Cold Turkey calls itself "the toughest website and app blocker on the internet." Frozen Turkey mode — once activated for a set duration — is designed to be genuinely undisableable, even across reboots. That reputation is earned.

But "does Cold Turkey block everything?" depends on what you mean by everything. The honest answer is more nuanced than the marketing suggests — and it matters if you are choosing between Cold Turkey and an AI-connected alternative.

What Cold Turkey blocks effectively

Cold Turkey operates at the desktop application level on Windows and Mac. It can block:

• Specific websites and domains
• Entire categories (social media, games, news)
• Desktop applications (Steam, Slack, email clients)

Its strict modes are the real differentiator. Frozen Turkey locks a block for a set duration with no toolbar escape, no settings menu override, and no "just five more minutes" button. That is a meaningfully higher bar than browser-extension blockers you can disable in one click.

For users whose distraction pattern is predictable — same sites, same hours, same machine — Cold Turkey is among the strongest desktop enforcement options available. Our full comparison is in LockIn vs Cold Turkey.

Where "everything" has limits

Cold Turkey is strict on the device you installed it on. It is not omniscient about context, devices, or workflow.

Per-device, per-install scope

Blocking is scoped to the machine where Cold Turkey runs. It does not automatically extend to:

• Your phone or tablet
• A second laptop
• A different OS install or user account

You configure each device separately. If your distraction pattern spans phone and desktop, Cold Turkey alone leaves gaps. Freedom handles cross-device sync better — see LockIn vs Freedom for how that compares to AI-connected desktop enforcement.

Schedule- and blocklist-driven, not context-aware

Cold Turkey blocks what you told it to block, when you told it to block it. It does not know your current task.

Concrete failure mode: You blocked YouTube for the morning writing block. At noon you are doing legitimate video research for a project. Cold Turkey either blocks the tutorial you need or requires you to edit the blocklist mid-session — which defeats the purpose of Frozen mode.

Static lists work when your tasks are uniform. They frustrate when your work is variable.

No AI assistant integration

If you work inside Claude, ChatGPT, or Perplexity throughout the day, Cold Turkey has no connection to that workflow:

• No session triggering from natural language
• No accountable unblock requests through your assistant
• No task-aware filtering based on what you stated you are working on

You manage everything through Cold Turkey's own settings panel — a separate app from where your actual work happens.

Cold Turkey vs system-level AI enforcement

Both are stronger than browser extensions. The practical difference is workflow integration: Cold Turkey is a strict standalone app; LockIn is a strict blocker your AI assistant can operate.

When Cold Turkey is the right choice

Choose Cold Turkey if:

• Your distraction pattern is predictable and recurring
• You want maximum bypass resistance on a single Windows or Mac machine
• You are comfortable managing blocks through a dedicated app
• You do not need task-aware filtering or AI session triggers

Choose an AI-connected system-level blocker if:

• Your focus sessions are irregular and task-dependent
• You already work in Claude, ChatGPT, or similar daily
• You need accountable temporary unblocks without breaking Frozen-style lockdown entirely
• You want blocking triggered by stating what you are working on, not configuring schedules

How LockIn MCP addresses Cold Turkey's gaps

LockIn MCP shares the commitment to hard-to-bypass enforcement — hosts-file edits rather than a settings toggle — and adds two things Cold Turkey lacks:

Task-aware Chrome extension.Pages are evaluated against your currently stated task, not a fixed list configured yesterday. Research afternoon does not fight writing morning's blocklist.

Native MCP connectivity.Tell Claude or ChatGPT what you are working on. The assistant starts a focus session, enforces blocking, and manages time-boxed unblocks — logged on your dashboard, automatically reinstated when the timer ends.

For the full AI blocking model, see AI productivity distraction blocking. For system-level enforcement context, see best system-level website blockers in 2026.

Install:

npx -y lockin-mcp install

The bypass reality on your own device

Honest caveat for any desktop blocker, including both Cold Turkey and LockIn: you have admin access on your own machine. Determined bypass is always possible — booting into safe mode, editing system files manually, using a different device entirely.

The goal is not perfect security. It is raising friction at the moment of impulse high enough that you pause. Frozen Turkey does this well. System-level hosts blocking with AI accountability does it differently — through conversation friction rather than time-locked settings.

For anti-bypass tactics specific to Reddit and YouTube mid-task, see the anti-bypass guide.

A day-in-the-life comparison

Cold Turkey day:You configured a writing block from 8am–12pm last Sunday. Monday you have research calls at 10am and need documentation sites that overlap your blocklist. You either break Frozen mode early or spend ten minutes editing lists — then repeat tomorrow when the task mix changes again.

LockIn MCP day:You tell Claude at 8:15am: "Writing the launch post until noon — block distractions." At 1pm you start a new session: "Researching competitor pricing for 90 minutes — block social, allow documentation." Same strict enforcement underneath; different context on top. Exceptions flow through accountable unblocks instead of dismantling the whole session.

Neither day is perfect. The question is which friction pattern matches how your work actually changes hour to hour.

Frequently asked questions

Is Cold Turkey harder to bypass than a browser extension?

Yes. Frozen Turkey mode is specifically designed to resist mid-session disabling — a real advantage over toolbar-toggle extensions.

Does Cold Turkey sync across my devices?

No. It is installed and configured per device. Blocking rules do not automatically extend to your phone or a second computer.

Can Cold Turkey adapt to what I am currently working on?

No. It enforces a fixed blocklist and schedule you configure manually. It does not evaluate context or connect to AI assistants.

Does Cold Turkey block phone apps?

Cold Turkey Blocker is desktop-focused. Cold Turkey Writer is a separate product. Mobile blocking requires other tools — AppBlock, Freedom, or Opal on phone plus a desktop solution.

How does LockIn MCP compare on strictness?

Both use enforcement stronger than a browser toggle. LockIn adds AI-assistant integration and task-aware filtering on system-level blocking. Pricing: 3-day free trial, then $2.99/month or $59.99 lifetime. /get-started

Can I use both Cold Turkey and LockIn?

Possible but usually redundant on desktop. Most users pick one enforcement model per machine. Some use Cold Turkey for scheduled lockdowns and LockIn for AI-assisted variable deep work — test whether two blockers conflict before relying on both.