Rainstick vs Chaos Studies
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rainstick
Turn your phone into a virtual rainstick. Simply flip your device to initiate a rain sound effect. Adjust the tilt to control the speed and intensity of the falling rain.
- Virtual rainstick simulation
- Flip device to activate rain
- Tilt control for speed
- Realistic sound effects
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Volume up! Your phone is now a rainstick. Flip it to make the rain fall. Change the tilt to speed it up or slow it down
Chaos Studies
Explore mesmerizing 3D visualizations of strange attractors, representing complex mathematical systems. Interact with these dynamic point clouds through touch and device tilt, accompanied by immersive spatial audio. Offers a meditative experience with no scores or goals, focusing on mathematical beauty.
- 3D point cloud visualization
- Interactive orbit and zoom controls
- Device tilt parallax effect
- Nine unique strange attractors
- Spatial 3D ambient soundtrack
- Meditative slow drawing mode
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Chaos Studies transforms your device into a window to another dimension — a fully three-dimensional journey into strange attractors. WHAT ARE STRANGE ATTRACTORS? Chaotic systems are deterministic — governed by precise mathematical equations — yet practically unpredictable. The tiniest difference in starting conditions leads to wildly different outcomes. Strange attractors are the shapes these systems trace over time: infinite trajectories that never repeat exactly, yet stay bound within a beautiful, complex form. TRUE 3D EXPLORATION Each attractor is rendered as a living point cloud in three dimensions. Drag to orbit around it. Pinch to dive deeper. Tilt your device and watch the parallax shift — the attractor responds to your movement in space. The depth-of-field effect draws your eye to the focal point while distant particles blur softly. NINE STRANGE ATTRACTORS Each attractor represents a different dynamical system discovered by mathematicians and scientists: Lorenz, Rössler, Aizawa, Burke-Shaw, Halvorsen, Chen, Nose-Hoover, Sprott B, and Dadras. SPATIAL AUDIO THAT SURROUNDS YOU An original ambient soundtrack is positioned in 3D space around the attractor. As you rotate your view, the music shifts — stems pan from left to right, front to back. Use headphones for the full spatial experience. Choose from four presets: Calm, Crisp, Cine, or Driven. DEVICE-RESPONSIVE CONTROLS • Drag to rotate freely in 3D • Pinch to zoom in and out • Tilt for real-time parallax depth • Tap to trigger an explosion and rebirth • Toggle between light and dark modes MEDITATIVE MODE Enable slow drawing speed for an even more contemplative experience. Chaos Studies is designed as a moment of calm — a window into the hidden order within chaos. No scores. No goals. Just mathematical beauty unfolding endlessly in your hands.
Screenshots
Verdict
The clearest difference is price: Rainstick at Free against Chaos Studies's $1.99. Rainstick also leads on iOS requirement (15.6 vs 17.6). On rating, ratings volume, ads and in-app purchases 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
Rainstick is free to download; Chaos Studies costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Rainstick against 5.0 for Chaos Studies. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | Rainstick | Chaos Studies |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 12 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 10 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Millerd | Alexander Kohlhofer |
In-app purchases
Rainstick
No in-app purchases
Chaos Studies
No in-app purchases









