Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. June 22, 2026 Add as a ...

I generally love my Whoop band, but there's no question that the company's subscription-only model isn't for everyone. A few weeks ago, a hobbyist created an app that can connect to your old Whoop 4.0 ...