Comparison

DrakeEQ vs SaturnMoons

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Drake Equation calculator
  • Interactive 7 parameter manipulation
  • Beautiful 3D galaxy visualizations
  • Galaxene Galaxy Engine
  • Educational and entertaining simulator
  • Universe exploration
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

DrakeEQ4 screens
SaturnMoons4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

DrakeEQ costs $0.99 and SaturnMoons $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
DrakeEQ versus SaturnMoons: the parameters behind the verdict, then further details
ParameterDrakeEQSaturnMoons
Price$0.99 — better$2.99
Rating2.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews37.5% of reviews40.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 5 months — betterEvery 26 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.58.0 — better
Further details — not scored
Size8 MB36 MB
Age rating4+4+
DeveloperOnomaly LLCGuidebook Inc

Customer experience

DrakeEQ

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews8 reviews
Positive37.5%
Neutral25.0%
Negative37.5%

SaturnMoons

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

In-app purchases

None

DrakeEQ

No in-app purchases

None

SaturnMoons

No in-app purchases

Questions

Is DrakeEQ free?
DrakeEQ costs $0.99, with no in-app purchases.
Is SaturnMoons free?
SaturnMoons costs $2.99, with no in-app purchases.
Which has better reviews, DrakeEQ or SaturnMoons?
SaturnMoons is rated higher. DrakeEQ averages 2.7 out of 5 from 3 ratings, while SaturnMoons averages 5.0 from 1 ratings.
Do DrakeEQ or SaturnMoons have ads?
Neither DrakeEQ nor SaturnMoons shows ads.
Which is updated more often, DrakeEQ or SaturnMoons?
DrakeEQ ships an update every 5 months, and SaturnMoons every 26 months. Most recently, DrakeEQ was updated on September 30, 2026 and SaturnMoons on October 4, 2026.

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