title: How many days does a free Heroku app stay up?
body: <p>According to heroku</p>
  <blockquote>
  <p>Starting today, Heroku accounts have an account-based pool of free dyno hours for use on free apps. This replaces the 18 hours a day limit on free apps, allowing a free app to run 24/7 if needed. New accounts receive 550 free dyno hours and you can verify your identity with a credit card for an additional 450 hours</p>
  </blockquote>
  <p>→ How are dyno hours calculated</p>
  <p>If my app is always up, how many days will it stay up for (If I have 550 dyno hours) or does it depend on traffic and usage?</p>