Second Brain vs PlainMind

Second Brain is your offline-first personal knowledge management app. Capture every idea, note, and insight — and never lose a thought again. No ads. No tracking. No account required. Your data stays on your device. FEATURES: • Rich Notes — Write with Markdown support, add images, link notes together • Collections — Organize notes into collections with icons and colors • Tags — Tag anything for instant filtering • Daily Notes — One note per day, automatically created • Goals — Track personal goals with milestones and progress • Book Notes — Capture key takeaways from books you read • Quotes — Save your favorite quotes • Knowledge Graph — See how your ideas connect visually • Bi-directional Links — Link notes and see backlinks automatically • Full-Text Search — Find anything instantly • Favorites & Archive — Star important notes, archive the rest • Quick Capture — Capture thoughts from the home screen widget • Face ID / Touch ID — Lock your app for privacy • iCloud Backup — Optional, off by default • Export — PDF, CSV, Markdown • 15 Languages — English, Turkish, Spanish, German, French, Italian, Portuguese, Dutch, Polish, Arabic, Japanese, Korean, Chinese, Russian PRIVACY FIRST: Second Brain collects zero data. No analytics, no tracking SDKs, no servers. Everything lives on your device. PREMIUM (one-time purchase): Unlock unlimited notes, collections, Knowledge Graph, exports, Face ID, and home screen widgets with a single lifetime purchase.

PlainMind is a calm place for the links, images, places, and ideas you want to remember, and it sorts itself. Save from any app in one tap. PlainMind organizes what you save by what it is, and when the same phrase keeps turning up in your notes, it offers to gather those saves into a collection. Or make a collection yourself and pick exactly what goes in. No tagging, no folders, no decisions in the moment. It's anti-feed. No infinite scroll, no algorithm pushing you toward what's popular. Your library is yours. Quiet, considered, the opposite of a social app. COLLECTIONS, FOUND OR MADE • PlainMind notices the phrases you repeat and offers to group them • Make your own collection and add any save to it by hand • Take a save out of any collection, and it stays out • Items join and leave on their own as your notes change • Pin any search and it becomes a collection that stays current WHAT YOU CAN SAVE Links, images, PDFs, places, plain text, music, podcasts, and video, straight from the share sheet, on iPhone, iPad and Mac. READ, MARK, KEEP • Reading mode: just the title and the words, with a table of contents • Highlight a passage and add a note; everything you've marked is together in Highlights • Listen to a saved article, read aloud on your device (Pro) • A copy that outlives the link: articles and their images, kept for when the page is gone (Pro) FIND IT LATER • On-device search across titles, notes, and text read from your images and PDFs • Filter by type, source, or when you saved it • Siri and Spotlight know your saves BUILT TO BE QUIET, AND FOR EVERYONE • Rich previews: album art, map snapshots, link previews • A widget that resurfaces something worth revisiting • On iPad and Mac, a sidebar with everything iPhone has • Light and dark, contrast that meets WCAG AA, and Dynamic Type at every size • VoiceOver throughout YOURS, AND PRIVATE PlainMind is local-first. What you save stays on your device unless you turn on iCloud backup. There are no accounts, no tracking, and no ads. FREE AND PRO Everything in PlainMind is free, with no limit on how much you save: collections, highlights and search included. PlainMind Pro adds automatic iCloud backup, so your library is never only on one device. It follows you to your iPad, your Mac and your next iPhone. Pro also reads saved articles aloud, keeps offline copies of articles, and adds tools for shaping your collections and sources. Pro is $2.99 per month or $24.99 per year, with a 7-day free trial on the annual plan. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://plainmind.app/privacy Terms of Use: https://plainmind.app/terms