SaaS / Productivity
Notes apps remember what you wrote but not what you meant. Infini-Note is a daily notepad that remembers everything: it categorizes notes itself, pulls out your todos, reminds you, and answers questions across your entire history.
The Product
Notes apps remember what you wrote but not what you meant. Infini-Note is a daily notepad that remembers everything: it categorizes notes itself, pulls out your todos, reminds you, and answers questions across your entire history.
Under the Hood
Infini-Note is offline-first: notes live in the browser database and sync to the cloud when a connection exists. The AI layer auto-files each note into categories, extracts todos, and powers a chat that answers from everything you have ever written. Push reminders arrive through Firebase. One codebase ships as a web app, an Electron desktop app, and a Capacitor Android app, and an MCP server lets AI agents read your notes with permission.
Deep Dive
## What we built A note-taking product where the AI does the filing: write, and Infini-Note categorizes, extracts todos, schedules reminders, and answers questions over your history. Web, Electron desktop, and Android clients share one sync backend. ## Tech React 19 with Vite and an IndexedDB offline store, Node server with Drizzle ORM on MySQL, Anthropic API for the AI layer, Stripe billing, Firebase push, Electron and Capacitor shells, EC2 behind nginx. ## Results 16 days from first to last commit for a three-platform launch with billing, sync, push, and an agent-facing MCP server. ## What is next iOS is scripted and waiting; end-of-day digests are already in the route table.
The Outcome
Shipped to web
desktop
and Android from one codebase in 16 days
AI auto-categorization plus todo extraction plus Q&A across full note history
offline-first sync
priced at $3 a month or $20 a year with a 21-day grace period
MCP server for agent access
9 database tables and 10 server route modules
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