Comparison

WWF Free Rivers vs Spacecraft AR

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WWF Free Rivers

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
Read full description

WWF Free Rivers puts an entire landscape in your hands. Through this immersive, augmented reality experience, you’ll discover a river that flows through the lives of people and wildlife, and how their homes depend on those flows. Dam the river to see what happens, and then try different options for sustainable development that keeps the river healthy and flowing. Collect stories of people and animals along the way! Features • In-depth, educational storytelling experience for environmental science • Stunning, animated, augmented reality model users can interact with and learn from • Five distinct habitats based on real places: the Himalayan mountains, tropical jungles, African savannah, South American grasslands, and Southeast Asian deltas. • Opportunity to get involved and help protect rivers, and the people and wildlife that depend on them • An augmented reality map of the world’s rivers—and some of the biggest threats and opportunities they face.

About

Spacecraft AR

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
Read full description

Created by NASA’s Jet Propulsion Laboratory, this stunning educational app uses native mobile augmented reality to bring spacecraft explorers from across the solar system to whatever space you’re in. Find a flat surface and view interactive 3D models right in front of you, scaled to table-top size or in their true-to-life proportions. Take pics with the spacecraft in your favorite environments, and explore detailed info about their fascinating missions. This tool is excellent for budding astronauts, teachers, and space enthusiasts. Bring NASA’s journey of exploration to life in the classroom, home, or anywhere. Features: Interact with 3D spacecraft models of the Curiosity rover, Mars Exploration Rover (Spirit/Opportunity), InSightSMAP, Voyager, Juno, and Cassini, the 70-Meter Deep Space Network Antenna and more. Learn about missions that explore Earth, Mars, and beyond True-to-life and adjustable size interaction In-depth information about each space mission Camera functionality

Screenshots

WWF Free Rivers4 screens
Spacecraft AR4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
WWF Free Rivers versus Spacecraft AR: the parameters behind the verdict, then further details
ParameterWWF Free RiversSpacecraft AR
PriceFreeFree
Rating3.6 (151 ratings) — better3.1 (25 ratings)
Positive reviews31.2% of reviews53.3% of reviews — better
Number of ratings151 — better25
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.3 — better15.0
Further details — not scored
Size430 MB160 MB
Age rating4+4+
DeveloperWorld Wildlife FundJet Propulsion Laboratory

Customer experience

WWF Free Rivers

All ratings151 ratings
Positive58.9%
Neutral11.9%
Negative29.1%
Written reviews141 reviews
Positive31.2%
Neutral9.9%
Negative58.9%

Spacecraft AR

All ratings25 ratings
Positive48.0%
Neutral8.0%
Negative44.0%
Written reviews15 reviews
Positive53.3%
Neutral13.3%
Negative33.3%

Bugs and requests

WWF Free Rivers

Reported bugs

13 issues
  • 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
Show 8 more
  • Sketchy cross appears on screen preventing progression
  • App closes after first narrative segment
  • Camera permission dialog not appearing properly
  • Loading screen hangs indefinitely
  • Incompatibility with iPad Air 2 and older iPad models
  • Device overheating causing performance issues
  • AR objects fail to render or appear as blue dots only
  • App locks up device requiring force restart

Requested features

12 requests
  • 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
Show 7 more
  • Ability to reposition the AR table without restarting
  • Device rotation support during gameplay
  • Larger, more readable font sizes
  • Multiple language support
  • Underground/cave system exploration
  • More content and longer storytelling experience
  • Multiplayer or competitive elements

Spacecraft AR

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

WWF Free Rivers

No in-app purchases

None

Spacecraft AR

No in-app purchases

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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