Comparison

Double Pendulum vs Physarum

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

Physarum

Explore the fascinating emergent behavior of slime molds through a visually rich simulation. Adjust agent parameters, influence growth with intuitive controls, and discover complex, mesmerizing patterns.

Highlights
  • Slime mold behavior simulation
  • Autonomous agent control
  • Adjustable agent parameters
  • Maze solving and network formation
  • Vibrant color modes
  • Interactive system manipulation
Read full description

Explore artificial life through a living, flowing simulation inspired by Physarum polycephalum, the slime mold famous for forming networks, solving paths, and showing intelligence without a brain. Physarum turns simple local rules into complex motion. Thousands of agents sense trails, turn, move, and deposit new traces. As the field evolves, branching networks, waves, and organic textures emerge in real time. Use Physarum to: - Tune sensor distance, turn angle, movement, and trail strength - Paint into the field and guide the simulation by touch - Explore chaotic, branching, and self-organizing patterns - Save and restore interesting agents, fields, and rules - Create vivid generative visuals with color controls It is part science toy, part generative art studio, and part meditative visual instrument. Whether you study emergent systems, teach artificial life, or simply enjoy hypnotic motion, Physarum gives you a hands-on way to watch complexity grow from simple behavior.

Screenshots

Double Pendulum1 screens
Physarum4 screens

Verdict

The call

The clearest difference is in-app purchases: Double Pendulum at none against Physarum's 6. Double Pendulum also leads on iOS requirement (11.2 vs 26.0). Physarum's advantage is rating (4.8 vs 4.5) and ratings volume (27 vs 2). On price, review sentiment, 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. Physarum sells 3 one-off in-app purchases. Double Pendulum asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Physarum holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Physarum has 27 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Scorecard5 real differences · 5 level
Double Pendulum versus Physarum: the parameters behind the verdict, then further details
ParameterDouble PendulumPhysarum
PriceFreeFree
Rating4.5 (2 ratings)4.8 (27 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings227 — 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%

Physarum

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Double Pendulum

No in-app purchases

3 purchases

Physarum

One-time3
  • Small developer tip2 variants$1.99
  • Medium developer tip2 variants$3.99
  • Big developer tip2 variants$5.99

Questions

Is Double Pendulum free?
Double Pendulum is free to download, with no in-app purchases.
Is Physarum free?
Physarum is free to download, with in-app purchases available.
Which has better reviews, Double Pendulum or Physarum?
Physarum is rated higher. Double Pendulum averages 4.5 out of 5 from 2 ratings, while Physarum averages 4.8 from 27 ratings.
Do Double Pendulum or Physarum have ads?
Neither Double Pendulum nor Physarum shows ads.

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