iOS App
SelahNote (Lectra) is an AI-powered note-taking application for iOS that transforms live recordings, uploaded audio, and YouTube content into structured, reference-aware notes through a hybrid local-first and cloud-synced architecture. It now combines real-time transcription, agentic note generation, Convex-backed sync workflows, and Pinecone-powered reference retrieval to turn spoken content into searchable, enriched notes.
Purpose
Serves as an intelligent audio-to-notes platform that closes the gap between listening and understanding. Users can capture sermons or lectures in real time, upload existing audio, or ingest YouTube transcripts, then receive structured notes, scripture-aware summaries, and synchronized content that stays available across devices.
Key Features
Real-Time Transcription
High-quality audio capture with WebSocket-based streaming transcription to AssemblyAI during recording.
Multiple Audio Sources
Direct recording, audio file upload from Files app, and YouTube video transcript extraction.
AI Note Generation
Automated transcription with intelligent summarization via GPT-4o and scripture reference detection.
Hierarchical Organization
Folder-based organization with drag-and-drop, search and sort, and cascade deletion.
YouTube Integration
URL validation supporting various YouTube formats with Cloud Run transcript fetching.
Advanced Audio Processing
Audio format conversion, background session management, and interruption handling.
Dual Transcription
Live streaming for immediate feedback combined with batch transcription for maximum accuracy.
Custom Prompts
Sophisticated prompts for sermon and lecture content with structured markdown output.
Tech Stack