Comparison

F.A.S.T vs Quantum

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

Head to head
About

F.A.S.T

Create and customize mesmerizing mathematical spirals, including Archimedean and logarithmic forms. Offers intuitive controls for precise adjustments to curvature, color, and patterns. Ideal for creative discovery and educational exploration.

Highlights
  • Archimedean & Logarithmic Spirals
  • Intuitive Controls
  • Dynamic Colorization
  • Expert Mode
  • Dark Mode Support
  • Cross-device Compatibility
Features
Read full description

F.A.S.T (Fancy Archimedean Spiral Tool) Unlock the world of mesmerizing spirals with F.A.S.T – your ultimate tool for creating, exploring, and customizing beautiful mathematical spirals. Whether you're captivated by the elegance of curves or fascinated by the geometry of logarithmic and Archimedean spirals, F.A.S.T offers you endless possibilities for creative discovery. Key Features: - Archimedean & Logarithmic Spirals: Dive into the classic forms of Archimedean spirals or the distinctive beauty of logarithmic (Bernoulli) spirals, each customizable to perfection. - Intuitive Controls: Adjust arc length, separation, rotation, segment count, and even color to create spirals that are uniquely yours. Every control slider is designed to let you shape each aspect with precision, from the spiral's curvature to the color that brings it to life. - Dynamic Colorization: Explore the full hue spectrum with seamless color transitions that allow you to bring your spirals to life in vibrant ways. From soft gradients to intense shades, your creations can be as colorful as you wish. - Expert Mode: Ready to go beyond? Activate Expert Mode and access advanced options that make every tweak feel like an art form. Experiment with rotations, mirrored patterns, and detailed configurations to find the perfect look. - Dark Mode & More: Customize your workspace with Dark Mode, make high-contrast visualizations, and adjust your settings to fit your unique style. F.A.S.T has been built to look great on both iPhone and iPad, adapting seamlessly to your device's orientation and dark/light settings. - Made for All Ages: Ideal for curious minds of all ages, F.A.S.T offers easy-to-use controls that make it engaging for young explorers and a true creative outlet for geometry enthusiasts. Whether you're creating spirals for inspiration, education, or pure enjoyment, F.A.S.T provides a delightful environment to explore the world of curves. For a lighter experience for children and babies, be sure to check out "F.A.S.T Baby" for simpler, touch-friendly spirals. Discover the beauty of mathematics and design. Let F.A.S.T inspire your creativity today!

About

Quantum

Explore the hidden world of particles with a real-time simulator. Model up to 10,000 particles and experiment with natural phenomena like crystallization and orbital mechanics. Customize interactions and visualize results dynamically.

Highlights
  • Real-time particle simulation
  • Model up to 10,000 particles
  • Simulate natural phenomena
  • Four distinct particle classes
  • Customizable rules editor
  • Dynamic visualizations
  • Interactive control
Features
Read full description

Experience the hidden world of particles Quantum is a real-time particle life sandbox for exploring emergent motion, artificial physics, and complex systems. Build fields with up to 10,000 particles, tune how classes attract or repel each other, and watch simple rules turn into flowing structures, swarms, or chaotic patterns. Why Quantum stands out: - Real-time particle simulation with four interacting particle classes. - Seamless 2D fields and perspective 3D volumes with touch rotation. - Rule editor for custom attraction and repulsion matrices. - Temperature, viscosity, solid/fluid edge behavior, and force tools. - Black hole and white hole tools for live interaction. - Save and load fields, rule sets, and color schemes. - P3 color support and vivid visual presets for generative art. Use Quantum as a physics toy, creative sandbox, teaching aid, or generative art lab. It is built for people who enjoy science, cellular automata, n-body systems, chaos, and beautiful simulations.

Screenshots

F.A.S.T4 screens
Quantum4 screens

Verdict

The call

The clearest difference is in-app purchases: F.A.S.T at none against Quantum's 6. F.A.S.T also leads on review sentiment (100% vs 81%) and iOS requirement (15.6 vs 26.0). Quantum's advantage is update cadence (every 5 weeks vs every 19 months) and ratings volume (151 vs 24). On price, rating, 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. Quantum sells 3 one-off in-app purchases. F.A.S.T asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Quantum holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Quantum has 151 ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 100% of F.A.S.T's written reviews are positive against 81% of Quantum's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

F.A.S.T ships an update every 19 months, Quantum every 5 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
F.A.S.T versus Quantum: the parameters behind the verdict, then further details
ParameterF.A.S.TQuantum
PriceFreeFree
Rating4.6 (24 ratings)4.8 (151 ratings) — better
Positive reviews100.0% of reviews — better81.3% of reviews
Number of ratings24151 — better
Update frequencyEvery 19 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size4 MB32 MB
Age rating4+4+
DeveloperPhilippe ZayGEORGY OSTROBROD

Customer experience

F.A.S.T

All ratings23 ratings
Positive91.3%
Neutral8.7%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Quantum

All ratings133 ratings
Positive96.2%
Neutral3.0%
Negative0.8%
Written reviews16 reviews
Positive81.3%
Neutral18.8%
Negative0.0%

In-app purchases

None

F.A.S.T

No in-app purchases

3 purchases

Quantum

One-time3
  • Developer tip2 variants$1.99
  • Developer tip2 variants$3.99
  • Developer tip2 variants$5.99

Questions

Is F.A.S.T free?
F.A.S.T is free to download, with no in-app purchases.
Is Quantum free?
Quantum is free to download, with in-app purchases available.
Which has better reviews, F.A.S.T or Quantum?
Quantum is rated higher. F.A.S.T averages 4.6 out of 5 from 24 ratings, while Quantum averages 4.8 from 151 ratings.
Do F.A.S.T or Quantum have ads?
Neither F.A.S.T nor Quantum shows ads.
Which is updated more often, F.A.S.T or Quantum?
F.A.S.T ships an update every 19 months, and Quantum every 5 weeks. Most recently, F.A.S.T was updated on October 24, 2026 and Quantum on October 30, 2026.

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