Notes + spaced repetition for long-term learning

Turn notes intolong-termknowledge.

Yuhimo is a lightweight notes app with spaced repetition. Organize normal notes, choose the pages you want to learn, and review them at adaptive intervals.

For students, teachers, developers, and self-learners who want to retain what they learn.

  • Structured notes
  • Spaced repetition
  • AI drafts
  • Offline mode

Review & Learn

Learn new material and answer questions with spaced repetition.

Capture & Organize

Create structured notes and organize knowledge your way.

Track Progress

See how your knowledge evolves over time.

Start for Free

Free to use · No credit card required

See how it works

Notes are easy. Retention is hard.

Most notes eventually become passive archives. Information is saved, but rarely revisited at the right moment to truly stay in memory.

Passive Knowledge

  • +Saved but forgotten
  • +No review system
  • +Information overload
  • +Becomes an archive
->

Active Knowledge

  • +Intentional repetition
  • +Long-term retention
  • +Active recall
  • +Knowledge compounds

A simple system for long-term knowledge.

Write → Enable learning → Review → Remember

A practical way to use spaced repetition with notes.

1. Capture knowledge

Write notes, or generate a first draft from a topic or file. You edit before anything is saved.

2. Return at the right time

Yuhimo schedules reviews using adaptive spaced repetition.

3. Retain over time

Reinforce what matters. Forget less. Remember more.

Organize your knowledge

Organize knowledge your way.

Structure topics through nested pages and build a personal knowledge base that grows with you.

  • Nested pages

    Create a clear hierarchy for any topic or area of knowledge.

  • Any page. Any depth.

    Add as many pages and subpages as you need.

  • Learning pages

    Turn important notes into learning pages with spaced repetition.

  • Easy to organize

    Drag, drop, and rearrange to keep things structured.

AI study drafts

Start from a topic, not a blank page.

Turn a topic, pasted text, or a PDF/DOCX file into first-draft pages. You review the outline, then the pages, then save. Learning stays optional.

  • Topic, paste, or file

    Describe a topic, paste your notes, or upload a PDF or DOCX.

  • Nothing is saved yet

    Review the outline and generated pages before they enter your notes.

  • Optional questions

    Add recall prompts on the new pages, or skip them.

  • Learning stays optional

    Saving drafts does not enable reviews. You choose what to learn.

Learning sessions

Review knowledge without breaking context.

Learn directly from your notes using self-assessment and optional AI-generated questions. Review whole pages and topics with spaced repetition without flashcards.

  • Self-assessment

    Review your page and rate your own recall with Again, Hard, Good, or Easy.

  • AI-generated questions

    Generate review questions from your page content in seconds.

  • Full-page context

    Open the original note anytime during review.

  • Smart scheduling

    Yuhimo adapts future review intervals based on your memory stability.

Knowledge insights

Track how your knowledge evolves.

Understand review consistency, memory stability, difficult topics, and long-term learning patterns.

  • Memory stability

    See which topics stay strong over time.

  • Hardest topics

    Identify areas that require more reinforcement.

  • Review patterns

    Visualize consistency and learning activity.

  • Long-term retention

    Build durable knowledge instead of passive archives.

A notes app first. A learning system when you need it.

Yuhimo stays intentionally lightweight. Focused on writing, organizing, and retaining knowledge without workspace complexity. See how notes and spaced repetition work together.

See how it works ->

Learning Pages

Turn any note into a long-term learning page.

Knowledge Tree

Organize knowledge through nested pages and topic branches.

Review a topic branch

Review a selected topic branch, not just today’s queue.

Adaptive Spaced Repetition

Inspired by FSRS, designed for long-term retention.

AI Study Drafts

Turn a topic or file into first-draft pages you can edit and save.

AI-Powered Questions

Generate review questions from your notes in one click.

Detailed Statistics

Track progress, stability, difficulty and more.

Offline Mode

Access your cached notes without internet.

Backups & Import/Export

Back up and restore your knowledge base.

The value of knowledge is not in collecting it.
It's in remembering and using it.

For students, teachers, developers, and self-learners who want to retain what they learn.

Start for Free

Free to use · No credit card required