Space Odyssey vs CircleMap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Space Odyssey
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Space Odyssey application is filled with amazing facts about space to study, fun puzzles for kids, explore amazing photos of space and also there is quiz to test what you’ve learned about astronomy. Space Odyssey is an application designed for Space lovers. Soar into space and explore studying planets, moons, galaxies and much more on an exciting journey through our Space Odyssey. Learn about the history, mythology, and science of the heavens! Browse from hundreds of object descriptions, astronomical photographs structured in such a way as to cover all the topics that are required for beginners as well as for more advanced students and thereby provide a solid foundation in Astronomy to help them learn amazing facts about space. STUDY:: Learn about the stars, galaxies, Sun, the planets, moon, asteroids, comets, meteoroids, the Kuiper belt, the Milky Way, astronomy definition, astrochemistry telescope, gravity, asteroids , big bang, cosmology and lot more. Study mode is like astronomy dictionary with light weight and has a beautiful ui design which lets you search for the words while you type. In addition, all the terms are listed alphabetically with faster search facility, easy to navigate through entire app. STACK PLANETS:: It is puzzler to slide the planets around and put them together which teach student size, color and location of planets in solar system. Stack the Planets makes learning about solar system fun! Watch the planets actually come to life in this colorful and dynamic game! EXPLORE:: Explore amazing photos of the night sky, solar system images, planets, stars, moon, black holes, and much more. Pictures taken by DigiGalaxy expert astro photographers were also included in explore mode for you to enjoy. QUIZ:: Learner can put their Astronomy knowledge to test with the all new Space Odyssey Quiz! Every time you play you get random questions, so it never repeats.Test your knowledge and take the challenge! FEATURES:: ▪ Equipped with quick dynamic search function ▪ This app will work as a great pocket resource for Astronomy terms and definitions. ▪ Work Offline – It work offline, no active internet connection is required. Perfect for your trips or when no data connection is available. ▪ Every time you play quiz you get random questions, so it never repeats ▪ Simple and easy to play anywhere at any time! ▪ Easy to use controls make navigation a breeze. ▪ Entertaining, Fun, Educational and Challenging game for all ages
CircleMap
This app makes learning the unit circle and polar graphs interactive and fun. It offers customizable quizzes for angles, radians, and coordinates, along with a mode to visualize polar equations in both polar and Cartesian systems. It's designed to build confidence and speed in trigonometry and calculus.
- Interactive unit circle quizzes
- Customizable angle and radian practice
- Polar equation input and graphing
- Dual polar and Cartesian visualization
- Real-time graph exploration
- Instant feedback and score tracking
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Learning the Unit Circle can be tough—but it doesn’t have to be! Whether you’re preparing for a math test, brushing up on trigonometry, or just want a quicker way to recall key values, CircleMap turns study time into a fun, interactive experience—with two powerful learning modes. What is the Unit Circle—and How Does Polar Graphs Fit In? The Unit Circle is a powerful math concept that connects angles, radians, and coordinates to trigonometric functions. Mastering it is essential for high school and college trigonometry, precalculus, and calculus. But understanding only the Unit Circle isn’t enough—many students struggle to see how it relates to other systems like Polar and Cartesian coordinates. That’s why CircleMap includes Polar Graphs Mode, so you can input polar equations and instantly see them plotted in both Polar and Cartesian systems, making the connection crystal clear. Key Features Unit Circle Quiz Mode • Interactive Quizzes – Practice angles, radians, and coordinates in multiple quiz modes. • Customizable Focus – Choose degrees, radians, coordinates, or mix them for a full challenge. • Instant Feedback – See right away if you’re correct and track your score. • Adjustable Difficulty – Beginner-friendly or advanced challenge mode. • Optional Sound & Haptic Feedback – Make learning more engaging with audio and vibration cues. Polar Graphs Mode • Equation Input – Enter your own polar equations. • Dual-System Visualization – Instantly see your graph in both Polar and Cartesian forms. • Real-Time Exploration – Slide the value of θ to dynamically update the graph and watch how the Polar and Cartesian points change together. • Concept Reinforcement – Understand how the two coordinate systems connect through visual examples. Why You’ll Love It Unlike textbooks that only show static diagrams, CircleMap brings math to life. You’ll actively test yourself, explore polar equations, and see how concepts fit together—all in one app. Perfect for: • High school & college students studying trigonometry, precalculus, or calculus • SAT, ACT, AP Calculus, or AP Trigonometry preparation • Anyone who wants to strengthen their math foundation in a fun, visual way Once You Truly Understand… With CircleMap, you’ll: • Recall Unit Circle values faster and more accurately • See exactly how Polar and Cartesian systems connect • Solve trigonometric and coordinate geometry problems with confidence Start Learning Today The Unit Circle and Polar–Cartesian connection don’t have to be intimidating. With CircleMap, you’ll gain confidence, accuracy, and speed—all while having fun. Download CircleMap now—two modes, zero ads, and 100% free.
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Verdict
The clearest difference is price: CircleMap at Free against Space Odyssey's $2.99. CircleMap also leads on update cadence (daily vs every 19 months). On ads, in-app purchases, device support and iOS requirement 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
CircleMap is free to download; Space Odyssey costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Space Odyssey ships an update every 19 months, CircleMap daily. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | Space Odyssey | CircleMap |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 4.7 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 19 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 55 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | DigiGalaxy | Supparsorn Wantarnagon |
In-app purchases
Space Odyssey
No in-app purchases
CircleMap
No in-app purchases
Questions
Is Space Odyssey free?
Is CircleMap free?
Do Space Odyssey or CircleMap have ads?
Which is updated more often, Space Odyssey or CircleMap?
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