Comparison

True Binary Clock Free vs Two Links Double Pendulum

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

True Binary Clock Free

This app displays time using binary code, offering both true binary and BCD modes. It includes an optional digital clock display and supports 12 or 24-hour formats with customizable colors. It's designed to be educational and visually appealing.

Highlights
  • True binary clock mode
  • BCD binary clock mode
  • Optional digital clock
  • 12/24 hour time format
  • Configurable colors
  • Disable screen lock option
Features
Read full description

Geek or no geek, everybody should own a binary clock, even if it's just for show. This clock gives you the best of both worlds, a binary clock and a digital clock in one, which makes it very easy to learn reading binary clocks. * True binary clock mode * BCD binary clock mode * Optional digital clock * 24 hr (military) time mode * 12 hr (am/pm) time mode * Configurable colors * Option to disable screen lock The clock supports 2 types of binary clocks, true binary in portrait orientation and BCD in landscape. For more information about binary clocks, see: http://en.wikipedia.org/wiki/Binary_clock Note, this is an ad supported lite version of True Binary Clock, if you like it, check out the full version.

About

Two Links Double Pendulum

Features
Read full description

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

True Binary Clock Free4 screens
Two Links Double Pendulum3 screens

Verdict

The call

The clearest difference is iOS requirement: True Binary Clock Free at 9.0 against Two Links Double Pendulum's 18.2. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

True Binary Clock Free ships an update every 24 months, Two Links Double Pendulum every 47 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

Scorecard1 real difference · 9 level
True Binary Clock Free versus Two Links Double Pendulum: the parameters behind the verdict, then further details
ParameterTrue Binary Clock FreeTwo Links Double Pendulum
PriceFreeFree
Rating3.9 (12 ratings) — better—
Positive reviews78.3% of reviews—
Number of ratings12 — better—
Update frequencyEvery 24 months — betterEvery 47 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better18.2
Further details — not scored
Size9 MB281 MB
Age rating4+4+
DeveloperC LoepEliott Radcliffe

In-app purchases

None

True Binary Clock Free

No in-app purchases

None

Two Links Double Pendulum

No in-app purchases

Questions

Is True Binary Clock Free free?
True Binary Clock Free is free to download, with no in-app purchases.
Is Two Links Double Pendulum free?
Two Links Double Pendulum is free to download, with no in-app purchases.
Do True Binary Clock Free or Two Links Double Pendulum have ads?
Neither True Binary Clock Free nor Two Links Double Pendulum shows ads.
Which is updated more often, True Binary Clock Free or Two Links Double Pendulum?
True Binary Clock Free ships an update every 24 months, and Two Links Double Pendulum every 47 months. Most recently, True Binary Clock Free was updated on October 7, 2026 and Two Links Double Pendulum on October 6, 2026.

Other comparisons