Chain (Version iOS 1.4)

Chain (Version iOS 1.4) -Synopsis: Chain is designed to help you build new habits. In it, you can form, share and explore habits and follow people with similar goals.

Price and Platform: Free. Apple only.

RDN Score: 5/5


  • Easy-to-use app with a simple design.
  • Use the calendar function to set, enter and track habits.
  • Easily create a habit in just a couple of clicks. Tick off each habit for every day you complete it.
  • There is no limit on the type of habit you can set. Enter anything from learning Spanish to daily meditation or exercise.
  • Share your habits and progress in the Chain social feed or keep them private.
  • Explore others in the community with similar habits and levels of productivity.
  • Follow friends and family and form a community of supporters.
  • Use the option to set reminders to track each habit or not.
  • Chain offers basic metrics to monitor habit streaks, your best days and total days performing the habit.
  • Follow users to have their posts show up in your feed or browse the “Explore” tab for inspiration from the Chain community. This tab offers a space to spark ideas, get motivation and connect with people pursuing the same habits.


  • Requires you to sign up with email or Apple sign-in, but you can hide your email address and choose a pseudonym for your username.
  • Chain is simple and may lead users to seek a more feature-rich app.

Bottom Line: Chain is ideal for anyone wanting to create and track habits with a community of like-minded people online.

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Marisa Moore
Marisa Moore, MBA, RDN, LD, is based in Atlanta and specializes in culinary nutrition, communications and consulting. She blogs at Follow her on Instagram and Twitter.