Lifestack

Most planners assume every hour of your day is interchangeable. Lifestack doesn't: it pulls sleep, recovery and focus signals from your wearable, maps them onto your calendar as Energy Zones, and drafts a day where the hard work sits in the peaks and the low stretches get something lighter. Meals and rest get planned too, mapped against what the day is actually asking of you.

There's a chat copilot for in-the-moment decisions about what to do next, and wearable health data is shown alongside calendar events rather than in a separate app. Users mention syncing tasks in from tools like Trello. It runs on iPhone, Android, Mac and Chrome, and the site states health and calendar data is never sold or shared.