Earth and Science vs Celestial Simulation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Earth and Science
Explore Earth, space, and life sciences through interactive animations and detailed images. This educational app simplifies complex concepts across biology, geology, and astronomy with over twenty chapters.
- Interactive animations
- Detailed images of structures
- Covers biology, geology, and astronomy
- Explains complex scientific phenomena
- Over twenty chapters of content
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Earth and Science is an educational app that explains key concepts in the field of Earth and Life Sciences. With over twenty chapters, Earth and Science uses interactive animations to present important concepts in a simple and straightforward way. By presenting theories and relating concepts, Earth and Science explains some of the most interesting phenomena in the Earth and Life Sciences. Earth and Science allows to observe the interiors of structures through detailed images, helping to understand complex processes in action. Covering such diverse fields of science as Biology, Geology and Astronomy, some of the chapters include: The Atom and the Atomic Theory The Mitochondria and Cellular Respiration Animal and Plant Cells and their Organelles The Neuron and Synapses The Structure of a Plant The Internal Structure of the Earth Plate Tectonics Volcanos and Earthquakes Glaciers and the Formation of Landscapes The Water Cycle The Layers of the Sun The Sizes of the Planets The Structure of the Planets The Phases of the Moon The Seasons ISBN: 978-989-97421-4-7
Celestial Simulation
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Celestial Simulation Experience the universe as it truly moves. Celestial Simulation is a high-fidelity, physics-based app that lets you explore and understand celestial motion through real simulations—not animations or guesses. Every event is driven by time, location, and real celestial mechanics. From eclipses and planetary motion to lunar occultations and chaotic three-body dynamics, the app turns complex astronomy into intuitive, visual experiences. Observer-Based Simulation Your location matters. Set your observing position on Earth and watch how celestial events change with latitude, longitude, and time. Every simulation adapts instantly to your chosen place and moment. Solar System Geometry Explore the mechanics of the inner solar system: - Annular and hybrid solar eclipses with umbra and antumbra geometry - Planetary conjunctions and minimum angular separations - Mercury and Venus elongations for optimal visibility - Retrograde motion visualized over days and weeks - Transits of Mercury and Venus across the solar disk Most simulations are continuous and time-accurate. Lunar Occultations See how the Moon moves through the sky: - Occultations of bright stars and planets - Local and global visibility bands - Geometry that explains why an event is visible from certain locations Three-Body Dynamics Go beyond classical orbits and explore real gravitational complexity: - Circular Restricted Three-Body Problem (CR3BP) - Lagrange points L1–L5 with stability insights - Chaotic motion in non-rotating frames - Extreme sensitivity to initial conditions - These simulations reveal how real spaceflight dynamics and celestial chaos work. Special Focus: Total Solar Eclipse 2026 (Europe) A total solar eclipse will cross Europe in 2026 — a rare and unforgettable event. Celestial Simulation lets you explore the full path of totality, simulate eclipse geometry from different locations, and understand how timing and position affect what you will see. Use the simulation to: - Compare observing locations across Europe - Visualize eclipse paths and shadow motion - Plan where and when to experience totality Whether you are preparing a journey or simply exploring the mechanics behind the event, the app helps you understand why the eclipse unfolds the way it does. Built for Exploration - Interactive time control - Clean, focused visualizations - Designed for learners, enthusiasts, and curious minds - No clutter, no gimmicks—just the universe in motion Celestial Simulation is a pocket laboratory for understanding how the sky actually works. Whether you’re learning, teaching, or simply fascinated by celestial mechanics, this app lets you see the physics behind the beauty.
Screenshots
Verdict
The clearest difference is device support: Earth and Science at 4 against Celestial Simulation's 2. Earth and Science also leads on iOS requirement (9.0 vs 18.5). Celestial Simulation's advantage is price ($3.99 vs $4.99). On ads and in-app purchases 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
Earth and Science costs $4.99 and Celestial Simulation $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Earth and Science | Celestial Simulation |
|---|---|---|
| Price | $4.99 | $3.99 — better |
| Rating | 3.5 (4 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 15 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 188 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Landka | Dung Le |
In-app purchases
Earth and Science
No in-app purchases
Celestial Simulation
No in-app purchases
Questions
Is Earth and Science free?
Is Celestial Simulation free?
Do Earth and Science or Celestial Simulation have ads?
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