Feynman AI vs Shale
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Feynman AI
This app helps you learn complex topics faster by explaining them in your own words, like teaching a child. It provides AI-powered feedback and allows you to create notes from various sources. Ideal for students and self-learners.
- Learn complex topics faster
- AI-powered feedback
- Create notes from YouTube, audio, text, images
- Explain concepts like teaching a child
- Refine understanding through repetition
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Master Any Topic with Feynman AI Feynman AI uses the proven Feynman Technique to help you learn faster and retain more. Explain topics in your own words, receive smart feedback, and deepen your understanding—just like teaching a child. How It Works: Choose a concept you want to learn Explain it like you're teaching a 5-year-old Get AI-powered feedback and clarifying questions Refine and repeat until you truly understand Why Feynman AI? • Learn complex topics faster • Get real-time feedback • Create notes from YouTube, audio, text, or images • Perfect for students, self-learners, and professionals Study smarter—not harder. Download Feynman AI now and start mastering anything. Privacy Policy: https://getfeynman.app/privacy Terms of Service: https://getfeynman.app/terms
Shale
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You already spend hours on your phone. What if that time was earned by learning something that actually matters? Shale locks your most distracting apps and only unlocks them after you study. Every flashcard you complete earns you one minute of screen time. When your time runs out, the apps lock again. No willpower needed. Just a simple deal: learn first, scroll later. HOW IT WORKS 1. Pick the apps you want blocked (TikTok, Instagram, YouTube, and more) 2. Tell Shale what you want to learn. Our AI creates a personalized flashcard deck in seconds 3. Study your cards and earn screen time. 1 card = 1 minute 4. Your apps unlock. When time's up, learn a few more cards to keep going AI-POWERED FLASHCARDS Just describe what you want to learn in plain English: "Help me study for my biology exam" or "Teach me basic Japanese phrases." Shale's AI generates a complete deck tailored to your level. You can also create cards manually or expand any deck with more AI-generated content at any time. SCIENTIFICALLY PROVEN LEARNING Shale uses spaced repetition to show you the right cards at the right time. Cards you struggle with appear more often. Cards you already know fade into the background. You learn faster with less effort. REAL APP BLOCKING This isn't a gentle reminder you can dismiss. Shale uses Apple's Screen Time API to actually block your selected apps until you've earned enough screen time. It works in the background, even when the app is closed. SCHEDULED BLOCKING Set daily blocking hours so Shale only steps in when you want it to. Block apps from 8am to 10pm, or keep them locked around the clock. LEARN ANYTHING Exam prep, new languages, job interview questions, coding concepts, history facts, or any topic you can think of. If you can describe it, Shale can teach it. START YOUR FREE TRIAL Try Shale Pro free for 14 days. Cancel anytime. Terms of Use: https://joinshale.com/terms Privacy Policy: https://joinshale.com/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: Shale at 16.4 against Feynman AI's 18.6. On price, update cadence, 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
Both are free to download. Feynman AI sells 7 in-app purchases, starting at $2.99 per 7 days and Shale sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Feynman AI ships an update every 6 days, Shale every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Feynman AI | Shale |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (55 ratings) — better | — |
| Number of ratings | 55 — better | — |
| Update frequency | Every 6 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 31 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Baris Can Sertkaya | Elias Leinonen |
In-app purchases
Feynman AI
- Premium Weekly$2.997 Days
- Premium Weekly3 Days trial$4.997 Days
- Weekly Premium3 Days trial$6.997 Days
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- Weekly Premium$6.997 Days
- Premium Monthly$9.991 Month
- Yearly Premium3 Days trial$39.991 Year
- Premium Annual$39.991 Year
Shale
- Shale Pro Weekly3 Days trial$2.997 Days
- Shale Annual Plan3 Days trial$34.991 Year
- Shale Pro Lifetime$99.99









