Synapse Reads vs InkStack

Stop letting your reading disappear. You finish a book, feel changed by it, and three weeks later can't remember a single idea. Synapse fixes that. READING SESSIONS Open any book and start a session. Synapse tracks your reading time while you capture highlights — scan a page, type a quote, or read it aloud and let AI transcribe it instantly. When you finish, see exactly how long you read, what you captured, and whether Synapse found a new connection during that session. FLASH INSIGHTS When two highlights from different books share an unexpected idea, Synapse surfaces it automatically. Powered by Claude, the connections go beyond the obvious — finding threads across books you read years apart that you never would have noticed yourself. THREE WAYS TO CAPTURE Scan physical pages with your camera. Type or paste quotes directly. Or hold the mic and read a passage aloud — Whisper transcribes it and shows you the text to confirm. However you read, capturing a highlight takes seconds. CHAT WITH YOUR LIBRARY Ask your entire collection a question. "What do my books say about focus?" "Find a quote I saved about habits." Every answer comes from your own highlights — not the internet. IMPORT YOUR KINDLE HIGHLIGHTS Upload My Clippings.txt and your entire Kindle library arrives instantly — with covers, metadata, and connection checks running automatically. WHO IS THIS FOR? Non-fiction readers who want their highlights to actually do something. People who finish books and want to remember them. Anyone building a reading habit who wants to see it grow. Download Synapse and make everything you read count.

Inkstack is the on-device PDF maker for iPhone: write it, say it, or snap it — then save a PDF without uploading your files. CREATE A PDF • Text to PDF — type notes or a letter and export a clean multi-page document • Voice to PDF — dictate, edit the transcript, then save • Image to PDF — photos or camera; each picture becomes a page EDIT WHAT YOU ALREADY HAVE • Merge PDFs into one file • Split a PDF into single pages • Rotate, reorder, or delete the pages you tap • Drag to highlight exact words — not a random box on page one • Sign with your finger • Fill forms and add a watermark • Search text in the document PROTECT & SHARE • Password-protect before you send • Compress for email and WhatsApp • OCR for scans so text is selectable • Print, share, or export pages as images • Saved files live in the Files tab on this iPhone WHY INKSTACK No account. No cloud for your documents. Create from notes, voice, or photos first — then merge, split, sign, and lock. The app is free and supported by labeled ads. Ads never cover buttons or the keyboard. Tools are not locked behind ads. Privacy: https://sites.google.com/view/inkstackprivacypolicy Support: https://sites.google.com/view/instack-sup