Comparison

Earth vs SOS Explorer

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

Head to head
About

Earth

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
Read full description

NASA's Earth Now is an application that visualizes recent global climate data from Earth Science satellites, including surface air temperature, carbon dioxide, carbon monoxide, ozone, and water vapor as well as gravity and sea level variations. Data sets are visually described using "false color" maps. Color-coded legends are provided to indicate relative strength or weakness of an environmental condition. The resulting 3D model of the Earth may be rotated by a single finger stroke, and may also be zoomed in or out by pinching 2 fingers. It was developed by the Earth Science Communications and Visualization Technology Applications and Development Teams at NASA's Jet Propulsion Laboratory, with support from NASA Headquarters.

About

SOS Explorer

Explore interactive animated datasets of Earth and space phenomena, from planetary rings to climate change models. This app brings complex environmental processes to life in an intuitive and captivating way, making learning accessible anywhere.

Highlights
  • Streaming high-resolution datasets
  • Educational videos
  • User-guided tours
  • Analysis tools
  • 100+ datasets
  • Global and flat map views
Features
Read full description

SOS Explorer (SOSx) Mobile is a free, flat screen mobile app version of the popular NOAA Science On a Sphere (SOS). This revolutionary software takes SOS datasets, usually only seen on a 6-foot sphere in large museum spaces, and makes them accessible, portable, and interactive anywhere. SOSx Mobile can immerse the user in animated images such as Saturn’s rings, atmospheric storms, climate change, and ocean temperatures to help explain sometimes complex environmental processes in a way that is intuitive, captivating, interactive, and entertaining. A desktop version, called SOS Explorer, is also available. Thank you for using SOS Explorer (SOSx) Mobile. We are committed to continually improving our software and providing you with an engaging and educational experience. We hope you enjoy the new features and enhancements in version 1.2! Please continue to share your feedback with us as we work on improvements. We appreciate your patience and support. Features include: • Streaming, high-resolution datasets • Educational videos • User-guided tours • Analysis tools • 100+ datasets • Global and flat map views Sample datasets: • Recent Hurricane Seasons • Bird Migration • Earthquake Activity • Snow and Ice • Ocean Currents • Historical Tsunamis • Facebook Friendships • Air Traffic • Planets of the Solar System • Climate Change Models • 360 Underwater Imagery • Narrated Movies • ...and so much more!

Screenshots

Earth4 screens
SOS Explorer4 screens

Verdict

The call

The clearest difference is update cadence: Earth at every 4 months against SOS Explorer's every 11 months. SOS Explorer's advantage is review sentiment (86% vs 74%). On price, rating, ratings volume and ads 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

On the App Store both sit at effectively the same score — 4.6 for Earth against 4.7 for SOS Explorer. Both are backed by a comparable volume of ratings — 42 and 20 respectively. Written reviews are what separate them: 74% of Earth's written reviews are positive against 86% of SOS Explorer's.

UpkeepUpdate frequency

Earth ships an update every 4 months, SOS Explorer every 11 months. The most recent releases landed on September 5, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 8 level
Earth versus SOS Explorer: the parameters behind the verdict, then further details
ParameterEarthSOS Explorer
PriceFreeFree
Rating4.6 (42 ratings)4.7 (20 ratings) — better
Positive reviews73.7% of reviews85.7% of reviews — better
Number of ratings42 — better20
Update frequencyEvery 4 months — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size181 MB249 MB
Age rating4+4+
DeveloperJet Propulsion LaboratoryUniversity of Colorado Boulder

Customer experience

Earth

All ratings42 ratings
Positive90.5%
Neutral4.8%
Negative4.8%
Written reviews114 reviews
Positive73.7%
Neutral6.1%
Negative20.2%

SOS Explorer

All ratings20 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Bugs and requests

Earth

Reported bugs

12 issues
  • 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
Show 7 more
  • Doesn't fill iPhone 5 screen properly
  • Extremely slow data loading
  • Menu navigation issues
  • Equator display shows slashes of emptiness
  • Zoom sensitivity causes twitchy behavior
  • Text readability issues against Earth background
  • Geographic data coverage gaps

Requested features

17 requests
  • Celsius/Kelvin temperature unit options
  • Satellite information (height, launch date)
  • ISS tracking capability
  • Ocean current visualization
  • Ice sheet data layers
Show 12 more
  • Methane concentration data
  • Snapshot/screenshot capability
  • Adjustable animation playback speed
  • Manual timeline scrolling for animations
  • Higher resolution maps for Retina displays
  • Landscape orientation support
  • iPad version
  • Google Earth integration
  • More detailed explanations of data
  • Selectable date ranges for animations
  • Atmospheric CO2 levels (previously removed)
  • Surface temperature data (previously removed)

SOS Explorer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Earth

No in-app purchases

None

SOS Explorer

No in-app purchases

Questions

Is Earth free?
Earth is free to download, with no in-app purchases.
Is SOS Explorer free?
SOS Explorer is free to download, with no in-app purchases.
Which has better reviews, Earth or SOS Explorer?
SOS Explorer is rated higher. Earth averages 4.6 out of 5 from 42 ratings, while SOS Explorer averages 4.7 from 20 ratings.
Do Earth or SOS Explorer have ads?
Neither Earth nor SOS Explorer shows ads.
Which is updated more often, Earth or SOS Explorer?
Earth ships an update every 4 months, and SOS Explorer every 11 months. Most recently, Earth was updated on September 5, 2026 and SOS Explorer on September 7, 2026.

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