iPhone Screenshots


Don't let your brain decay, learn something new every day!
Receive a short daily video that will expand your thought, knowledge and skills.
Choose a category, watch the video, rate it and share your discoveries.
Replay your favorite videos and receive new recommendations from friends.

The videos are carefully selected, reviewed and categorized so that you will receive a great experience every time you use the app.

As Featured on:
Lifehacker - lifehacker.com/know-fast-teaches-you-something-new-every-day-with-shor-1748793717
Product Hunt - producthunt.com/tech/know-fast
AppAdvice - appadvice.com/appnn/2015/12/do-you-learn-something-new-every-day-with-know-fast-you-can
L'ADN (French) - ladn.eu/actualites/apprendre-format-court-sur-know-fast,article,29134.html
iCulture (Dutch) - iculture.nl/know-fast-ios-iedere-dag-iets-nieuws-leren/
Geektime (Hebrew) - geektime.co.il/know-fast-israel-app-video-content/
and more..

New Knowledge + Short Videos + Daily Habit = Happiness
Science has proven that lifelong learning is a recipe for becoming happier, healthier and smarter.
We are all familiar with the idiom “A picture is worth a thousand words” referring to the fact that a complex idea is conveyed much more effectively and quickly using a single still image compared to a description. Watching educational short videos offers a whole new dimension to learning.
Know Fast combines these concepts and allows you to create a new habit of improving your understanding of the world surrounding us.

See also:

What's New

Version 1.1.5

Minor bug fixes on loading screen and video sharing by email.

Ratings and Reviews

I used to love this app. NOT any more!


So it would ring every day at 12. It was loud, but it was like my 12 pm alarm. Then they changed the notification. It rings sometimes at 12, but not every day. If I opened my phone at any time after 12, it rang again! Loud and obnoxious. I can't open my phone in the office if it's any time after 12. So I deleted the app. Pity.

Developer Response

Hello Artiste212,
We are sorry to hear you have deleted the app :(
Usually if you set a notification to 12 than it will pop at 12. Sometimes when there is no connection or the device was turned off, the notification can pop once connection was gained or device turned on. In any case you can turn off the sound of the notification from the settings screen. If you would like to reinstall, we will be glad to assist you with the settings.

You can contact us at

I've learned lots of new stuff! Great app.


Short videos, everyday. Quick and to the point. For people who wants to learn fast. Most videos are very interesting and diverse.

Great way to learn something new every day!


The concept of this app is EXTREMELY simple: learn something new every single day in a very short period of time.

Basically, you set a time every day that this app will send a video to you. Typically, you won't find a video over 3 minutes long, which is perfect. In that 3 minutes, you'll learn something. It's seriously that simple.

Now, I'm not saying you're going to become a rocket scientist from using this app, but you'll learn something new every day, which will always keep your brain on its toes and you can't complain about learning.


boaz saragossi
15.4 MB
Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, Portuguese
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
© 2015 Know Fast Inc
In-App Purchases
  1. Unlimited videos in all categories $2.99
  2. All categories active $0.99
  3. Two videos every day. $1.99


  • Family Sharing

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

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