DrakeEQ vs SaturnMoons
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DrakeEQ
Explore the possibility of extraterrestrial life with a visually stunning calculator based on the Drake Equation. This app allows you to manipulate the equation's parameters and visualize galaxies in motion, offering an educational and entertaining experience.
- Drake Equation calculator
- Interactive 7 parameter manipulation
- Beautiful 3D galaxy visualizations
- Galaxene Galaxy Engine
- Educational and entertaining simulator
- Universe exploration
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Are we alone? We created DrakeEQ to provide a visually elegant answer to the extraterrestrial question, using the intellectually elegant Drake Equation. We coupled this fun calculator with beautiful, 3D galaxies in motion! To help us celebrate 15 years since the first release in 2009, DrakeEQ 7.0.0 now features our Galaxene Galaxy Engine! Use this fun simulator to graphically quantify the number of advanced extraterrestrial civilizations in our Milky Way Galaxy. Travel the Universe and explore infinitely variable galaxies! Just pinch anywhere and tap the targeting indicator. Perform thought experiments with this unique visual tool; it’s both educational and entertaining. Learn about the famous Drake Equation through direct manipulation of its 7 parameters with DrakeEQ. The Drake Equation states that: N = the number of civilizations in our galaxy with which communication might be possible where: R* = the average rate of star formation in our galaxy fp = the fraction of those stars that have planets ne = the average number of planets that can potentially support life per star that has planets fℓ = the fraction of the above that actually go on to develop life at some point fi = the fraction of the above that actually go on to develop intelligent life fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space L = the length of time such civilizations release detectable signals into space. Drake Equation. Wikipedia, The Free Encyclopedia.
SaturnMoons
Explore Saturn's rings and moons with this interactive guide. Pinpoint the location of its largest moons and step through time to see their future positions. Discover fascinating facts and images of Saturn's unique lunar family.
- Locate Saturn's nine largest moons
- Pinch-zoomable interface
- Local time synchronization
- Time controls (seconds, hours, days, years)
- Customizable telescope view
- Encyclopedia of Saturn's moons
- Stunning images of moons
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Let SaturnMoons guide you to observing Saturn’s complex system of rings and moons. Sky & Telescope’s latest app helps you locate Saturn’s nine largest moons with a pinch-zoomable interface set to your local time, guiding you to Saturn’s largest moon, Titan, or helping you try your luck with the fainter moons. The time controls allow you to step through the seconds or hours, or speed through days or even years to see where the moons will be down the line. And you can flip the view to customize what you see through your telescope. Plus, our full encyclopedia section contains fascinating entries and stunning images of Saturn’s bizarre lunar family. Learn more about Saturn’s “death star” moon, Mimas, two-faced Iapetus, and the salty ocean frothing beneath Enceladus’s surface. Please note: this application is designed to work in landscape orientation only so that you may view Saturn, Saturn’s rings, and the lunar family at their best.
Screenshots
Verdict
The clearest difference is rating: SaturnMoons at 5.0 against DrakeEQ's 2.7. SaturnMoons also leads on iOS requirement (8.0 vs 17.5). DrakeEQ's advantage is update cadence (every 5 months vs every 26 months) and price ($0.99 vs $2.99). On review sentiment, ads, in-app purchases and monetization model 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
DrakeEQ costs $0.99 and SaturnMoons $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SaturnMoons holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 38% of DrakeEQ's written reviews are positive against 40% of SaturnMoons's.
DrakeEQ ships an update every 5 months, SaturnMoons every 26 months. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.
| Parameter | DrakeEQ | SaturnMoons |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 2.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 37.5% of reviews | 40.0% of reviews — better |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 5 months — better | Every 26 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 8.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Onomaly LLC | Guidebook Inc |
Customer experience
DrakeEQ
SaturnMoons
In-app purchases
DrakeEQ
No in-app purchases
SaturnMoons
No in-app purchases








