Simple note-taking and flashcards!

A hierarchical note-taking app for free.

Organize your thoughts like a mind map in a tree structure and attach flashcards to your notes.
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Hierarchical note-taking without limits

You can keep breaking down topics into sub-topics, as granular as you need.
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Flashcards in your notes

Embed one or more flashcards directly within any note.

Then, choose to study your entire notebook, or focus your review on specific branches.
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Cloud Sync (optional subscription)

Enjoy seamless, automatic backup and syncing across your devices with a Cloud Sync subscription.

Compatible with Android, iOS, Mac, Windows and Linux.

US$ 9.50 per year (US$ 0.80 per month)
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Deeper Dive: The Science Behind HappyNote

For learners, researchers, and curious minds who want to understand our methodology

HappyNote combines two proven learning methodologies that transform how you retain information:

Hierarchical Organization & Natural Thinking

Our tree structure mirrors how your brain naturally organizes information. Research in cognitive science shows that hierarchical organization:

  • Improves information retrieval by 40% compared to linear notes
  • Helps identify relationships between concepts more effectively
  • Supports both big-picture thinking and detailed analysis

Spaced Repetition & Active Recall

Embedded flashcards use spaced repetition algorithms proven to:

  • Increase long-term retention by up to 200%
  • Reduce study time while improving results
  • Move knowledge from short-term to long-term memory efficiently

Most learners juggle separate apps for notes and flashcards. Here's why that approach fails:

The Context Problem

When notes and flashcards live in different apps, you lose crucial context. HappyNote keeps everything together so you remember why you created each flashcard and how it connects to your broader understanding.

The Workflow Disruption

Switching between apps breaks your focus and adds unnecessary steps. Our integrated approach means you create flashcards while taking notes, when the context is freshest in your mind.

Comparison with Popular Alternatives

Vs. Evernote + Anki: No more manual copying between apps. Automatic synchronization between your notes and practice sessions.

Vs. Notion: Purpose-built for learning with built-in spaced repetition, not just organization.

Vs. Obsidian: Integrated flashcards without plugin complexity or setup hassle.

HappyNote excels in these specific learning situations:

Academic Studies

Break down complex subjects like biology, history, or programming into manageable hierarchies. Embed key term flashcards directly in your lecture notes.

Professional Development

Organize project documentation, research findings, or skill development. Create flashcards for important concepts, procedures, or technical terms.

Language Learning

Structure vocabulary by themes (food, travel, business) and embed pronunciation practice or grammar rules directly in context.

Research & Content Creation

Organize sources, quotes, and ideas hierarchically. Create flashcards to remember key statistics, citations, or conceptual frameworks.

Ready to transform your learning? Here's how to get the most from HappyNote:

Week 1: Foundation

Start with one subject. Create your main topics, then break them down into sub-topics. Don't worry about perfection - you can always reorganize.

Week 2: Active Learning

Begin adding flashcards to your most important notes. Focus on key concepts, definitions, and connections between ideas.

Week 3: Routine Building

Establish a daily review habit. Even 10 minutes with your flashcards dramatically improves retention.

Week 4: Mastery

Explore advanced features like focused branch studying and cross-notebook connections.

Pro Tip: Watch our video tutorials to see these techniques in action and master HappyNote faster.

HappyNote
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