Learn to tell the time in seconds and minutes with Albert Einstein, voiced by the sensational Stephen Fry!

**Currently supports English language only**

Play with history’s greatest minds! Designed alongside education specialists, this app brings back to life the most iconic figure in science: Albert Einstein, voiced by Stephen Fry!

Einstein’s Clock is a completely free app with no in-app purchases, no subscriptions or signups and can be played offline, with no internet or Wi-Fi connectivity required.

Taught by the creator of the theory of relativity himself, and presented as an interactive 3D character, a dancing, quirky Einstein will be your very own personal tutor guiding you through The Cadence of Clocks, helping you when you struggle, and telling you funny jokes along the way.

Move hour and minute hands across 8 different levels and learn how to tell the time in different configurations: O'Clock, quarter and half, and past and to.

Tutorials and on-screen guidance allow for children of all abilities to enjoy this educational adventure of a lifetime!

Einstein’s Clock is an introduction to the Human Heroes universe, with the full Einstein experience covering relativity, rhythms, pendulums, gravity, Einstein’s fascinating life and so much more in Human Heroes Einstein On Time, available on the App Store today!


- A realistic live-show experience: High-quality visuals and dynamic speech system complimenting the luxurious voice performance by Stephen Fry, who recorded dozens of lines for this game!

- Master reading the clock: Covering a Key-Stage National Curriculum area

- Scaffolding teaching techniques used throughout. You are sure to succeed as Einstein steps in with on-screen visual and verbal help when you struggle.

- Travel through time by moving the clock hands backward or forward and witness the effects of time on the succession of day and night.

- Learn about different types of clocks.

And much more!

All facts and figures have been rigorously checked and researched by subject matter experts to ensure scientific, historical and biographical accuracy.

About Human Heroes:

‘Einstein’s Clock’ is the third game in a children’s educational app series – “Human Heroes” - Created by edtech startup KalamTech, centred on history’s greatest minds. From the philosophers of ancient Greece to the giants of science, renowned artists, composers, mathematicians, authors, and architects – these inspirational characters are brought back to life in a futuristic theatrical setting to perform a captivating live-show experience covering their life and their famous discoveries.

Forthcoming apps will explore the legacies of Leonardo da Vinci, Isaac Newton, Mozart, Ada Lovelace, Aristotle, Jane Austen and many more.

What’s New

Version 2.0.1

Our clock-tastic adventure is smoother and quicker than ever, with several performance optimizations and enhancements.

Ratings and Reviews

4.7 out of 5
10 Ratings

10 Ratings

Kw19812015 ,


This game is my favorite game in the whole world 🗺 😻 why did he stick out his 👅 at me

Woludbegreat ,

Rather have a version without ads

Very distracting ads pop up after a level and you cannot “leave” the ad until it is done. Also, the add asks you to download the game it is showing you. This will not work in a school setting when trying to teach children to tell time.

sportygirl1112 ,

Love it

Myself i love Einstein and it is so cool to here his voice

App Privacy

The developer, Human Heroes Ltd, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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