1 from 25 ratings.

### Do WWF Free Rivers or Spacecraft AR have ads?

Neither WWF Free Rivers nor Spacecraft AR shows ads.

### Which is updated more often, WWF Free Rivers or Spacecraft AR?

WWF Free Rivers ships an update every 2 months, and Spacecraft AR every 7 months. Most recently, WWF Free Rivers was updated on October 24, 2026 and Spacecraft AR on October 20, 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.*