Capture
Gets content in and resurfaces it gently. Excellent libraries. But rereading is recognition, not recall — you are shown the answer rather than asked for it.
Readwise · Recall
Download
Save it. Upload it. Highlight it. Card it. Every memory tool on the market needs you to do something first — and that something is exactly where people give up. CogniPage is the only one that reads along.
Retention needs all three — get it in, understand it, keep it. What separates these products is which part they leave to you.
Gets content in and resurfaces it gently. Excellent libraries. But rereading is recognition, not recall — you are shown the answer rather than asked for it.
Readwise · Recall
World-class scheduling built on decades of memory research. It assumes the cards already exist — which means you wrote every one of them.
Anki
Organises, explains, connects. Brilliant for making sense of a document today. Little or nothing that brings it back next month.
NotebookLM · Obsidian · RemNote
Captures without being asked, builds the questions from your own reading, and schedules them with FSRS-6 fitted to your review history.
The capture step is removed, not automated
Each of these is genuinely good at something. Here is what they do well, and the specific thing CogniPage does that they don’t.
What NotebookLM is brilliant at: interrogating a set of documents. It answers only from the sources you give it and links every claim back to the exact passage — genuinely the best tool there is for getting on top of a pile of material quickly.
NotebookLM helps you understand it today. CogniPage makes sure you still know it in six weeks.
What Anki is brilliant at: everything that happens after a card exists. It is free, open source, has decades of shared decks behind it, and it ships FSRS — the best-validated scheduling algorithm in the field. Nothing schedules better. We don’t claim otherwise; we run the same generation of it.
The same memory science. Without the hours of card-making that stop most people.
What RemNote is brilliant at: collapsing notes and flashcards into one place. Its outline-with-cards model is elegant, PDF annotation sits right beside your notes, and the AI tutor is a real study companion.
RemNote needs your reading to move house. CogniPage comes to you.
What Recall is brilliant at: turning the web into a connected library. One click saves an article, video or podcast, it auto-links everything into a knowledge graph, and you can chat across the whole collection. The graph is genuinely lovely.
Recall remembers what you saved. CogniPage remembers what you read.
What Readwise is brilliant at: the best highlight pipeline anywhere. Kindle sync is unmatched, Reader is a superb read-later app, and your highlights flow onward into Obsidian, Notion or wherever else you keep notes. If you want your highlights everywhere, nothing beats it.
Rereading a highlight feels like remembering. Being asked, and getting it wrong, is how you actually learn.
What Obsidian is brilliant at: ownership. Plain Markdown files on your own disk, free forever, no lock-in, and a plugin for anything you can imagine — including spaced repetition. If total control of your data is your first priority, Obsidian is superb and we would say so.
Obsidian gives you the perfect empty vault. CogniPage fills one while you read.
| CogniPage | Anki | RemNote | Recall | Readwise | NotebookLM | Obsidian | |
|---|---|---|---|---|---|---|---|
| Ambient capture | ● | ○ | ○ | ○ | ○ | ○ | ○ |
| Works inside your other apps | ● | ○ | ○ | ◐ browser | ◐ browser | ○ | ◐ |
| Lectures & video → study material | ● | ○ | ○ | ◐ | ◐ | ● | ○ |
| Printed books | ● | ○ | ○ | ○ | ◐ kindle | ○ | ○ |
| Spaced repetition scheduler | ● FSRS-6 | ● FSRS-6 | ● | ◐ | ◐ | ○ | ◐ plugin |
| Schedule fitted to you personally | ● | ● | ○ | ○ | ○ | ○ | ○ |
| AI builds the cards & quizzes | ● | ◐ add-ons | ● | ● | ◐ | ● | ◐ plugins |
| Auto-graded with partial credit | ● | ○ | ○ | ○ | ○ | ◐ | ○ |
| Knowledge map / concept graph | ● | ○ | ◐ | ● | ○ | ◐ | ● |
| Your personal forgetting curve | ● | ◐ stats | ◐ | ○ | ○ | ○ | ○ |
| Offline-first | ● | ● | ◐ | ◐ | ◐ | ○ | ● |
| Approve capture per site, document & video | ● | ○ | ○ | ○ | ○ | ○ | ○ |
● full◐ partial○ noneChecked August 2026
Capture, scheduling and review run on your device and cost nothing. AI generation runs on credits — one credit is 1,000 AI tokens.
$0
20 credits every month, refreshed. Unlimited capture, scheduling and review — those never spend credits.
$4.99 /mo
1,500 credits a month. Flashcards, assessments, grading, notes and recommendations.
$44.99 /yr
18,000 credits a year.
Save 25%Grant permission, keep reading exactly as you do now, and let CogniPage handle the remembering.
Competitor features and prices were checked against each vendor’s own published material in August 2026 and are summarised in good faith; products change, so follow the source links before deciding. Every CogniPage claim on this page describes shipping behaviour on macOS 12+ and Windows 10/11. All product names and trademarks belong to their respective owners.