Atomus vs Grating Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Atomus
This app is an interactive visualizer that creates beautiful, dynamic art inspired by natural phenomena and abstract concepts. It offers customizable particle effects, multi-touch interaction, and music integration, designed to inspire creativity or provide a relaxing visual experience.
- 10-Finger Multi-touch Display
- 5 Music Choices
- Fastest Speed (60 FPS)
- 12,000 Particles
- Customizable Particle Length, Number, & Size
- 3-Color Modes
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#ATOMUS — A Living Kinetic Universe in Your Hands Touch energy. Shape motion. Watch light come alive. ATOMUS transforms your screen into a living kinetic universe where thousands of particles react instantly to every movement, creating flowing structures, cosmic patterns, and mesmerizing visual motion that feels both dynamic and calming. Designed for moments when you want to reset your mind, explore visual creativity, or simply watch something beautiful evolve under your fingertips, ATOMUS offers a unique sensory experience between digital art and meditation. Every touch creates shifting forms that can feel like fireworks, auroras, galaxies, waves, atomic structures, or living energy — always moving, always changing. ## Why users love ATOMUS • Deeply immersive touch interaction • Hypnotic moving particle structures • Ideal for creative focus and visual relaxation • A satisfying sensory experience that never feels the same twice • Beautiful for both quiet moments and playful exploration ## A Dynamic Visual Experience ATOMUS is inspired by: • fireworks • whirlwinds • fireflies • auroras • rainbows • waves • atomic forms Each interaction creates evolving structures that feel alive and endlessly surprising. ## Real-Time Performance • Up to 12,000 particles in real time • Smooth 60 FPS rendering • 10-finger multi-touch support • Adjustable particle size, quantity, and trail length • 3 color modes: Neon, Crystal, Nature • Built-in music by Aden Ray (optional) ## Free Version Enjoy ATOMUS for free. Upgrade to HD for: • 2× more particles • Ad-free experience • Richer visual density ## Support If you have ideas, questions, or feedback, I would love to hear from you. sunglab@gmail.com http://www.sunglab.com
Grating Simulator
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The laser interference pattern is similar to what would be produced by a Laser pointer’s beam passing through a diffraction grating – When you shine a laser pointer (green, 532nm wavelength) through a series of transmission diffraction gratings, you get a beautiful regular array of bright spots. The center spot is the zero-order (undiffracted beam), and the surrounding spots are the various diffraction orders. The symmetry and regularity of the pattern is characteristic of a diffraction grating pattern. This simulation could be used as a demonstration setup for physics education – teaching about wave optics, interference and diffraction. It is a classic physics demonstration that beautifully illustrates the wave nature of light and the principles of diffraction.
Screenshots
Verdict
The clearest difference is ads: Grating Simulator at none against Atomus's shown. Grating Simulator also leads on update cadence (every 5 days vs every 2 months). Atomus's advantage is iOS requirement (15.6 vs 17.6). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Atomus ships an update every 2 months, Grating Simulator every 5 days. The most recent releases landed on September 25, 2026 and September 13, 2026 respectively.
| Parameter | Atomus | Grating Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (524 ratings) — better | — |
| Positive reviews | 90.0% of reviews | — |
| Number of ratings | 524 — better | — |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 91 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | SungLab Inc | Mark Barclay |
Bugs and requests
Atomus
Reported bugs
2 issues- Crashes when using more than 10 fingers
- Inconsistent ad frequency
Requested features
3 requests- More color and particle effect options
- Ability to turn off sound/music
- Haptic feedback support
Grating Simulator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Atomus
No in-app purchases
Grating Simulator
No in-app purchases







