Two Links Double Pendulum vs CRT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
CRT
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A retro-style brick breaker reborn with dazzling neon lights and modern 3D flair. Easy to pick up, impossible to put down — this is the ultimate evolution of a classic arcade hit. Features: • Retro visuals with a fresh, modern twist • Classic 2D gameplay enhanced with 3D depth effects • Simple rules for anyone to enjoy • Flashy neon explosions and visual effects • Power-ups like multi-ball, beam shots, and paddle expansion Relive the charm of the 80s CRT era — now in the palm of your hand.
Screenshots
Verdict
The clearest difference is ads: Two Links Double Pendulum at none against CRT's shown. CRT's advantage is update cadence (daily vs every 47 months) and iOS requirement (15.0 vs 18.2). On price, 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.
Two Links Double Pendulum ships an update every 47 months, CRT daily. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.
| Parameter | Two Links Double Pendulum | CRT |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 47 months | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 18.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 281 MB | 183 MB |
| Age rating | 4+ | 4+ |
| Developer | Eliott Radcliffe | Takatsugu Fukushima |
In-app purchases
Two Links Double Pendulum
No in-app purchases
CRT
No in-app purchases
Questions
Is Two Links Double Pendulum free?
Is CRT free?
Do Two Links Double Pendulum or CRT have ads?
Which is updated more often, Two Links Double Pendulum or CRT?
Other comparisons
