Deckify vs Knowia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Deckify
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Turn your notes into flashcards in seconds. Deckify uses AI to instantly convert your handwritten notes, textbook pages, slides, and typed text into study-ready flashcards — then helps you remember them with the most effective spaced repetition algorithm available. HOW IT WORKS Point your camera at any notes or text. AI generates a complete flashcard deck in under 15 seconds. Study on your own schedule — the app knows exactly when to show each card. SMART STUDY SCHEDULING Powered by FSRS, the same next-generation spaced repetition algorithm used by top students worldwide. Rate each card (Again / Hard / Good / Easy) and Deckify calculates the optimal time to review it — so you study less but remember more. WHAT YOU CAN SNAP Handwritten lecture notes, textbook and workbook pages, whiteboards and slides, printed formulas and diagrams, typed or pasted text. FEATURES Camera-first: snap a photo in one tap. Supports complex subjects: math equations and code render properly on cards. Chat-style generation: add images, text, and refinement instructions in one session. Extend any deck with AI-suggested cards at any time. Manual card creation and editing. Study sessions end with a performance summary. Unlimited decks, unlimited studying — always free. FREE TIER 15 AI generations in your first month, 5 per month after that. Studying, editing, and manual card creation are free forever. PRIVACY Images are processed and immediately deleted from our servers. They are never stored or used for training.
Knowia
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Knowia is a modern learning app designed to help you retain information long-term using flashcards and spaced repetition (SRS). Discover ready-made study decks or create your own custom cards. With our intuitive swipe-based system, your learning process becomes fast, simple, and highly effective. What Can You Do? • Engage in active learning with flashcards • Build long-term memory via spaced repetition (SRS) • Create and customize your own study decks • Organize your decks by category • Keep your cards private or share them with the community • Discover and study decks created by other users • Bulk import cards quickly using CSV • Break down massive decks into manageable chapters • Enjoy a fast, swipe-based learning experience Who Is It For? • Language learners • Students preparing for exams • Anyone wanting to explore and learn new topics • People looking to review and memorize information regularly Start learning smarter and more efficiently with Knowia. Support: https://www.knowia.online Privacy Policy: https://www.knowia.online/policy Terms of Use: https://www.knowia.online/terms
Screenshots
Verdict
The clearest difference is update cadence: Deckify at every 3 days against Knowia's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Deckify ships an update every 3 days, Knowia every 2 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Deckify | Knowia |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 37 MB | 49 MB |
| Age rating | 12+ | 4+ |
| Developer | SealSyncAI Inc. | Arda Berkay BAGIM |
In-app purchases
Deckify
No in-app purchases
Knowia
No in-app purchases
