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SelfControlOpal
Free

Free and open source, supported by donations.

 Freemium

Free to download, with a paid Opal Pro subscription for more features.

macOS macOS, Android, iOS
  • Block cannot be undone until the timer expires
  • Survives restarts and deleting the app
  • App blocking rules that apply on phone and desktop
  • Focus timer that locks apps until it runs out
  • macOS only
  • No way to end a block early if you set it wrongly
  • Some features require the paid Pro subscription
  • Gamified rewards and friend invites may not suit everyone
Downloadable app Downloadable app
Open source Closed source
License not stated License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.