CloudLabs What is Light? vs GridMath
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CloudLabs What is Light?
Explore the nature of light through interactive simulations. Classify natural and artificial light sources and experiment with how light interacts with various materials. This educational tool offers a hands-on approach to understanding fundamental physics concepts.
- Classify natural and artificial light sources
- Simulate light travel through materials
- Interactive educational experiments
- Understand light physics concepts
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In this simulation, it is necessary to classify, among several elements, those that generate natural light and those that generate artificial light. In addition, a test must be performed with different objects to identify the way in which light travels through different materials.
GridMath
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GridMath generates quick, random, printable math worksheets for grades K–3. Choose addition, subtraction, multiplication and/or division, set the result range and problems per page, then get crisp PDFs ready to print or share—entirely offline. Beyond generation, the app keeps a local library of your worksheets, lets you open, reprint or delete files, and helps you track progress with per-sheet results (correct answers, time, effort) and summary trends. No account required. Woks offline.
Screenshots
Verdict
The clearest difference is in-app purchases: CloudLabs What is Light? at none against GridMath's 3. CloudLabs What is Light? also leads on iOS requirement (10.0 vs 13.0). GridMath's advantage is update cadence (daily vs every 6 months). On price, 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. GridMath sells 3 one-off in-app purchases. CloudLabs What is Light? asks for nothing beyond the download.
CloudLabs What is Light? ships an update every 6 months, GridMath daily. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | CloudLabs What is Light? | GridMath |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 171 MB | 34 MB |
| Age rating | 17+ | 4+ |
| Developer | Jiovany Orozco | Wojciech Szczurek |
In-app purchases
CloudLabs What is Light?
No in-app purchases
GridMath
- 30 Tokens$2.99
- 50 Tokens$4.99
- 100 Tokens$5.99
Questions
Is CloudLabs What is Light? free?
Is GridMath free?
Do CloudLabs What is Light? or GridMath have ads?
Which is updated more often, CloudLabs What is Light? or GridMath?
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