Use Harken to remember anything for a lifetime.
Harken is way more efficient than conventional study methods, and supports all kinds of learning. You can put almost anything on a card—images, audio, inline code, or code blocks.
How does it work?
Harken uses a science-backed learning strategy called spaced repetition to optimize your studying, so you can learn more in less time.
With spaced repetition, you’ll review unfamiliar concepts more frequently than concepts you already know. This means you’ll learn exponentially faster with Harken than with traditional study methods.
To remember one concept for 20 years, how long would you need to study?
With traditional studying, you might review it once per week:
Week
1
1
Week
2
2
Week
3
3
Week
4
4
Week
5
5
Week
6
6
Week
7
7
Week
8
8
Week
9
9
Week
10
10
Week
11
11
But with Harken, as you get more familiar with a concept, your reviews will get more spaced out:
Week
1
1
Week
2
2
Week
5
5
Week
7
7
Week
11
11
Week
6
6
Week
7
7
Week
8
8
Week
9
9
Week
10
10
Week
11
11
Traditional flashcards:
2+ hours
Review once a week for 20 years
Harken cards:
5 minutes
Review on our spaced repetition schedule for 20 years
Use the Harken extension to remember everything you read
Now you can remember anything from any article on the web. The
Harken Chrome extension
allows you to quiz yourself on content from any article on the internet by using AI to generate questions with a single click. As you answer questions, easily add the ones you care about to your Harken for future review.
Why Harken?
Every feature is designed to support your long-term learning.
Flexible
Format however you like.
Harken’s card editor includes support for rich text, images, inline code, and code blocks. No matter what you’re trying to remember, Harken is here to support you.
Easy Access
Your cards go where you go.
Harken is a responsive web app, meaning you can review and create cards on any device.
Convenient
Easily import your Anki decks.
We know your time is valuable. If you’re already using Anki, you can import all your decks and review history to Harken in just a few clicks. You’ll be up and running in no time.
Motivating
Track your progress.
There’s no better feeling than a sense of progress. Harken’s stats page turns your reviews into useful charts to help you visualize just how much you’ve remembered.
