F2S vs Focus Timer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
F2S
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Block social media until you can prove you've learned something. F2S intercepts your social media habit and turns it into a study session. When you open Instagram, TikTok, or any app you choose, F2S steps in with a quiz. Answer correctly by explaining concepts in your own words, and earn your scroll time. Fail, and try again. It's the Feynman Technique meets screen time control. HOW IT WORKS โข Upload your study notes, PDFs, or any learning material โข AI generates quiz questions from YOUR content โข When you try to open a blocked app, F2S intervenes โข Answer 3 voice-based questions by explaining concepts out loud โข Pass the quiz โ earn 15 minutes of scroll time โข Track your streak, daily stats, and average score WHY VOICE? Typing an answer is easy to fake. Speaking forces you to actually understand. The Feynman Technique says: if you can't explain it simply, you don't understand it. F2S puts that to the test every time you reach for social media. SMART LEARNING โข AI validates your spoken explanations in real time โข Spaced repetition brings back questions you struggled with โข Questions adapt to your study materials, not generic trivia โข Focus mode lets you drill specific topics before an exam BUILT FOR YOUR WORKFLOW โข Works with iOS Shortcuts for seamless app blocking โข Sign in with Apple โ no new account needed โข Cloud-synced across all your devices โข Clean, minimal design that stays out of your way START FREE Try F2S free for 3 days. See how much you learn when your scroll time depends on it. Privacy Policy: https://feynman2scroll.web.app/privacy.html Terms of Use: https://feynman2scroll.web.app/terms.html
Focus Timer
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Stay focused. Block distractions. Make pottery. Clay Focused is a Pomodoro focus timer and app blocker that turns your screen time into beautiful handmade ceramics. Set a timer, pick your ceramic, and watch a mug, bowl, plate, or vase take shape on the wheel as you work, study, or create. Stay focused and your piece gets fired and added to your shelf. Every session makes something real. FOCUS WITH PURPOSE โ Set focus timers from 1 minute to 3 hours โ Choose your ceramic: mug, bowl, plate, or vase โ Watch your pottery form as you stay focused โ Block distracting apps โ Instagram, TikTok, YouTube โ with Screen Time โ Lock your screen and stay present BUILD YOUR COLLECTION โ Complete sessions to fire finished pieces โ Build a shelf of beautiful ceramics over time โ Unlock new ceramic types and glazes as you level up TRACK YOUR PROGRESS โ Maintain daily streaks to build consistency โ Set weekly focus goals and track total focus time โ View all-time achievements and pieces crafted WHO IT'S FOR Students, professionals, creatives, and people with ADHD who've tried screen time limits and just tapped "Ignore." If you need a distraction blocker that actually sticks, Clay Focused makes deep work feel like a reward. Clay Focused turns productivity into a calming, rewarding experience โ one ceramic at a time.
Screenshots
Verdict
The clearest difference is in-app purchases: Focus Timer at none against F2S's 2. Focus Timer also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. F2S sells 2 in-app purchases, starting at $5.99 per month. Focus Timer asks for nothing beyond the download.
F2S ships an update every 3 weeks, Focus Timer every 6 weeks. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.
| Parameter | F2S | Focus Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks โ better | Every 6 weeks |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 18.6 |
| Further details โ not scored | ||
| Size | 57 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Destan Gokalp | Jona Elias Fengler |
In-app purchases
F2S
- Monthly3 Days trial$5.991 Month
- Yearly3 Days trial$34.991 Year
Focus Timer
No in-app purchases









