Comparison

tdc. vs Learn the Clock

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

Head to head
About

tdc.

Features
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explore verified student discounts, travel assistant, internships, career opportunities, and study abroad resources — all available FREE inside the app. We don’t sell products and there are no payment or purchase features. Our mission is simple: help students save money, discover opportunities, and build their future.

About

Learn the Clock

Features
Read full description

Drag the hands with your finger and learn to read a clock. The app asks for a time, such as "Set the clock to 7:30." You grab the hour hand and the minute hand and move them. The time is set the moment you lift your finger. Getting it wrong does not end anything. The first miss tells you which hand is off. The second miss moves the hands to the right place and shows you. NINE KINDS OF QUESTION Read o'clock / half past / 5 min steps / 1 min steps Calculate minutes later / minutes earlier / time passed Notation AM and PM / 24-hour They are arranged from easiest to hardest, but you can start anywhere. Nothing is locked behind finishing something else. ANALOG AND DIGITAL AT THE SAME TIME Choose Clock, Digits, or Both. The digital display is a split-flap board, the kind where the top half falls to reveal the next number. Pick Both and the digits move as you move the hands, so "short hand between 7 and 8, long hand on 9" and "7:45" become the same thing. WHAT YOU CAN DO - Drag the hands. The time is set when you lift your finger - One-minute precision - The hour rolls over when the minute hand passes 12, like a real clock - A missed hand lights up in orange - Switch between English and Japanese - Turn the music and sound effects on or off - Your display and language choices are remembered for next time FREE, WITH NO IN-APP PURCHASES Every question is free. There are no in-app purchases and no subscriptions, and nothing is locked behind a paywall. ABOUT THE ADS A banner sits at the very bottom of the screen. It is kept clear of the clock face and the Done button, and it never interrupts a question. Ad content is limited to the general audience (G) rating.

Screenshots

tdc.4 screens
Learn the Clock4 screens

Verdict

The call

The clearest difference is ads: tdc. at none against Learn the Clock's shown. tdc. also leads on update cadence (every 2 weeks vs monthly). On price, in-app purchases, device support and iOS requirement 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

tdc. ships an update every 2 weeks, Learn the Clock monthly. The most recent releases landed on October 1, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 4 level
tdc. versus Learn the Clock: the parameters behind the verdict, then further details
Parametertdc.Learn the Clock
PriceFreeFree
Update frequencyEvery 2 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size94 MB32 MB
Age rating4+4+
DeveloperAbdul Majid Shah BukhariYoshihide Maehama

In-app purchases

None

tdc.

No in-app purchases

None

Learn the Clock

No in-app purchases

Questions

Is tdc. free?
tdc. is free to download, with no in-app purchases.
Is Learn the Clock free?
Learn the Clock is free to download, with no in-app purchases.
Do tdc. or Learn the Clock have ads?
Learn the Clock shows ads; tdc. does not.
Which is updated more often, tdc. or Learn the Clock?
tdc. ships an update every 2 weeks, and Learn the Clock monthly. Most recently, tdc. was updated on October 1, 2026 and Learn the Clock on October 18, 2026.

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