Comparison

Prism Lab vs Astronomy Game

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

Head to head
About

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.

Highlights
  • Laser refraction simulation
  • Snell's Law implementation
  • Adjustable light source
  • Variable prism shapes
  • Different material options
  • Angle calculation
Features
Read full description

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.

About

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.

Highlights
  • Learn about planets
  • Explore the solar system
  • Discover galaxies
  • Improve general knowledge
  • Educational content
Features
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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

Prism Lab4 screens
Astronomy Game4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Astronomy Game sells 1 one-off in-app purchase. Prism Lab asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Prism Lab versus Astronomy Game: the parameters behind the verdict, then further details
ParameterPrism LabAstronomy Game
PriceFreeFree
Rating3.3 (287 ratings)4.4 (10 ratings) — better
Positive reviews80.0% of reviews85.7% of reviews — better
Number of ratings287 — better10
Update frequencyEvery 216 monthsEvery 13 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size2 MB49 MB
Age rating4+4+
DeveloperKZ LabsHorea Bucerzan

Customer experience

Prism Lab

All ratings287 ratings
Positive48.1%
Neutral22.3%
Negative29.6%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

Astronomy Game

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews42 reviews
Positive85.7%
Neutral4.8%
Negative9.5%

In-app purchases

None

Prism Lab

No in-app purchases

1 purchases

Astronomy Game

One-time1
  • Unlock Extra Content + Ad-Free$3.99

Questions

Is Prism Lab free?
Prism Lab is free to download, with no in-app purchases.
Is Astronomy Game free?
Astronomy Game is free to download, with in-app purchases available.
Which has better reviews, Prism Lab or Astronomy Game?
Astronomy Game is rated higher. Prism Lab averages 3.3 out of 5 from 287 ratings, while Astronomy Game averages 4.4 from 10 ratings.
Do Prism Lab or Astronomy Game have ads?
Neither Prism Lab nor Astronomy Game shows ads.
Which is updated more often, Prism Lab or Astronomy Game?
Prism Lab ships an update every 216 months, and Astronomy Game every 13 months. Most recently, Prism Lab was updated on October 23, 2026 and Astronomy Game on October 24, 2026.

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