SDO Viewer vs Saturn
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SDO Viewer
Access and view the latest images from the Solar Dynamics Observatory. Receive push notifications when new images become available, keeping you updated on solar activity.
- Download SDO images
- Display latest solar images
- Push notifications for new images
- Courtesy of NASA/SDO science teams
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SDO Viewer is a simple application for downloading and displaying the latest images taken by the Solar Dynamics Observatory (SDO). It includes push notifications so you can be notified by a badge on the application when new images are available. SDO Viewer, by the creator of SoHO Viewer. Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.
Saturn
Explore stunning high-definition images and videos of Saturn and its moons. This app offers an interactive 3D experience and detailed insights into the Cassini mission. Discover the wonders of the ringed planet with a modern, visually appealing interface.
- Browse hundreds of stunning Saturn photos
- Cinematic slideshow with detailed insights
- Interactive gallery with zoom functionality
- Watch historic Cassini-Huygens mission videos
- Explore interactive 3D models of the Saturn system
- Modern glassmorphism UI with dark mode
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Embark on a Galactic Journey to Saturn Discover the majesty of the ringed planet with "Saturn: Cassini." This app is a premium, high-definition tribute to one of NASA’s most successful planetary missions. Redesigned for 2026 with a modern glassmorphism aesthetic, we bring the wonders of the deep space straight to your palm. Whether you are a space enthusiast, a student, or a casual observer, our platform provides a compact, visually stunning portal to the latest Saturn research and historical Cassini mission data. KEY FEATURES BROWSE: Explore a vast library of hundreds of stunning photos. Each image comes with detailed insights, historical context, and technical data. CINEMATIC SLIDESHOW: Immerse yourself in a full-screen experience that makes you feel as though you are orbiting Saturn. Access detailed information with a single tap without breaking the immersion. INTERACTIVE GALLERY: View the beauty of the Saturn system in a sleek, organized grid. Use intuitive gestures to zoom in on high-resolution details and examine the moons like Enceladus and Titan. MISSION VIDEOS: Watch the historic moments of the Cassini-Huygens mission. From Earth departure to the "Grand Finale" plunge, enjoy curated mission footage with modern playback controls and smart autoplay settings. 3D EXPLORATION: Bring the Saturn system to life with interactive 3D models. Rotate and explore the planet and its mysterious moons in a fully immersive environment. MODERN DESIGN: Experience a premium UI featuring glassmorphism effects, smooth animations, and a dark-mode optimized layout designed for the latest iOS versions. Join us in celebrating the legacy of Cassini and the eternal beauty of Saturn.
Screenshots
Verdict
The clearest difference is rating: Saturn at 5.0 against SDO Viewer's 2.7. SDO Viewer's advantage is ads (none vs shown) and update cadence (every 2 months vs every 28 months). On price, in-app purchases and device support 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.
Saturn holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: SDO Viewer has 6 ratings behind it against 1, so its average is the more settled of the two.
SDO Viewer ships an update every 2 months, Saturn every 28 months. Both last shipped on October 24, 2026.
| Parameter | SDO Viewer | Saturn |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 2 months — better | Every 28 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 71 MB |
| Age rating | 4+ | 9+ |
| Developer | Jérôme Diaz | Alparslan Topbas |
Customer experience
SDO Viewer
Saturn
In-app purchases
SDO Viewer
No in-app purchases
Saturn
No in-app purchases
