Distraction blockers split into two approaches. Hard blockers (Freedom, Cold Turkey, Opal) make a site or app genuinely inaccessible for the length of a session; some, like Cold Turkey's locked mode, can't be turned off early even if you try. Friction-based tools (One Sec, ScreenZen) don't block anything outright, they insert a short pause, a breathing prompt, or a delay before the app opens, on the theory that most compulsive opens don't survive a five-second interruption. Neither approach is universally better; hard blocking suits people who know willpower alone won't stop them, and friction suits people who mainly need to interrupt an unconscious habit loop.
| App | Approach | Platforms | Rough cost |
|---|---|---|---|
| Freedom | Hard block, cross-device sync (block on your phone by starting a session on your laptop) | Mac, Windows, iOS, Android, Chrome | Subscription, roughly $8–9/month, or an occasional discounted lifetime deal |
| Cold Turkey | Hard block, including a "locked mode" that can't be cancelled early | Windows and Mac only, no mobile app | Free tier for basic website blocking; Pro is a one-time purchase, not a subscription |
| Opal | Hard block using Apple's Screen Time API, with usage analytics | iPhone, Mac, Android | Subscription, roughly $99/year |
| One Sec | Friction: a breathing pause before a distracting app opens | iOS, Android | Low monthly cost or a lifetime option |
| ScreenZen | Friction: a short, increasing delay before opening chosen apps | iOS, Android | Free or very low cost |
| LeechBlock NG / SelfControl | Free browser-based (LeechBlock) or Mac-only (SelfControl) website blocking | Browser extension / Mac only | Free |
Pricing changes; treat the figures above as a rough starting point and check current pricing before buying.
No blocker is a permanent guarantee against every workaround; a determined person can usually find a way around a software restriction eventually. Treat these tools as raising the cost of distraction, not eliminating it entirely, and pair one with an actual session structure like a Pomodoro timer so the protected time gets used for something.
Removing access to distractions solves half the problem; the other half is what you do with the time you've protected. See our broader focus apps comparison for how blockers, timers and trackers fit together, or start with the Pomodoro Technique if you want a simple structure to fill the blocked time.
It depends on the device and how strict you need it to be. Freedom is the strongest cross-device option. Cold Turkey is the hardest to bypass on desktop but has no mobile app. Opal and One Sec are better suited to phone-based distraction than laptop use.
Yes. LeechBlock NG is a free browser extension for website blocking on any platform, and SelfControl is a free, open-source Mac app for timed website blocking. Cold Turkey also offers a free tier for basic website blocking.
Most can be circumvented eventually with enough determination, for example by disabling a VPN profile, restarting a device, or waiting out a session. Cold Turkey's locked mode and apps that use tamper-resistant enforcement are harder to defeat than simple friction-based tools, but no blocker is a permanent guarantee.
A hard blocker (Freedom, Cold Turkey, Opal) makes a site or app inaccessible outright during a session. A friction-based app (One Sec, ScreenZen) doesn't block anything, it adds a short pause or delay meant to interrupt an automatic habit before you follow through on it.
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