Focus Timer vs Layers of Knowledge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Focus Timer
Enhance concentration and productivity with a customizable timer that divides work into focused intervals and short breaks. Track progress, set daily goals, and receive timely notifications to optimize your workflow. Enjoy a sleek interface with cross-platform synchronization.
- Customizable work & rest intervals
- Statistics and daily goal tracking
- Audio and visual notifications
- Cross-platform synchronization
- Dark theme for reduced eye strain
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Introducing Focus Keeper - Timer, the ultimate companion for anyone seeking to improve concentration, boost productivity, and master the art of time management. Immerse yourself in focused work sessions with our Focus Timer which divides your work into 25-minute intervals, each followed by a short 5-minute break. This rhythm not only optimizes concentration but also prevents burnout, allowing you to tackle tasks with renewed energy. KEY FEATURES: * CUSTOMIZABLE WORK & REST INTERVALS Tailor your work sessions to your unique preferences by adjusting the timer intervals. Whether you're a seasoned proponent of the focus technique or prefer a different structure, the Focus Keeper - Timer accommodates your workflow and ensures an adaptable and personalized focus keeper. * STATISTICS and DAILY GOAL TRACKING Track your progress, set achievable daily goals, and watch your productivity soar. The app provides insightful statistics on your focus sessions to help you identify patterns and measure productivity trends. Stay motivated by celebrating daily wins and addressing areas for improvement. * NOTIFICATIONS Receive audio and visual alerts that signal the end of each session. Enable push notifications to receive timely reminders to start or resume your focused sessions. Increase your productivity with our comprehensive alert system designed for a seamless and efficient work or study experience. * CROSS-PLATFORM SYNCHRONIZATION Improve your goal achievement by seamlessly viewing and managing your goals across multiple platforms, including iPhone, Mac, iPad, and more. * DARK THEME Immerse yourself in a sleek and easy on the eye interface that not only complements your distinctive style but also reduces eye strain in low-light conditions. Enhance your mobile experience with our dark theme, which provides both personalized aesthetics and enhanced visual comfort. Focus Timer can be used for academic excellence. For students and lifelong learners, the timer helps promote efficient learning by breaking study sessions into manageable chunks. Achieve academic excellence through study sessions and well-timed breaks, all within the intuitive Focus Timer interface. Embark on a journey of increased productivity, sharper focus, and better time management with the Focus Keeper - Timer. Download now and experience the transformative power of a purposeful and structured approach to work and study. Achieve more in less time with the ultimate companion for mastering the art of focus and productivity.
Layers of Knowledge
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Transform how you remember information with Layers of Knowledge – the intelligent spaced repetition app built on the science of the Ebbinghaus Forgetting Curve. LEARN SMARTER, NOT HARDER Stop forgetting what you learn. Our scientifically optimized reviewing schedule (1, 3, 7, 14, 30, 90, and 180 days) ensures information moves from short-term to long-term memory through perfectly timed reminders. KEY FEATURES - Layered Learning System Create knowledge items with optional hidden content for self-quizzing. Perfect for flashcard-style learning where you test yourself before seeing the answer. - Smart Notification Scheduling Receive timely reminders exactly when you need to review. Our intelligent system ensures you never miss a critical review session. - Flexible Learning Schedules Choose from multiple preset reviewing systems or create your own custom systems that match your learning goals. Define exactly when you want to be reminded – whether it's days, weeks, or months apart. Each schedule can have unlimited layers tailored to your specific needs. - Pause & Resume Learning Life gets busy. Pause all notifications with a single tap and resume whenever you're ready. Your progress is preserved, and all pending reviews are automatically rescheduled from when you resume. - Relearn Anytime Completed all reviews but need a refresher? The relearn feature lets you restart any item's review cycle from the beginning. Perfect for information that needs reinforcement or topics you want to revisit with fresh eyes. - Powerful Organization Organize your knowledge with color-coded tags. Filter, search, and manage thousands of items effortlessly with our advanced search feature. - Progress Tracking Track your journey from new information to permanent knowledge. See upcoming reminders, review your learning history, and celebrate when items move to your "Learned" collection. - Data Portability Download your entire knowledge base. Import on any device. Transfer between phones seamlessly. Your data belongs to you – always. - Multilingual Support Full support for English, French, and Arabic content including proper right-to-left text handling and diacritics-aware search. ENDLESS LEARNING POSSIBILITIES Vocabulary, inspiring quotes, poetry, historical facts, names and faces, exam material, important dates, travel phrases, trivia for conversations, and more – if you need to remember it, Layers of Knowledge helps you retain it forever. BUILT ON SCIENCE The Ebbinghaus Forgetting Curve shows we forget up to 70% of new information within 24 hours. Layers of Knowledge fights this by prompting reviews at scientifically proven intervals, dramatically improving long-term retention. YOUR LEARNING, YOUR WAY Whether you prefer the default science-backed schedule or want complete control with custom intervals, Layers of Knowledge adapts to your style. Pause when life demands it, relearn when memory fades, and build lasting knowledge layer by layer. Privacy-focused: All your data stays on your device. No account required. No data collection. Start building knowledge corpus today!
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Verdict
The clearest difference is update cadence: Layers of Knowledge at every 3 days against Focus Timer's every 5 weeks. Layers of Knowledge also leads on iOS requirement (12.0 vs 16.0). 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.
Focus Timer ships an update every 5 weeks, Layers of Knowledge every 3 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | Focus Timer | Layers of Knowledge |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (17 ratings) — better | — |
| Positive reviews | 96.2% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Vision Pro — better | iPhone, iPod |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | SimpleInnovation LLC | Ismail Bninou |
In-app purchases
Focus Timer
No in-app purchases
Layers of Knowledge
No in-app purchases
Questions
Is Focus Timer free?
Is Layers of Knowledge free?
Do Focus Timer or Layers of Knowledge have ads?
Which is updated more often, Focus Timer or Layers of Knowledge?
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