Frequently Asked Questions

Everything you need to know about Dayline.

• insights What is a Dayline?
  One observation drawn from up to 120 days of your life.
  
  Dayline connects health, calendar, inbox and local weather, and surfaces something you'd never have spotted yourself.
• bar_chart Why one Dayline instead of endless charts?
  Nobody changes their life after staring at another graph.
  
  One memorable observation beats a hundred metrics.
• person What is Bio Age?
  Bio Age shows whether your body is ageing faster or slower over time.
• chat_bubble What can I ask Dayline?
  Anything about the last 120 days of your life.
  
  "Why was I exhausted after that long day?"
  "When do I sleep best?"
  "What's improving my Bio Age?"
  
  Ask naturally. Dayline remembers the context.
• lock Is my data private?
  Yes. It's yours.
  
  We only use it to generate your Daylines and answer your questions. Privacy Policy
• watch Do I need an Apple Watch?
  No. Apple Health is enough.
  
  A Watch just means richer data, and richer Daylines.
• medical_information Is Dayline medical advice?
  No. Patterns in your life, not a diagnosis.
  
  See a professional for medical advice.