pxSat3D vs Gaiaxus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
pxSat3D
Visualize real-time satellite orbits around Earth. Explore the density of specific satellite types in orbit. Performance may vary on older devices.
- Real-time satellite tracking
- Visualize satellite orbits
- Quantify satellite types
- Space traffic visualization
- Educational space data
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This application will show the space traffic with the satellites currently orbiting . You can visualise the quantity of satellite for one type. Note : on older devices, displaying of numerous objects can be slow.
Gaiaxus
This app enables users to monitor water quality using a connected sensor, collecting data on temperature, turbidity, salinity, and more. It offers interactive learning modules for environmental education, suitable for students and citizen scientists.
- Real-time water quality data collection
- Temperature, turbidity, salinity, pH, chlorophyll monitoring
- Interactive educator-designed learning modules
- Field data collection and viewing
- Supports K-12 students, citizen scientists, and researchers
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The GaiaXus mobile app is a powerful tool for water quality monitoring, designed to engage students and citizen scientists in hands-on environmental education. Paired with the Proteus sensor, the app captures key water quality data like temperature, turbidity, salinity, depth, chlorophyll, and pH, providing a user-friendly platform for field data collection, viewing, and interactive learning through educator-designed “Labs.” While tailored for K-12 students, the app also scales for citizen scientists and researchers, enriching environmental literacy and STEM skills by combining real-world data with collaborative, problem-solving activities.
Screenshots
Verdict
The clearest difference is rating: Gaiaxus at 5.0 against pxSat3D's 4.5. Gaiaxus also leads on in-app purchases (none vs 2). pxSat3D's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.1). On price, ratings volume, update cadence 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
Both are free to download. pxSat3D sells 2 one-off in-app purchases. Gaiaxus asks for nothing beyond the download.
Gaiaxus holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
pxSat3D ships an update every 3 months, Gaiaxus every 2 months. Both last shipped on June 1, 2026.
| Parameter | pxSat3D | Gaiaxus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 12 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | P'tit Xav | GaiaXus LLC |
Customer experience
pxSat3D
Gaiaxus
In-app purchases
pxSat3D
- Tip$0.99
- Tip$2.99
Gaiaxus
No in-app purchases
