Earth vs ISS Explorer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
ISS Explorer
Explore a detailed 3D model of the International Space Station. Rotate, zoom, and select individual components to learn about their function and systems. Organize your view by turning parts and labels on or off.
- Interactive 3D ISS model
- Rotate and zoom functionality
- Selectable parts with isolation
- Detailed information on components
- Hierarchical part organization
- Toggle parts and labels
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The ISS explorer is an interactive tool for exploring the parts and pieces of the International Space Station (ISS). The application allows the user to view a 3D model of the ISS, rotate it, zoom into it, and select different parts and pieces. When the application starts, you can see a view of the entire ISS with category labels. Tabs are available on the left hand side of the screen which allow you access to information, the hierarchy, settings and application information. From this point, you can zoom into the station, revealing more labels of visible parts. The station can also be rotated to view from different angles. If a part is selected, the part is isolated so that you can focus on the specific piece. The information tab shows information about the currently isolated part. Inside the hierarchy tab, you can turn parts on or off, turn labels for parts on or off, turn parts transparent, or select a part to focus on. The parts are organized in a hierarchy to allow for systems to be described and displayed. This includes things such as truss, modules, and external platforms. The Information tab shows information about the current isolated part, system, or the full ISS if the entire station is shown.
Screenshots
Verdict
The clearest difference is review sentiment: ISS Explorer at 100% against Earth's 74%. ISS Explorer also leads on rating (4.9 vs 4.6). Earth's advantage is update cadence (every 4 months vs every 10 months). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ISS Explorer holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 42 and 16 respectively. Written reviews point the same way: 74% of Earth's written reviews are positive against 100% of ISS Explorer's.
Earth ships an update every 4 months, ISS Explorer every 10 months. Both last shipped on October 20, 2026.
| Parameter | Earth | ISS Explorer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (42 ratings) | 4.9 (16 ratings) — better |
| Positive reviews | 73.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 42 — better | 16 |
| Update frequency | Every 4 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 181 MB | 747 MB |
| Age rating | 4+ | 4+ |
| Developer | Jet Propulsion Laboratory | NASA |
Customer experience
Earth
ISS Explorer
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
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- 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
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- 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)
ISS Explorer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Earth
No in-app purchases
ISS Explorer
No in-app purchases
Questions
Is Earth free?
Is ISS Explorer free?
Which has better reviews, Earth or ISS Explorer?
Do Earth or ISS Explorer have ads?
Which is updated more often, Earth or ISS Explorer?
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