Comparison

Double Pendulum vs Quantum

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

Head to head
About

Double Pendulum

Explore the fascinating world of mechanical chaos with this app. It accurately simulates the physics of a frictionless double pendulum, allowing you to witness complex and unpredictable motion. Discover the beauty of chaotic systems through interactive exploration.

Highlights
  • Frictionless double pendulum simulation
  • Accurate physics engine
  • Exploration of chaotic motion
  • Interactive visualization
  • Educational tool for physics
Features
Read full description

The double pendulum is a simple mechanical system that displays chaos. The motion of the pendulum arms can be complex and unpredictable, with even minute changes leading to very different trajectories. This app accurately simulates the physics of a frictionless double pendulum, so you can explore and enjoy the complexity and beauty of mechanical chaos.

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

Double Pendulum1 screens
Quantum4 screens

Verdict

The call

The clearest difference is in-app purchases: Double Pendulum at none against Quantum's 6. Double Pendulum also leads on review sentiment (100% vs 81%) and iOS requirement (11.2 vs 26.0). Quantum's advantage is ratings volume (150 vs 3). 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. Double Pendulum asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Double Pendulum against 4.8 for Quantum. That said, the two scores are not equally well evidenced: Quantum has 150 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 100% of Double Pendulum's written reviews are positive against 81% of Quantum's.

Scorecard5 real differences · 5 level
Double Pendulum versus Quantum: the parameters behind the verdict, then further details
ParameterDouble PendulumQuantum
PriceFreeFree
Rating4.7 (3 ratings)4.8 (150 ratings) — better
Positive reviews100.0% of reviews — better81.3% of reviews
Number of ratings3150 — better
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.2 — better26.0
Further details — not scored
Size8 MB32 MB
Age rating4+4+
DeveloperAndrei FrolovGEORGY OSTROBROD

Customer experience

Double Pendulum

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 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

Double Pendulum

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 Double Pendulum free?
Double Pendulum 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, Double Pendulum or Quantum?
Quantum is rated higher. Double Pendulum averages 4.7 out of 5 from 3 ratings, while Quantum averages 4.8 from 150 ratings.
Do Double Pendulum or Quantum have ads?
Neither Double Pendulum nor Quantum shows ads.

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