Atomus HD vs F.A.S.T baby
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Atomus HD
Experience a premium kinetic universe of light and motion with dynamic, evolving particle structures. This app offers a richer, more immersive visual experience perfect for creative focus, relaxation, or quiet exploration.
- Evolving light and motion structures
- Richer particle density and flow
- Smooth 60 FPS rendering
- 10-finger multi-touch support
- Adjustable particle settings
- Multiple color modes
- Ad-free experience
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ATOMUS HD — A Premium Kinetic Universe of Light and Motion A deeper, richer, more immersive particle experience. ATOMUS HD is the premium edition of ATOMUS, designed for users who want a more complete visual experience — with richer particle density, smoother movement, and stronger visual immersion. Every touch creates evolving structures of light and motion, forming dynamic patterns that feel alive, hypnotic, and endlessly satisfying. Perfect for creative focus, visual relaxation, quiet moments, or simply watching something extraordinary emerge beneath your fingertips. Premium Dynamic Experience The HD version delivers stronger visual depth and richer particle flow, making every interaction feel more fluid and immersive. Ideal for: • relaxation • creative thinking • sensory focus • visual meditation • quiet exploration Inspired by Living Motion ATOMUS HD creates visual structures inspired by: • fireworks • whirlwinds • auroras • waves • rainbows • atomic forms Every movement generates new patterns that continuously evolve. HD Performance • Richer real-time particle density • 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) Why Choose HD • Completely ad-free • Higher visual richness • Stronger immersion • Premium uninterrupted experience Support If you have ideas, questions, or feedback, I would love to hear from you. sunglab@gmail.com www.sunglab.com
F.A.S.T baby
This app offers a calming visual experience for babies and very young children with colorful, moving spiral patterns. Tapping the screen generates new spirals, or they change automatically after a brief pause, providing a simple and engaging display.
- Tap to generate new spirals
- Automatic spiral changes
- Simple full-screen interface
- Designed for young children
- Colorful moving patterns
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F.A.S.T baby is a gentle visual app designed for babies and very young children. With a simple tap anywhere on the screen, a newly generated spiral appears instantly. If there is no interaction for a few seconds, the spiral changes automatically, creating a calm and playful visual experience. The app is intentionally simple, focusing on colorful moving spiral patterns that can capture a child’s attention without complicated controls or distractions. Features - Tap anywhere to generate a new spiral - Automatic spiral changes after a short period of inactivity - Simple full-screen experience - Designed for little children Safety Notice Animated spiral patterns may cause discomfort, nausea, or headaches in some individuals. People with epilepsy or sensitivity to flashing or moving visual effects should not use this application. A companion app for adults is also available: F.A.S.T
Screenshots
Verdict
The clearest difference is price: F.A.S.T baby at Free against Atomus HD's $3.99. Atomus HD's advantage is rating (4.8 vs 3.3) and update cadence (every 3 months vs every 55 months). On ads, in-app purchases, device support and iOS requirement 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
F.A.S.T baby is free to download; Atomus HD costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Atomus HD holds the better App Store score, 4.8 against 3.3. That said, the two scores are not equally well evidenced: Atomus HD has 60 ratings behind it against 11, so its average is the more settled of the two.
Atomus HD ships an update every 3 months, F.A.S.T baby every 55 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | Atomus HD | F.A.S.T baby |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (60 ratings) — better | 3.3 (11 ratings) |
| Positive reviews | 90.7% of reviews | — |
| Number of ratings | 60 — better | 11 |
| Update frequency | Every 3 months — better | Every 55 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 63 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | SungLab Inc | Philippe Zay |
Customer experience
Atomus HD
F.A.S.T baby
Bugs and requests
Atomus HD
Reported bugs
8 issues- App crashes with 11 fingers
- Orientation issues on tablets
- Music not working
- Sound stopped working
- App freezes after opening and exiting
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- App crashes with more than 9 fingers
- App crashes with more than 10 fingers
- App crashes with multiple fingers
Requested features
10 requests- User manual or explanations
- Ability to customize starting points
- Option to record or save favorite settings
- Ability to take screenshots
- More music tracks/playlists
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- Ability to play animation via Apple TV
- Add more themes
- Implement speed control
- Option to capture images or short videos
- Add more colors and particle formation modes
F.A.S.T baby
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Atomus HD
No in-app purchases
F.A.S.T baby
No in-app purchases
Questions
Is Atomus HD free?
Is F.A.S.T baby free?
Which has better reviews, Atomus HD or F.A.S.T baby?
Do Atomus HD or F.A.S.T baby have ads?
Which is updated more often, Atomus HD or F.A.S.T baby?
Other comparisons
