Heywa vs Knowledge Base

Heywa turns your curiosity into short, beautiful stories worth reading, saving and sharing. Got five minutes? Ask what to cook this weekend. Why Japandi took over every room on Instagram. What actually happened at Live Aid. How sleep affects your metabolism. Why your tennis serve keeps going wide. You get a visual story built for mobile. This is not search. It is not a chatbot. It is where curious people go when they want five minutes that feel worthwhile. Food and cooking. From what to cook tonight into fermentation, baking science, restaurant technique and why certain flavours belong together. History. The cultural moments that shaped the world you live in: Live Aid, the Cold War, 90s Wall Street, Y2K, Beatlemania. Then much deeper: Roman history, medieval politics, art history, niche rabbit holes you never thought you would care about until you were three stories in. Design. Why that aesthetic is everywhere and how to actually use it in your home, your wardrobe, your eye. From trend explainers into colour theory, architecture movements and fashion history. Science. What works, what does not, how your body actually functions. Calm, clear answers about sleep, skin, metabolism, longevity and performance. From popular health questions into neuroscience and exercise physiology. Sport. Get into padel. Fix your tennis serve. Run your first 5K and understand why your body adapts the way it does. From technique into biomechanics, training theory and sport psychology. Start anywhere. Follow what you are curious about. Come back tomorrow. Five minutes on Heywa will feel better than five minutes scrolling.

■ 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.