Comparison

DISCS 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

DISCS

Contribute observations about local crop conditions and drought impacts to a scientific community. View your reports alongside data from NASA satellites, NOAA rainfall, and ground sensors.

Highlights
  • Report crop conditions
  • Upload photos
  • View drought data
  • See rainfall information
  • Monitor vegetation health
  • Observe satellite data
Read full description

The smartphone app “Drought Information Supported by Citizen Scientists” (DISCS) was created by researchers at NASA’s Marshall Space Flight Center to facilitate the sharing and delivery of hydrologic and agricultural information from citizen scientists to the scientific community and partners involved in the monitoring of drought conditions. Users, as Citizen Scientists, are encouraged to contribute photos of local crop conditions along with information about crop type, crop health, soil moisture conditions, and other notes about drought impacts. In exchange, users of the app can observe their reports alongside reports of other Citizen Scientists, and view their information in the context of drought information from the U.S. Drought Monitor, recent rainfall data from NOAA, soil moisture information from ground sensors or through NASA modeling approaches, and view information about vegetation health and stress as observed from NASA’s constellation of satellites.

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

DISCS4 screens
Spacecraft AR4 screens

Verdict

The call

The clearest difference is rating: Spacecraft AR at 3.1 against DISCS's 2.0. Spacecraft AR also leads on ratings volume (25 vs 3). DISCS's advantage is update cadence (every 2 months vs every 7 months) and iOS requirement (8.0 vs 15.0). On price, review sentiment, ads and in-app purchases 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

Spacecraft AR holds the better App Store score, 3.1 against 2.0. That said, the two scores are not equally well evidenced: Spacecraft AR has 25 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of DISCS's written reviews are positive against 53% of Spacecraft AR's.

UpkeepUpdate frequency

DISCS ships an update every 2 months, Spacecraft AR every 7 months. The most recent releases landed on October 1, 2026 and October 20, 2026 respectively.

Scorecard4 real differences · 6 level
DISCS versus Spacecraft AR: the parameters behind the verdict, then further details
ParameterDISCSSpacecraft AR
PriceFreeFree
Rating2.0 (3 ratings)3.1 (25 ratings) — better
Positive reviews50.0% of reviews53.3% of reviews — better
Number of ratings325 — better
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size54 MB160 MB
Age rating4+4+
DeveloperNASAJet Propulsion Laboratory

Customer experience

DISCS

All ratings3 ratings
Positive0.0%
Neutral33.3%
Negative66.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Spacecraft AR

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

In-app purchases

None

DISCS

No in-app purchases

None

Spacecraft AR

No in-app purchases

Questions

Is DISCS free?
DISCS 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, DISCS or Spacecraft AR?
Spacecraft AR is rated higher. DISCS averages 2.0 out of 5 from 3 ratings, while Spacecraft AR averages 3.1 from 25 ratings.
Do DISCS or Spacecraft AR have ads?
Neither DISCS nor Spacecraft AR shows ads.
Which is updated more often, DISCS or Spacecraft AR?
DISCS ships an update every 2 months, and Spacecraft AR every 7 months. Most recently, DISCS was updated on October 1, 2026 and Spacecraft AR on October 20, 2026.

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