Chunkker

Learn smarter, not harder.

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📉🧠 Did you know?

People forget 50-70% of new information within 24 hours without reinforcement.1

This is called the "forgetting curve" - discovered by psychologist Hermann Ebbinghaus in 1885.2 Without proper review, most information simply disappears.

1 Ebbinghaus' Forgetting Curve - validated across multiple studies

2 Murre, J. M., & Dros, J. (2015). Replication and Analysis of Ebbinghaus' Forgetting Curve. PLOS ONE

🤔 Imagine what you could achieve if you didn't forget so much.

Every day, you're exposed to 34GB of information.

By next week, 90% of it will be gone.1

But here's the thing: strategic spaced repetition dramatically improves long-term retention.2

1 Ebbinghaus Forgetting Curve | USC Marshall School study on daily information exposure

2 Cepeda, N. J., et al. (2006). Distributed practice in verbal recall tasks. Psychological Bulletin, 132(3)

Let's learn more about spaced repetition

Diffuse thinking

After you answer a card, the FSRS algorithm calculates the optimal time to review it again based on your performance. Daily practice with strategic breaks allows the information to percolate in your brain, strengthening neural connections through diffuse thinking.1

Day 0 Learn Day 1 Day 2 Day 3
Got it right → Review in 3 days
Got it wrong → Review in 1 day
The key benefit: You don't have to review this card again until your next session. The algorithm handles all the timing, making your study process effortless.2

1 Li, Y., et al. (2025). Time-dependent consolidation mechanisms of durable memory in spaced learning. Communications Biology

2 FSRS Algorithm Documentation - Open Spaced Repetition

Beyond just learning—brain health benefits

🧠 Promotes Brain Plasticity

Deliberate memory practice strengthens neural pathways and supports adaptive brain reorganization.1

đź’Ş Improves Untrained Tasks

Memory training shows transfer effects to other cognitive tasks—modest but real improvements in overall memory function.2

🎯 Learn While You Train

Why memorize nonsense when you can learn useful information while supporting cognitive health?

1 Smolen, P., et al. (2016). The right time to learn: mechanisms and optimization of spaced learning. Nature Reviews Neuroscience

2 Nguyen, L., et al. (2020). Long-Term Efficacy of Working Memory Training in Healthy Older Adults. Journal of Cognitive Enhancement

How to use Chunkker

Forward any content—articles, PDFs, podcasts, conversations—and Chunkker transforms it into actionable knowledge.

Chunking is the process of breaking complex information into meaningful, connected pieces that your brain can more easily process and remember.1 By grouping related ideas together, you can hold more in working memory and build stronger neural patterns.

Content transformation flow diagram Content transformation flow diagram

Chunkker intelligently categorizes information into:

Facts Key data points and information
Skills Practical techniques and how-to knowledge
Principles Core concepts and mental models
Then all you have to worry about is your daily review routine.

1 Oakley, B.A. & Sejnowski, T.J. (2019). What we learned from creating one of the world's most popular MOOCs. npj Science of Learning

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