Saturn vs Stars Units Sizes Objects
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Saturn
Explore stunning high-definition images and videos of Saturn and its moons. This app offers interactive 3D models and detailed insights into the Cassini mission. Perfect for space enthusiasts and students.
- Browse hundreds of stunning photos with detailed insights
- Cinematic slideshow for an immersive orbiting experience
- Interactive gallery with high-resolution zoom
- 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.
Stars Units Sizes Objects
Explore the vastness of the universe, from the smallest particles to the largest cosmic structures. Compare object sizes, view detailed images, and perform unit conversions across a wide range of astronomical scales. Learn about stars, galaxies, and the incredible distances between them.
- Compare object sizes
- View object images
- Pinch/Zoom and Pan images
- Unit conversion for distances
- Explore scales from Planck length to observable universe
- Learn about stars and galaxies
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Size of the smallest to largest objects and stars. Compare the size of objects in the universe. Object images. Pinch/Zoom image. Pan/Move image. Rotate image. Double tap to reset an image. From the smallest to the largest one. From planck length to observable universe. From Yoctometre, Zeptometre, Attometre, Femtometre, Picometre, Nanometre, Micro, Millimetre, Centimetre, Metre, KiloMetre, Lightyear, Parsecs, Billion Lightyears to 93 Billion Lightyears. Size of objects, particles, atoms, cells, stars and galaxies. Get to know the stars. Get to know the spaces. get to know the universe. How small is this world. How big is the universe. And How great is the creator. How far is the star distance from earth. Two way 18 distance unit conversion. planck length, yoctometer, zeptometer, attometer, femtometer, picometre, nanometre, micrometre, Millimeter, Centimeter, Meter, Kilometer, Inch, Foot, Mile, Astronomical, Lightyear, Parsecs. Perform auto conversion when picker is changed. Share conversion result. Reset unit convertor.
Screenshots
Verdict
The clearest difference is rating: Saturn at 5.0 against Stars Units Sizes Objects's 4.3. Stars Units Sizes Objects's advantage is in-app purchases (none vs 1) and update cadence (every 4 months vs every 10 months). On price, ads 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. Saturn sells 1 one-off in-app purchase. Stars Units Sizes Objects asks for nothing beyond the download.
Saturn holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Stars Units Sizes Objects has 6 ratings behind it against 1, so its average is the more settled of the two.
Saturn ships an update every 10 months, Stars Units Sizes Objects every 4 months. Both last shipped on November 3, 2026.
| Parameter | Saturn | Stars Units Sizes Objects |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | — | 80.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 10 months | Every 4 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 74 MB | 124 MB |
| Age rating | 9+ | 4+ |
| Developer | Alparslan Topbas | Mudarmeen Munlin |
Customer experience
Saturn
Stars Units Sizes Objects
In-app purchases
Saturn
- Remove Ads$1.99
Stars Units Sizes Objects
No in-app purchases
Questions
Is Saturn free?
Is Stars Units Sizes Objects free?
Which has better reviews, Saturn or Stars Units Sizes Objects?
Do Saturn or Stars Units Sizes Objects have ads?
Which is updated more often, Saturn or Stars Units Sizes Objects?
Other comparisons
