Comparison

True Binary Clock Free vs Train Clock

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

Train Clock

Read full description

This is an app that helps you learn how to read a clock. The minute hand is a Shinkansen, the hour hand is a conventional train, and the second hand is a steam locomotive. The trains are displayed randomly. When you tap the Shinkansen icon at the bottom of the screen, the Shinkansen used as the minute hand changes to another Shinkansen. When you tap the conventional train icon, the train used as the hour hand transforms into another train. At the top of the screen, trains stop at a station at random. Every two minutes, a train departs.

Screenshots

True Binary Clock Free4 screens
Train Clock4 screens

Verdict

The call

The clearest difference is iOS requirement: True Binary Clock Free at 9.0 against Train Clock's 13.0. 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, Train Clock every 23 months. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

Scorecard1 real difference · 9 level
True Binary Clock Free versus Train Clock: the parameters behind the verdict, then further details
ParameterTrue Binary Clock FreeTrain Clock
PriceFreeFree
Rating3.9 (12 ratings) — better—
Positive reviews78.3% of reviews—
Number of ratings12 — better—
Update frequencyEvery 24 monthsEvery 23 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size9 MB143 MB
Age rating4+4+
DeveloperC Loephiroyuki uchida

In-app purchases

None

True Binary Clock Free

No in-app purchases

None

Train Clock

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 Train Clock free?
Train Clock is free to download, with no in-app purchases.
Do True Binary Clock Free or Train Clock have ads?
Neither True Binary Clock Free nor Train Clock shows ads.
Which is updated more often, True Binary Clock Free or Train Clock?
True Binary Clock Free ships an update every 24 months, and Train Clock every 23 months. Most recently, True Binary Clock Free was updated on September 28, 2026 and Train Clock on September 30, 2026.

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