
Block websites on Mac, apps and sites on iPhone and iPad
Cloister blocks websites on your Mac until the timer ends, with no Stop button: quitting it, the clock and a restart don't end a session. On iPhone, iPhone Duo and iPad it blocks apps and websites, with Screen Time. No account. Mac: one-time purchase.
Cloister is a productivity app that blocks websites on Mac and apps on iPhone and iPad, utilizing a timer with no option to stop once initiated. It requires a one-time purchase for Mac and operates without an account.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.