Lifestack (Web + AI Scheduler)
First AI calendar to use health data for better productivity
Lifestack (Web + AI Scheduler) launched on March 5, 2025 with 576 votes, #33 of 7,215 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Lifestack is an AI-powered calendar that integrates with wearable health devices to optimize scheduling based on users' energy levels. It automatically suggests times for focused work during peak productivity periods and recommends breaks when energy dips, helping users accomplish more while avoiding burnout. The tool is designed for anyone looking to align their schedule with their physical state for better productivity outcomes.
written from the facts on this page · September 2026
From the sources
Lifestack syncs with health data from wearable devices to optimize scheduling based on energy levels. It helps you plan deep work when you’re most productive and take breaks when needed—helping you get more done without burning out.
Welcome to Lifestack, a smart planner app that optimizes your schedule by aligning tasks with your energy levels. Discover how we combine health insights with productivity to help you achieve more.
Lifestack reads your sleep, recovery, and focus, then drafts a schedule that puts the right work at the right time. Lifestack reads your sleep, recovery, and focus, then drafts a schedule that puts the right work at the right time. Lifestack reads your sleep, recovery, and focus, then drafts a schedule that puts the right work at the right time. We override our bodies constantly — and pay for it. Sometimes we waste our peak focus and push through later on fumes. Sometimes we eat a heavy meal before an important meeting. Sometimes we sacrifice sleep for work that could wait. Lifestack plans your day around your body, so you stop working against it. Align important work with your peak energy…from lifestack.ai
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