Pinster

Pinster, listed on the App Store as Pinster AI, is a knowledge manager app for saving web links, documents, images and notes in one place. It analyzes saved content, makes a clean Markdown version and uses AI to suggest tags and folders and to write summaries. It is built for professionals, students, researchers and lifelong learners who want to keep their reading organized and review key ideas from saved material.

When content is saved, Pinster analyzes it automatically, creates a Markdown copy and recommends folders and tags based on the user's own categories. AI-generated summaries cover web pages, PDFs and articles. A Digest feature sends scheduled summaries of bookmarks by day, week or month, in text and audio, and Chat with Library answers questions using the saved content as its source.

Bookmarks can be saved from a Chrome or Firefox browser extension, through the iOS Share Extension, or imported from Safari and Chrome. PDF files can be uploaded as bookmarks, and bookmark details show captions for Instagram and TikTok content and tappable links in Twitter/X cards. Reader Mode gives a clean reading view, daily notifications send reminders and summaries, and the library syncs across devices.

Pinster is free to download, with in-app purchases for Pro access at $6.99 a month or $69.99 a year. It runs on iPhone with iOS 18.1 or later, on iPad, on Macs with an Apple M1 chip or later and macOS 15.1, and on Apple Vision. The interface is in English. Purchases, contact information and identifiers may be collected and linked to the user's identity.

Use cases

• Collecting and organizing research sources and curated content
• Getting daily, weekly or monthly audio digests of saved bookmarks
• Asking questions across saved articles and documents
• Moving existing browser bookmarks into one library
• Saving PDF files as bookmarks from the Share Extension
• Keeping Instagram and TikTok posts with their captions