Synapse Notes vs AI Brief

Synaps Notes is a private, on-device note app built for local AI. Write and organize notes directly on your iPhone. Chat with your own notes and documents using local AI models. Import PDFs, images, and text files with OCR support. Keep your data on-device by default, with optional Google Drive backup. No account is required to use the core features

Optimized for iPhone Duo. Built with the latest SDK, the app fills the entire inner display and automatically adjusts its layout whether the device is folded or open. Turn screenshots, PDFs, files and notes into one well-organized AI prompt, with the goal, facts and sources sorted. Every fact keeps its source and confidence, so you can check it before AI sees it. Copy once and paste into any AI chat. Text recognition and personal-data detection run on your device, and you decide what to keep, replace or remove. BRING THE COMPLETE CONTEXT • Add screenshots, PDFs, files, copied text, notes, or links. You choose what stays in the final brief. • OCR, PDF reading, duplicate checks, fact extraction, and privacy detection use Apple frameworks locally. • Combine several sources into one clean brief. VERIFY THE FACTS BEFORE AI SEES THEM • Every fact keeps its source and confidence. Correct anything that needs context. • Find facts, conflicts, and open questions PROTECT PRIVACY • Detected details are never removed automatically. Keep, replace, or remove each item before export. • AI Brief never promises anonymity. • Replacements and removals are applied at export. CLEAN CONTEXT FOR ANY AI ASSISTANT • Structured headings and source-ready formatting • Build context once. Reuse it anytime. • Copy the finished brief in one tap and paste it into any AI chat • Version history — every earlier draft stays within reach • Templates for technical problems, support requests, document analysis, study material, meeting follow-ups and more YOUR CONTEXT STAYS PRIVATE • AI Brief does not include third-party ads, tracking, analytics, or content telemetry. • Review the brief before sending it to any AI service. AI BRIEF PRO (IN-APP PURCHASE) Without a purchase, each brief can use up to 5 sources, and you can copy, share and save one brief. A one-time in-app purchase lets you copy, share and save every brief, raises the limit to 50 sources per brief, and adds more templates, detailed long-context briefs, advanced privacy replacements and complete version history. Optimized for iPhone Duo.