| Fella | Blocked by default during sessions | Yes — separate app, left unselected | No — app only | One 5-min unlock per session, auto-relock | $9.99/mo, $34.99/yr, no free trial |
| Opal | Sessions with adjustable difficulty | Yes — per-app rules | Desktop browser extensions | Deep Focus (uncancellable, Pro) | Free 1 Rule; Pro $99.99/yr, $19.99/mo, $399 lifetime |
| Jomo | Sessions, limits, or always-on rules | Yes — per-app selection; messaging unaffected | Yes, plus Mac | Strict Mode (Pro) | Free 1 session; Plus $29.99/yr, $99.99 lifetime |
| ScreenZen | Delays, limits, scheduled blocks | Yes — per-app selection | Yes | Strict blocks + Settings lock | Free, donation-supported |
| one sec | Pause before Facebook opens | Yes — per-app setup; intentional app-switching | Safari extension (Pro) | Full block sessions (Pro) | Free 1 app; Pro $19.99/yr, $2.99/mo, $99.99 lifetime |
| Freedom | Block sessions across devices | Yes — custom blocklists | Yes | Locked Mode (Premium) | Free limited; Premium $39.99/yr, $8.99/mo; Forever one-time plan |
| AppBlock | Quick Block or scheduled profiles | Yes — per-app blocklists; allowlist option | Yes, incl. Safari keywords | Strict Mode: timer, PIN, approval (opt-in) | Free capped; Premium $29.99/yr, $4.99/mo, lifetime available |
| Refocus | Timed blocks, schedules, limits | Yes — per-app selection | Yes, plus Mac | Passcode, NFC, wait, copy-text, Pomodoro caps | Free download; Pro in-app purchases (check purchase sheet) |