Updated March 2026

Klarrity vs Knowt: Chrome Extensions for AI Flashcards (2026)

Knowt is the most app-like option in the AI flashcard space — it has a Chrome extension, a web app, AND iOS/Android apps with its own built-in spaced repetition algorithm so you don't have to touch Anki. Klarrity is leaner and more Anki-focused, with two unique features Knowt doesn't have: clip-based YouTube and a quiz-first diagnostic mode.

Quick Verdict

Knowt is the better pick if you study primarily on phone, want a generous free tier, or want to live entirely inside one app with built-in SRS. Klarrity is the better pick if you study from focused YouTube clips, want the Klarrify diagnostic, are an Anki power user who values the AnkiConnect direct send, or want timestamp links on every video card. For most active-recall practitioners running large Anki decks, Klarrity is the integration-friendly choice; for casual mobile-first students, Knowt wins.

Feature Comparison

Feature	Klarrity	Knowt
Platforms	Chrome extension only	Chrome ext + web app + iOS + Android
YouTube approach	Clip-based (30s/60s/2m or custom range)	Whole video / transcript paste
Diagnostic-first option	Yes (Klarrify)	No
Built-in spaced repetition	No (export-first to Anki)	Yes (Knowt's own SRS)
Card types	Q&A, cloze deletion	Q&A, cloze, multiple choice
Direct send to Anki	AnkiConnect (instant)	.apkg download
Direct send to Notion	Yes (Notion API)	Limited
Timestamp-linked YouTube cards	Yes	No
Pricing	$7/month	Free tier + ~$10/month Pro
Free tier	Free trial only	Yes (generous)

Pros & Cons

Klarrity

Pros

+Clip-based YouTube — target the 30 seconds you just rewound, not the whole video
+Klarrify diagnostic — quiz first, build cards only on what you missed
+Direct send to both Anki (AnkiConnect) and Notion (official API)
+Source-bound generation — cards quote only from your captured source
+Timestamp links on every YouTube card back to the source moment

Cons

-Chrome only — no mobile app for studying on phone
-No built-in spaced repetition — you have to export to Anki / Quizlet / Notion
-Smaller free tier (trial only) compared to Knowt's permanent free tier
-English only currently; Knowt supports a few more languages

Knowt

Pros

+Native iOS and Android apps for studying on the go
+Built-in spaced repetition — no need to ever touch Anki
+Generous free tier with a meaningful number of monthly generations
+Multi-choice card support
+Strong PDF + article handling on top of YouTube

Cons

-No clip-based YouTube — processes the whole video
-No diagnostic-first option — generates cards from all source material
-Built-in SRS is less mature than Anki's FSRS algorithm — for serious long-term retention, Anki is still the gold standard
-Direct Anki export is .apkg-based, not real-time AnkiConnect

Frequently Asked Questions

Should I use Knowt's built-in SRS or export to Anki?

If you're new to spaced repetition and don't want to learn Anki, Knowt's built-in SRS is fine — it's better than no SRS. If you're a power user with thousands of existing Anki cards, Klarrity's AnkiConnect direct send keeps everything in your Anki review queue. The math on long-term retention favors Anki's FSRS for serious learners.

Knowt has a free tier — why pay $7 for Klarrity?

Knowt's free tier covers basic use. Klarrity's $7 buys two specific things Knowt doesn't have: clip-based YouTube (target 30 seconds, not the whole video) and the Klarrify diagnostic (quiz first, only build cards on gaps). If those two workflows match how you study, the $7 pays for itself in saved review time.

Does Klarrity have a mobile app?

No. Klarrity is Chrome-only by design — we capture from where you're already studying (browser tabs). For phone study, export your cards to Anki or Quizlet which both have mobile apps.

Make flashcards while you read

Klarrity turns any webpage into study-ready flashcards. Highlight text, get cards, export to Anki, Quizlet, Notion, or Obsidian.

Add to Chrome — Free to Try