Audionotes vs SecondBrain

Audionotes turns voice, audio, video, and text into structured notes using AI. Users can record or upload audio and video, add text or images, or submit a YouTube link. Transcription supports 99+ languages and speaker recognition; the service also creates summaries and custom outputs, supports chat with notes, and offers more than 100 output prompts. Integrations include Notion, Zapier, webhooks, and a WhatsApp bot, though Notion sync, Zapier triggers, and webhooks are Pro features. Webhooks can send note data to a custom endpoint; a public REST API is listed on the roadmap. The company says notes are encrypted in transit and at rest and are not used to train AI models. Its privacy policy names OpenAI, Google Gemini, Deepgram, and Assembly AI among providers that may process data for AI features. The free plan includes unlimited voice notes limited to one minute each, plus unlimited text notes, transcripts, and summaries. Pro costs $29.99 a month and allows recordings up to six hours. Recording uses the device microphone and does not capture audio from other sources such as speakers.

SecondBrain turns spoken thoughts, typed notes and content shared from other apps into organized notes, calendar events and reminders. Its AI transcribes, titles and files notes into a folder tree that builds as material is added. Mentioning a date can create an event and reminder, and the app provides a daily morning briefing. Full-text search and an interactive 3D graph help users find notes and explore connections. A shared-memory connector using MCP supports assistants including Claude, ChatGPT, Gemini, Cursor and Claude Code. The connector requires Pro, and connecting ChatGPT also requires Developer mode, which the maker says is available on Plus or above. The maker says notes and calendar events are stored in an EU-hosted Supabase PostgreSQL database with per-account Row-Level Security; voice and text go through Google Gemini's paid API tier, which it says does not train on content. The free plan has limited notes. Pro is $8.99 a month or $34.99 a year; the App Store also lists a second yearly price of 44.99 USD.