Comparison

Know It vs Unfog

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Know It

Features
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STOP PASSIVE STUDYING. START MASTERING. You think you know your subject? Prove it. KnowIt is the first app that combines the Feynman Technique with advanced AI to turn your voice into the ultimate learning tool. Most students re-read notes endlessly. That’s inefficient. The only way to truly learn is to teach. KnowIt listens to you, grades your logic, and prepares your reviews automatically. HOW IT WORKS: Quick Session (Tap & Talk) No folders, no friction. Just open the app, hit the big red button, and explain a concept (Law, Code, Med, History...) as if teaching a toddler. AI Grading & "Roast" Our AI doesn’t just transcribe; it audits your knowledge. The Score: Get a raw understanding score (0-100). The Feedback: The AI identifies logic gaps, hesitation, and missing key facts. It tells you exactly what you don't know yet. Instant Flashcards Stop wasting hours typing cards. KnowIt automatically generates flashcards specifically targeting the gaps found in your explanation. Spaced Repetition (SRS) Review your generated cards with a smart algorithm (Anki-style). Swipe Right if you know it, Swipe Left if you forgot. We handle the scheduling to ensure long-term retention. WHY KNOWIT? Zero Friction: Designed for flow. Capture ideas while walking or commuting. The AI auto-titles and categorizes your sessions. Active Recall: Forces you to structure your thoughts, not just memorize them. Gamified Growth: Keep your Streak alive and watch your "Explanation Score" improve over time. Whether you are a med student, a developer learning a new stack, or a lifelong learner, KnowIt is the relentless tutor in your pocket. Download now and test your first explanation. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Unfog

Features
Read full description

Stop rereading the same chapter and hoping it sticks. Unfog turns lectures, PDFs, and videos into real understanding — you explain in your own words, and the app shows exactly what still needs work. The Feynman method, built for your phone: add material, explain it simply (as if to a friend), get honest feedback on gaps, then revise with quizzes, flashcards, and mind maps. WHAT YOU GET ▸ Learn by explaining — voice or typed answers ▸ Honest gap feedback — strengths and weak spots, so revision stays focused ▸ Smart notes — clear summaries from your source material ▸ Quizzes and flashcards — generated from your topic, in your language ▸ Mind maps — see how ideas connect at a glance ▸ Many sources, one place — PDFs, scans, recordings, YouTube, links, pasted text ▸ Shared study spaces — revise with others, like a group session before exams ▸ Built for real sessions — mobile-first, dark mode, English and Polish HOW IT WORKS 1. Add material — a chapter, lecture, or lesson 2. Read smart notes to get oriented 3. Explain it simply, as if to a friend 4. Identify gaps and retry until it sticks 5. Revise with quizzes, flashcards, and mind maps Whether you are preparing for exams, learning a new skill, or revising after a meeting, the loop stays simple: capture → explain → fix gaps → revise. Unfog Pro unlocks full access to study features. Download Unfog and find out whether you truly understand what you just read. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Know It4 screens
Unfog4 screens

Verdict

The call

The clearest difference is update cadence: Unfog at every 2 days against Know It's every 2 months. Know It's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Know It sells 2 in-app purchases, starting at $3.99 per month and Unfog sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Know It ships an update every 2 months, Unfog every 2 days. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 3 level
Know It versus Unfog: the parameters behind the verdict, then further details
ParameterKnow ItUnfog
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size50 MB80 MB
Age rating12+4+
DeveloperNOLAN OLIVIER DANIEL ESSERTAIZEBITSEC SP. Z O.O.

In-app purchases

2 purchases

Know It

Subscriptions2
  • Abonnement étudiant$3.991 Month
  • Abonnement Illimité$12.991 Month
3 purchases

Unfog

Subscriptions3
  • Unfog weekly$2.997 Days
  • Unfog Monthly1 Month trial$17.991 Month
  • Unfog Annual$29.991 Year

Questions

Is Know It free?
Know It is free to download, with in-app purchases available.
Is Unfog free?
Unfog is free to download, with in-app purchases available.
Do Know It or Unfog have ads?
Neither Know It nor Unfog shows ads.
Which is updated more often, Know It or Unfog?
Know It ships an update every 2 months, and Unfog every 2 days. Most recently, Know It was updated on October 15, 2026 and Unfog on October 25, 2026.

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