Lifestack (Web + AI Scheduler) - First AI calendar to use health data for better productivity

Hi, Product Hunt 👋

I'm Nao, cofounder and CEO of Lifestack! Today, I’m excited to announce the launch of our web app and AI scheduler on Product Hunt 😺

Lifestack integrates with your calendar, todo lists, and wearable devices to help you schedule tasks and activities at the right time, factoring in your calendar events, circadian rhythms, stress levels, and more 🗓️

You all requested a web version so we quickly built one! The web app isn’t just a calendar view; it also comes with a Kanban board, making it even easier to time-block your to-dos 🚀

But that’s not all! Over the past few months, we’ve been working on our AI scheduler. With just one click, you can timeblock your calendar based on your energy levels. It’s still an early feature, but I’d love for you to try it out and share your feedback!

At Lifestack, we believe that health and productivity go hand in hand. By helping people schedule their days based on their energy levels, we want to make productivity feel more natural, sustainable, and effective. This is just the beginning, and we’re excited to keep pushing the boundaries of what’s possible at the intersection of health and productivity! 🔥

Please check out our launch posts on X / LinkedIn as well, and spread the word about Lifestack!

X: https://x.com/LifestackAI

LinkedIn: https://www.linkedin.com/company/demind-inc

Thank you!
Nao

Hi, Product Hunt!

I’m Hayato, cofounder and CTO of Lifestack. Super excited to share what we’ve built with you all today! 🚀

Lifestack seamlessly integrates with calendars, to-do lists, and wearables to create a truly adaptive scheduling experience—enhanced by our AI Scheduler. We’ve tackled some exciting technical challenges along the way:

• Fast web app development: Since our mobile app was built with React Native, developing the web version in React was smooth—we built the first version in just two weeks and have been improving it with our users through rapid iterations.

• Custom UI innovations: We developed proprietary UIs like drag-and-drop scheduling and an energy-aware calendar to make time-blocking more intuitive.

• Expanding integrations: We’ve added support for TickTick, Todoist, and more to ensure Lifestack fits seamlessly into existing workflows. Also, thanks to Terra API, integrating wearables like smartwatches was much easier than expected.

• Building a scalable all-in-one platform: Lifestack continuously improves how it integrates your health data, interprets it, and makes it more actionable. You can export your health data into Lifestack to gain insights, and with our AI Scheduler, it becomes even more effective in guiding your day.

This is just the beginning, and we’re eager to hear your thoughts! Let us know what think and how we can improve. 🔥

Check out the app here:

• Web app: https://app.lifestack.ai

• App Store: https://apps.apple.com/us/app/lifestack-calendar-and-health/id6473464429

• Play Store: https://play.google.com/store/apps/details?id=com.demind.lifestack_calendar

Thanks!!

Hayato

hi all, i'm tom, cofounder of lifestack! excited to share with you our newest ai scheduler feature!

with one-click, lifestack will recommend a timeboxed schedule based on your energy level and preferences which includes deep work sessions, light work sessions, breaks, lunch/dinner, and workouts! we'd love to hear your feedback on this feature!

the next version will schedule your todos as well so stay tuned!

thanks ph!

tom

Congrats! Curious, how many of your users connect to Oura? Do they use other devices? Can they even use it without wearables?

I actually really like this. I often find myself trying to time "how I feel" to "what I should do" and that includes running in the middle of the day, or doing crazy creative work at night. The idea of tying your calendar and activities based on your actual health data makes sense to optimize performance. Awesome idea and congrats on the launch @nao_yukawa + team!

This is a good idea. And probably something that companies should take an example. When people do not have to work 9 – 5 but in their most productive time (when they are energised), it could bring better results to companies too.

Forget Anthropic, forget OpenAi, forget DeepSeek. Lifestack is the single most important AI integration.

Love the idea of organizing my calendar according to my energy levels!

I really love how easy it is to add important tasks to the schedule using drag-and-drop. I hope it integrates with Notion soon. I’m really excited to see the development of the AI scheduler! Congratulations on the launch!

Congratulations to the team & @nao_yukawa on the launch!

Hope everything goes well with the launch!