02 · AI Productivity · Mobile + Web
A personal operating system: tasks, time blocking, nutrition and workouts in one place, synced live between a web app and a React Native mobile app, with AI daily planning that turns a backlog into a schedule.
My own routine was split across four apps: a task manager, a separate habit tracker for workouts and nutrition, a calendar for time blocking, and notes for planning the next day. None of them shared state, so "what should I actually do today" meant opening all four and doing the synthesis myself, every morning.
LifeOS started as a tool to fix my own day. It's now a cross-platform product: one data model for tasks, habits and time, with a planner that does the morning synthesis automatically.
I built and ship both clients: the Next.js web app and the React Native/Expo mobile app, on a shared Supabase backend with Zustand for client state, plus subscriptions via RevenueCat (mobile) and iyzico (web, for the Turkish market).
The dashboard is the command center. It does not just list tasks; it places the day on a timeline, ranks what matters, and keeps health signals visible so planning and execution stay in the same loop.
Tasks
The task view ranks work by urgency, context and state, with filters for routines, completed tasks, tags and backlog movement.
AI planning
The planner reads open work, effort, energy and available time, then turns the backlog into an ordered schedule the user can actually follow.
Health loop
Workout state lives beside planning data, so the daily operating system can reason about effort, consistency and what actually happened.
The hard part of cross-platform isn't the UI, it's making sure a task checked off on the phone is checked off on the web a second later, without conflicting writes.
Tasks, habits, time blocks and nutrition entries live in Supabase under one schema, consumed by both the Next.js web app and the Expo mobile app.
Supabase realtime subscriptions push changes to both clients, with Zustand reconciling local state so the UI updates without a manual refresh.
Reads the day's open tasks and habits, scores them by priority and estimated duration, and lays them into a time-blocked schedule for the working day.
RevenueCat handles mobile subscription entitlements; iyzico handles web checkout for Turkish payment methods, both gating the same feature set.
A small re-implementation of LifeOS's planner: it sorts your tasks by priority, lays them into a 09:00–18:00 working day, and drops in a 15-minute break after roughly 90 minutes of work. Add a task and watch the schedule rebuild.