HashMemo | Thinking Habit

Learn. Think. Put it into your own words.

HashMemo is a learning app designed to help you gain knowledge and wisdom for life, while strengthening your ability to think for yourself.

Explore a wide range of topics, including great books, history, economics, science, languages, work, and relationships. Each activity invites you to pause, reflect, and put your thoughts into your own words.

■ Here’s how HashMemo works

Read a short insight.
Reflect on one question.
Write down what you think in your own words.

There is no single right answer.
Even a few lines, or just one, is enough.

■ Make knowledge your own

Knowledge does not truly become your own simply because you have learned it.

Why is it the way it is?
What do you think about it?
How does it connect to your life or work?

By repeating this process, knowledge gradually becomes part of the way you think, decide, and act.

■ What you can do with HashMemo

・Read short insights
・Reflect on thoughtful questions
・Write your thoughts in your own words
・Get hints from Hassy when you need them
・Check your answer score
・Look back on your past answers
・Bookmark activities you want to revisit
・Find related activities through skill tags
・Try activities in Japanese, English, Spanish, and Korean

■ Start with English

HashMemo includes English Studio, where you can build from basics such as the verb “be” and the simple present.

Each level includes 10 activities. You learn a pattern through a short explanation, answer a question, and create English sentences in your own words.

You can start with English and, as you continue, discover other topics such as work, relationships, economics, and history.

■ Your words belong to you

The answers and notes you write in HashMemo are not visible to other users unless you choose to share them.

You do not have to write for anyone else. Think freely, for yourself, and record your thoughts in your own words.

HashMemo is designed to give you space for uncertainty, unfinished thoughts, and ideas that are still taking shape.

■ Think for yourself—with AI

In the age of AI, finding information and getting answers is becoming easier than ever.

That makes the ability to think and make your own judgments more important than ever.

HashMemo’s AI companions, including Hassy, are not here to decide what your answer should be. They help you organize your thoughts, consider different perspectives, and think more deeply.

HashMemo is not about letting AI think for you. It is about thinking for yourself with AI.

■ Recommended for people who want to:

・Build a habit of thinking for themselves
・Turn knowledge into their own words
・Reflect on life, work, and relationships
・Explore great books, history, economics, and science
・Learn English from the basics
・Strengthen thinking skills for the age of AI
・Keep learning in a simple, sustainable way

■ I am the CEO of my own life.

Life is full of choices with no single right answer.

What will I learn?
What kind of work will I do?
Who will I spend time with?
What will I value most in life?

In the end, these choices are yours to make.

HashMemo helps you gain knowledge and wisdom for life, think for yourself, and build the habit of making your own choices.

You can browse activities for free without registration.
Start by choosing a topic that interests you and engaging with one question.