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Retainzy
A LITTLE AI HELP. A LASTING LEARNING HABIT.

So much saved. Still hard to recall.

A note here. A PDF there. Screenshots and saved links everywhere. Your next great idea shouldn’t get lost in the pile.

Start learning Try a card

Illustrative workflow · nothing uploaded or saved Scroll to explore

AI-powered learning cards.Spaced repetition. Lasting knowledge.
Capture Understand Remember
FROM THE STORY TO A SMALL FIRST STEP

See the idea.
Then try recalling it.

Your knowledge becomes useful when you practise bringing it back. Try a sample card below, then build your own collection with notes, images or Gemini-assisted PDF drafts.

  • Recall before revealing the answer.
  • Give honest review feedback.
  • Return to the ideas worth keeping.
Make your first real card
Retainzy Interactive preview
YOUR DAILY MOMENT

A little learning, every day.

Sample card 1 of 3
Learning · The basics

What is spaced repetition?

Take a moment. What do you remember?

Reveal the answer, then tell us how it went.

Sample only · nothing is saved
POWERED BY GEMINI

A little AI help.
A lot more clarity.

More than a place to store notes. Retainzy's AI tools help you turn documents into cards, refine what you learn, find your saved knowledge, and see what your recall is missing.

Explore AI in your workspace
Retainzy AIYour learning, with a little assistance.
EXAMPLE
Sample PDF · Learning notes · page 3
YOU

Create a short card about active recall from these notes.

EDITABLE CARD DRAFT

What is active recall?

Trying to retrieve an answer from memory before checking your notes or revealing the answer.

  • One clear idea to practise
  • Source context to check before saving
Based on the sample document excerpt
You review. You decide what stays.

Illustrative examples only. No live AI requests, uploads or account changes occur here.

Work with your source material Check and edit AI drafts Practise your own recall
A SIMPLE FLOW. A LASTING HABIT.

From a new idea
to “I know this.”

Retainzy connects the things most learning tools leave apart:
collecting knowledge, understanding it, and coming back to it.

CAPTURE WHAT MATTERS

Good ideas deserve more than a bookmark.

Write a card in your own words, or turn a PDF into AI-assisted drafts. Add code, images and tables. Review the draft, make it yours, and save only what you want to learn.

  • Create and edit rich learning cards
  • Generate PDF-based drafts with Gemini
  • Organise by category, topic and tags
Your next big idea.pdfYour source, turned into a starting point
LEARNING · NEW DRAFT

One idea. In your own words.

CodeImagesTables
Review it. Edit it. Keep it.
YOUR LEARNING, IN ONE PLACE

A second brain.
With a daily rhythm.

Bring your study notes, technical concepts and everyday discoveries. Give each one a clear home—and a reason to revisit it.

Cards that think like you

Text, code, images and tables. Keep an explanation complete without losing the one idea you want to remember.

From PDF to useful knowledge

Gemini helps turn document content into card drafts, with source context you can check before saving.

A conversation with your knowledge

Ask questions about saved cards and refine document drafts without losing your conversation history.

A place to return every day

Today, tomorrow and overdue views make it clear what is ready for a review. Your recall feedback guides what comes next.

Find the idea, not the folder

Search your cards, filter by topic or category, and favourite the things you want close at hand.

See your learning take shape

Test your recall and follow review activity, streaks and focus areas. Spot knowledge that needs another look.

MAKE IT WORK FOR YOU

Small sessions.
Honest progress.

You don't need to turn every page into a card. Start with the ideas that matter, and make a little room to practise recalling them.

A few things worth knowing
  1. 01

    Keep one clear idea per card.

    A question, a concept, a useful example. Short and specific is easier to practise.

  2. 02

    Recall before you reveal.

    Give yourself a moment to find the answer, rather than just recognising it on the page.

  3. 03

    Tell it how the review really went.

    Forgot, partly remembered, remembered or easy. Honest feedback makes the next review more useful.

  4. 04

    Come back to Today.

    Review what's ready, catch up when you miss a day, and let your activity show the habit growing.

LET'S CLEAR A FEW THINGS UP

Curious?
Good place to start.

A little clarity before your first card.

What exactly is Retainzy?

Retainzy is a learning and knowledge-retention workspace. You collect useful ideas as cards, organise them, and revisit them through scheduled reviews. AI tools help you work with your documents and saved knowledge; your own recall and feedback keep the learning active.

How does the AI support my learning?

Gemini powers AI-assisted PDF-to-card drafts, conversational draft refinement, the knowledge assistant, and recall-test feedback. You can check source context, ask about your saved cards and progress, or get feedback on points your recall answer missed. The knowledge assistant is focused on your Retainzy workspace—not a general-purpose chatbot.

Does AI automatically change my cards or review schedule?

The knowledge assistant is read-only. You review and approve document-generated drafts before saving them as cards. AI recall tests provide scores, improvement suggestions and possible misconceptions; they do not automatically replace your review rating or change your schedule. Always check AI-generated content against the source.

Do I have to create every card myself?

No. You can write your own cards, generate drafts from a PDF with Gemini, or save public cards you discover in the community. AI drafts are editable, so you can check the source, correct anything that needs work, and keep only useful cards.

What happens when I forget a card?

Mark it “Forgot” honestly. Retainzy uses review feedback to bring difficult cards back sooner and give well-remembered cards more space. Missed reviews remain available in your overdue queue. No tool can guarantee you will never forget, but regular, honest practice gives you a useful review routine.

Are my cards automatically shared?

No. New cards are private by default. You choose whether to make a card public for other learners to discover. You can organise and review your own collection without publishing it.

How should I use it effectively?

Start with a few short cards, each focused on one idea. Try recalling before reading the answer. Give honest feedback rather than marking everything Easy, and return to Today regularly. Check AI-generated drafts before saving, and use your focus areas to guide extra practice.

How do I get started?

Choose Log in or Start learning, then sign in with Google or register with email. Create your first card or upload a PDF, organise it into a topic, and open Today for your first review. The preview on this page is just a demo; it does not save cards or change your account.

YOUR NEXT IDEA IS WORTH KEEPING

Don't just learn it.
Make it part of you.

One card. One review. A little more that stays.

Start my collection Sign in with Google or create an account with email.