Comparison

Focus Timer AI vs Knowledge Base

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

Head to head
About

Focus Timer AI

This app uses AI to enhance concentration through a Pomodoro timer. It analyzes your focus patterns to suggest optimal work times and provides visual statistics on your productivity. Improve your study or work efficiency with smart concentration cycles.

Highlights
  • Pomodoro timer with work/break cycles
  • AI concentration analysis
  • Personalized optimal timing suggestions
  • Concentration time statistics
  • Productivity score visualization
Features
Read full description

Overview (Description) The next generation pomodoro timer that maximizes your concentration Focus Timer AI is a personal concentration support app that utilizes Google Gemini AI. By combining the work rhythm of the Pomodoro Technique with AI analysis and advice functions, you can dramatically increase your productivity. ◆ Main functions ・Pomodoro timer: Work + break concentration cycle ・AI concentration analysis: Gemini AI learns your concentration patterns and suggests the optimal time of day ・Statistics and visualization: Check your concentration time and productivity in graphs ・Productivity score: Visualize continuity and improvement ◆ Recommended for Can't maintain concentration Want to improve efficiency in studying or work Want to know your concentration pattern Got tired of task management apps Like a simple and sophisticated UI Make your concentration time smarter with Focus Timer AI. Find the optimal work cycle with AI!

About

Knowledge Base

Features
Read full description

■ Knowledge that grows on its own Just save the articles you find interesting — AI quietly compiles them into your own encyclopedia in the background. Knowledge Base is the gentle second brain that helps you graduate from "read once, forget forever." ■ Save from anywhere, in one step - Save articles directly from Safari or any app's Share Sheet - The + button also lets you add URLs, text, PDFs, photos (OCR), and audio (transcription) - Non-English or non-Japanese content is automatically translated into your chosen language before it's organized Saving finishes instantly — the heavy lifting happens in the background, so you're never kept waiting. ■ AI organizes key points by topic AI automatically creates and updates "concept pages" — your own personal wiki — across multiple articles. Open the Knowledge tab and topic summaries are always shown up to date. - The most important points come first, no tapping required - Related concepts link to each other automatically, so your knowledge connects - Every page can always be traced back to its original article ■ Chat that answers with citations "What did that article actually say again?" Ask the AI Chat. - Answers are generated only from the articles you've saved - Tap a citation number to jump straight to the source article - When general knowledge is used to fill a gap, it's always labeled clearly ■ Fix AI's mistakes in one sentence - Tap "Correct" on any article's detail page and describe the fix in plain language (e.g. "Claude Code is being misread as something else") - Unwanted concepts or tags can be edited, merged, or hidden anytime You always stay in control. ■ Privacy by design - All AI processing runs entirely on-device via Apple Intelligence - No ads, no tracking, zero data sent to external servers - iCloud sync uses only your own private database ■ A calm, considered aesthetic A palette of sumi ink and washi paper, elegant Mincho headlines, and breathing negative space inspired by seigaiha waves. Every time you open it, it feels quiet and refined. ■ Languages Knowledge Base supports 4 interface languages: English, Japanese, Simplified Chinese, and Traditional Chinese. AI-generated summaries, concept pages, and chat replies follow the same language, chosen automatically from your device's language on first launch (you can change it anytime in Settings > Generation Language). ■ Requirements (important) - AI features (automatic concept-page generation, AI Chat, summaries, translation, auto-tagging) require an iPhone that supports Apple Intelligence - Please turn on Apple Intelligence in Settings before use - Even without Apple Intelligence, you can still save, search, browse, and organize tags for your articles Now, put your iPhone's AI to full use and turn everything you read into knowledge that's truly your own.

Screenshots

Focus Timer AI3 screens
Knowledge Base4 screens

Verdict

The call

The clearest difference is iOS requirement: Focus Timer AI at 12.0 against Knowledge Base's 26.4. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 7 level
Focus Timer AI versus Knowledge Base: the parameters behind the verdict, then further details
ParameterFocus Timer AIKnowledge Base
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequency—Weekly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS12.0 — better26.4
Further details — not scored
Size34 MB9 MB
Age rating4+4+
Developerjin mizoiCHANG CHIA-WEI

In-app purchases

None

Focus Timer AI

No in-app purchases

None

Knowledge Base

No in-app purchases

Questions

Is Focus Timer AI free?
Focus Timer AI is free to download, with no in-app purchases.
Is Knowledge Base free?
Knowledge Base is free to download, with no in-app purchases.
Do Focus Timer AI or Knowledge Base have ads?
Neither Focus Timer AI nor Knowledge Base shows ads.

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