Espiro vs Two Links Double Pendulum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Espiro
Create unique roulette art with this drawing application. It offers an unbounded canvas, smooth animations, and a variety of wheel options to design intricate patterns. Save and share your creations easily with friends or browse an in-app gallery for inspiration.
- Unbounded canvas with custom background color
- Smooth wheel animation for curve generation
- Combine multiple wheel types and sizes
- Over 150 wheel variations
- Control line color, width, and opacity
- Save and share drawings
- In-app user gallery
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About: Espiro is a simple and practical drawing app for creating roulette art without the hustle of using papers and pencils. It has all you need to draw, save and share your art creation with ease in most enjoyable way possible. Features: - Draw with your finger tip on an unbounded canvas with a background color of your choice. - Enjoy the satisfaction of smooth wheel animation that draws coordinated eye catchy curves. - Combine multiple wheel types and sizes to create harmonic patterns. - Get creative with over 150+ wheel variations. - Control lines color, width and opacity. - Save your drawings on your mobile device local storage. - Show your friends your art creations on your favourite social media platform. - Get inspired by browsing in-app users gallery.
Two Links Double Pendulum
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Two Links brings one of physics' most beautiful chaotic systems to life. Watch a double pendulum swing, twist, and spiral in real-time 3D — then place it on your floor in Augmented Reality and walk around it. Features • Real-time double pendulum physics (RK4 integration) • AR mode — anchor the pendulum on any flat surface • Orbit the 3D scene freely or let it run hands-free • Adjust link length, pivot position, density, and color • Particle trail from the second link tip • Night sky environment with the Moon and Earth • Pause, shuffle, and watch the chaos reset
Screenshots
Verdict
The clearest difference is update cadence: Espiro at monthly against Two Links Double Pendulum's every 47 months. Espiro also leads on iOS requirement (7.0 vs 18.2). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Espiro ships an update monthly, Two Links Double Pendulum every 47 months. Both last shipped on October 6, 2026.
| Parameter | Espiro | Two Links Double Pendulum |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (8 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Monthly — better | Every 47 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 123 MB | 281 MB |
| Age rating | 4+ | 4+ |
| Developer | The Orbit Company for Software Development | Eliott Radcliffe |
In-app purchases
Espiro
No in-app purchases
Two Links Double Pendulum
No in-app purchases
Questions
Is Espiro free?
Is Two Links Double Pendulum free?
Do Espiro or Two Links Double Pendulum have ads?
Which is updated more often, Espiro or Two Links Double Pendulum?
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