Comparison

Light Lab vs Chemistry App

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

Head to head
About

Light Lab

Features
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Move light. Refract it. Reflect it. Light Lab is an interactive science app where you learn by playing with light. 【Discover the Magic of Light】 Touch the screen and move the light source. Rotate lenses and change refractive indices. Watch light rays change in real-time! Create rainbows, bounce light off mirrors. "Why does this happen?" As you play, you'll naturally understand how light works. 【Perfect For】 ・Students learning about light in elementary or middle school ・Anyone studying light propagation, reflection, and refraction ・Teachers who want to make science class more engaging ・Anyone curious about optics 【What You Can Do】 ◆ Real-Time Light Manipulation Move light sources and lenses to see light rays change instantly. Rotation, translation, refractive index changes—all operations reflect in real-time. ◆ Place Various Lenses Triangular prisms, convex lenses, concave lenses, diamonds, spheres, mirrors, and more. Place up to 10 lenses simultaneously to recreate complex light behaviors. ※2 lens types are free (triangle prism, biconvex lens) ◆ 3 Types of Light Sources ・Parallel: Like sunlight ・Spotlight: Like a light bulb ・Dispersion: Rainbow-colored light ◆ Create Animations Save lens and light arrangements as "scenes." Connect multiple scenes to create animations showing how light transforms. ◆ Save and Share Save your creations in the app. Generate QR codes to share with friends and classmates. 【For Teachers】 Designed as an educational tool for classroom use. ・Visually understand light propagation, reflection, and refraction ・Simulate phenomena that are difficult to explain, like total internal reflection and dispersion ・Students can experiment independently—perfect for inquiry-based learning ・Save and share scenes as teaching materials Try it for free first! 【Features in Detail】 <Light Source Adjustments> ・Position and rotation ・Adjust number of rays and width <Lens Adjustments> ・Position and rotation ・Refractive index settings ・Size adjustment ・Curvature adjustment for convex and concave lenses <Scene Features> ・Create up to 5 scenes ・Smooth animations between scenes <File Features> ・Local saving ・QR code sharing 【Pricing】 Basic features are free. ◆ Lens Unlock ($5.99/ One-time purchase) Unlock premium lenses (plano-convex lens, biconcave lens, diamond, sphere, mirror, reflector). ◆ Lens Ticket Issuing Feature ($11.99/ One-time purchase) ※Requires "Lens Unlock" purchase first Generate QR codes to unlock all lenses on other devices for 1 year. Tickets can be issued repeatedly—perfect for teachers adopting the app school-wide or classroom-wide. 【Privacy】 ・No personal information is collected ・Works offline by default ・Internet connection required only for accurate time retrieval when using Lens Ticket feature 【Requirements】 ・iPhone / iPad ・iOS 16.0 or later 【Support】 Detailed instructions are available in the in-app "How to Use" menu. For questions, contact us via the support page. Bring the world of light closer. Let's play with light!

About

Chemistry App

Features
Read full description

Chemistry App is a simulation-first chemistry learning environment where users actively build, manipulate, and test atomic and molecular systems. Unlike reference-style chemistry apps, this app centers on interaction and cause-and-effect understanding. Primary Use Case: Help users understand how atoms behave and react by letting them directly manipulate systems instead of reading static content. Core Features: • 3D Atomic Models (Interactive, not static)  Users rotate atoms, inspect electron shells, and observe how structure relates to behavior. • Reaction Sandbox (Key Differentiator)  Users drag elements together to trigger reactions. Outcomes depend on conditions (for example: heat, pressure). This is not pre-rendered content, reactions are condition-driven. • Compound Formation Logic  The app models bond types (ionic, covalent) and shows resulting structures in 3D. • Guided Progression System Users move from simple atoms → compounds → complex systems through structured steps. • Applied Chemistry (real-world mapping) Everyday substances (for example: NaCl, glucose) are tied to their molecular structure and behavior. • Game Mode (reinforcement, not primary) Puzzle mechanics are used to reinforce compound recognition and reaction patterns. What makes this app different: Interaction-first (not content-first) Simulation-driven reactions (not static animations) Unified system: atoms then reactions then compounds then real-world context No login, no user-generated content, no payments.

Screenshots

Light Lab4 screens
Chemistry App4 screens

Verdict

The call

The clearest difference is in-app purchases: Chemistry App at none against Light Lab's 2. On price, update cadence, 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. Light Lab sells 2 one-off in-app purchases. Chemistry App asks for nothing beyond the download.

UpkeepUpdate frequency

Light Lab ships an update every 3 months, Chemistry App every 4 months. The most recent releases landed on September 14, 2026 and September 25, 2026 respectively.

Scorecard1 real difference · 5 level
Light Lab versus Chemistry App: the parameters behind the verdict, then further details
ParameterLight LabChemistry App
PriceFreeFree
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size8 MB35 MB
Age rating4+4+
DeveloperTHSSKheniTech

In-app purchases

2 purchases

Light Lab

One-time2
  • Purchase all lenses$4.99
  • Lens Ticket Issuance Function$9.99
None

Chemistry App

No in-app purchases

Questions

Is Light Lab free?
Light Lab is free to download, with in-app purchases available.
Is Chemistry App free?
Chemistry App is free to download, with no in-app purchases.
Do Light Lab or Chemistry App have ads?
Neither Light Lab nor Chemistry App shows ads.
Which is updated more often, Light Lab or Chemistry App?
Light Lab ships an update every 3 months, and Chemistry App every 4 months. Most recently, Light Lab was updated on September 14, 2026 and Chemistry App on September 25, 2026.

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