KnoWhiz vs AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KnoWhiz
This AI-powered tool transforms your study materials into structured digital flashcards. It automatically generates and refines flashcard content based on your learning objectives or provided text, streamlining exam preparation.
- AI-powered flashcard generation
- Structured content adjustment
- Input learning objectives
- Process textual materials
- Digital flashcard creation
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What is KnoWhiz? KnoWhiz is an AI-powered learning tool to revolutionize digital flashcards for content and exam review. Users input learning objectives or textual materials, and KnoWhiz can auto-generate structured flashcards, and adjust flashcard content. Privacy: https://www.knowhiz.us/pdfs/KnoWhiz-Privacy.pdf Terms of service: https://www.knowhiz.us/pdfs/KnoWhiz-Terms.pdf
AI
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Karda turns any content into AI-powered flashcards in seconds — then schedules your reviews for maximum retention with minimum effort. Import anything. Study everything. Paste text, upload a PDF, share a URL, or point your camera at a textbook page. Karda's AI instantly generates high-quality Q&A and fill-in-the-blank (close) flashcards from your content. No manual card creation. No formatting. Just study. Built on real science. Karda uses FSRS — the Free Spaced Repetition Scheduler — a state-of-the-art algorithm that learns how well you know each card and schedules reviews at the exact moment before you'd forget. Study less. Remember more. WHAT YOU CAN IMPORT Paste notes, articles, or study material Upload PDFs — textbooks, lecture slides, papers Share any URL — web articles, Wikipedia, blog posts Scan printed text with your camera (OCR) FEATURES AI generates Q&A and cloze cards in under 10 seconds FSRS spaced repetition — smarter than Anki's SM-2 Weak area detection — identifies cards you keep missing and generates harder variants Stats dashboard — retention rate, streaks, activity heatmap Study reminders — daily notifications at your chosen time iOS widget — see your due cards on your home screen iCloud sync — study across all your Apple devices Import from text, PDF, URL, and camera DISCOVER PREMIUM DECKS Browse our growing library of expert-curated decks: IELTS Academic Vocabulary (band 7-9) CFA Level 1 Essentials Medical Terminology Spanish A2 Foundation Python Essentials Each deck is a one-time purchase — yours forever. KARDA PRO Upgrade for unlimited decks, adaptive difficulty, iCloud sync, and export. €4.99/month or €39.99/year (save 35%). Terms of Use: https://eckodesign.eu/karda/terms
Screenshots
Verdict
The clearest difference is iOS requirement: KnoWhiz at 13.0 against AI's 18.6. 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. KnoWhiz sells 2 in-app purchases, starting at $2.99 per month and AI sells 7 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | KnoWhiz | AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 31 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Curastone CORP. | ECKO Design |
In-app purchases
KnoWhiz
- KnoWhiz Plus Monthly$2.991 Month
- KnoWhiz Premium Monthly$9.991 Month
AI
- Karda Pro$3.991 Month
- Karda Pro$34.991 Year
- Python Essentials$2.99
- Spanish A2 Foundation$3.99
- IELTS Academic Vocabulary$3.99
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- Medical Terminology$4.99
- CFA Level 1 Essentials$5.99
