Double Pendulum Simulation vs Shor's algorithm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Double Pendulum Simulation
Explore the chaotic and dynamic behavior of a double pendulum. This app uses the Runge-Kutta method to solve differential equations, allowing you to influence the pendulum's motion by tilting your device.
- Double pendulum simulation
- Runge-Kutta method solver
- Chaotic dynamics exploration
- Device tilt interaction
- Educational physics tool
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In mathematics, in the area of dynamical systems, a double pendulum is a pendulum with another pendulum attached to its end, and is a simple physical system that exhibits rich dynamic behavior. The motion of a double pendulum is governed by a set of coupled ordinary differential equations. For certain energies its motion is chaotic. This application solves these differential equations using the Runge-Kutta method for the time stepping. You can influence the movement of the pendulum by holding your device in different positions.
Shor's algorithm
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This app is a demonstration of Shor's algorithm. You can get some help to understand Shor's algorithm.
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Verdict
The clearest difference is in-app purchases: Double Pendulum Simulation at none against Shor's algorithm's 3. Double Pendulum Simulation also leads on iOS requirement (7.0 vs 16.0). Shor's algorithm's advantage is update cadence (every 6 months vs every 73 months). On price, 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
Both are free to download. Shor's algorithm sells 3 one-off in-app purchases. Double Pendulum Simulation asks for nothing beyond the download.
Double Pendulum Simulation ships an update every 73 months, Shor's algorithm every 6 months. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.
| Parameter | Double Pendulum Simulation | Shor's algorithm |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 37.5% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 73 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 7.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 0 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | ManneTroll Solutions | Sungjun Kim |
In-app purchases
Double Pendulum Simulation
No in-app purchases
Shor's algorithm
- coffee$0.99
- latte$4.99
- whopper set$9.99
Questions
Is Double Pendulum Simulation free?
Is Shor's algorithm free?
Do Double Pendulum Simulation or Shor's algorithm have ads?
Which is updated more often, Double Pendulum Simulation or Shor's algorithm?
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