Prism Lab vs Astronomy Game
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prism Lab
This application simulates lasers passing through prisms, demonstrating light refraction and reflection using Snell's Law. Users can adjust light sources, materials, and prism shapes to observe how light's trajectory changes between environments. It's a practical tool for understanding optical principles.
- Laser refraction simulation
- Snell's Law implementation
- Adjustable light source
- Variable prism shapes
- Different material options
- Angle calculation
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Prism Lab is an optics bench in your pocket. Put a piece of glass on the graph paper, aim the laser at it, and watch the light bend, bounce and split, with every angle measured for you. It follows the experiments from a school ray box kit, so it works as a companion to the lab or on its own. THE BENCH • Nine pieces: a simple surface, 45-90-45 and 60-60-60 prisms, rectangle, square, semicircle, convex and concave lenses, and an optical fibre. • Drag the laser and where it aims. The angles of incidence, refraction and reflection update as you move. • Tap any angle and type the value you want. The laser swings there so you can see how it gets to it. • One, three or five parallel beams, to find the focus of a lens. MATERIALS • 119 materials for the piece and for what surrounds it: glasses, liquids, gems and gases, each with its refractive index. • The critical angle is worked out for every pair, and you can see total internal reflection happen. COLOUR • White light opens into a spectrum, because each colour bends by its own amount. • 77 materials use published dispersion data. For the rest the app tells you the spread is an estimate. • Red, yellow, green, blue and violet lasers, in the width you choose. LIGHTS OFF • Turn the lights off and the beams glow, as in a dark classroom. NO STRINGS • No account, no ads, and no data collected. • Everything is free. If you find it useful you can buy the developers a coffee. In English, Spanish and French, for iPhone and iPad.
Astronomy Game
Explore the cosmos and expand your knowledge of space. This educational application covers planets, our solar system, and galaxies, making learning about the universe engaging and accessible.
- Learn about planets
- Explore the solar system
- Discover galaxies
- Improve general knowledge
- Educational content
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Discover the universe we live in! Learn about the planets, our solar system, our galaxy and many more. Improve your astronomy general knowledge! This app is educational as it helps you learn more about our universe.
Screenshots
Verdict
The clearest difference is rating: Astronomy Game at 4.4 against Prism Lab's 3.3. Astronomy Game also leads on update cadence (every 13 months vs every 216 months). Prism Lab's advantage is in-app purchases (none vs 1) and ratings volume (287 vs 10). On price, review sentiment, 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. Astronomy Game sells 1 one-off in-app purchase. Prism Lab asks for nothing beyond the download.
Astronomy Game holds the better App Store score, 4.4 against 3.3. That said, the two scores are not equally well evidenced: Prism Lab has 287 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 80% of Prism Lab's written reviews are positive against 86% of Astronomy Game's.
Prism Lab ships an update every 216 months, Astronomy Game every 13 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Prism Lab | Astronomy Game |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (287 ratings) | 4.4 (10 ratings) — better |
| Positive reviews | 80.0% of reviews | 85.7% of reviews — better |
| Number of ratings | 287 — better | 10 |
| Update frequency | Every 216 months | Every 13 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | KZ Labs | Horea Bucerzan |
Customer experience
Prism Lab
Astronomy Game
In-app purchases
Prism Lab
No in-app purchases
Astronomy Game
- Unlock Extra Content + Ad-Free$3.99
Questions
Is Prism Lab free?
Is Astronomy Game free?
Which has better reviews, Prism Lab or Astronomy Game?
Do Prism Lab or Astronomy Game have ads?
Which is updated more often, Prism Lab or Astronomy Game?
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