Dull vs Opal

The core difference: blocking vs filtering

This is not a close comparison — these apps solve fundamentally different problems and should be evaluated against different needs.

Opal blocks apps. When a block is active (either a scheduled session or a manually started focus session), Opal intercepts network traffic via a VPN profile and prevents the app from loading. You tap Instagram and nothing happens, or you see a block screen. When the session ends, Instagram opens exactly as it always did — Reels, "For You," suggested content, all of it.

Dull filters apps. You open Instagram through Dull's browser. It loads the real Instagram mobile site but strips Reels, the Explore feed, and suggested posts before the page renders. You are always inside Instagram. The difference is what Instagram contains when you get there.

What problem does each solve?

Opal solves: "I open apps too often, including when I shouldn't." If you find yourself picking up your phone every 10 minutes, opening Instagram for no reason during meetings, or unable to stop checking your phone late at night — Opal's hard block addresses that. It removes the option.

Dull solves: "When I open social media, I end up watching Reels for 40 minutes." The compulsion is not in the opening — it is in what you find once you are there. Removing short-form content and algorithmic feeds removes the mechanism that turns a 5-minute check into a 45-minute session.

Both problems are real. Many people have both. If that is you, using both apps simultaneously is a reasonable approach — Opal handles the native apps, Dull becomes your go-to for actual social media use.

The "after the block ends" problem

One criticism of full blockers: they do not change what you find when the block lifts. After a 4-hour Opal deep focus session, Instagram opens at the exact same Reels tab it always does. The content loop — the thing that makes social media compulsive — is untouched. You have trained yourself to wait out the block, not to use social media differently.

Dull's approach changes the experience permanently. There is no "after the block ends" because there is no block. Every time you open Instagram through Dull, Reels are not there. Over time, your expectation of what Instagram is changes.

Pricing

Opal costs $99.99/year — 6.7× more than Dull's $14.99/year. Opal's lifetime plan is ~$400. Opal has a free tier with limited blocks; Dull has a 7-day free trial.

Opal's pricing reflects its scale (4 million+ users, a team, enterprise features) and its positioning as a premium focus tool. Dull's pricing reflects a focused product for a specific use case — filtering social media, not managing focus across every app.

Opal's gamification

Opal has leaderboards, gems, streaks, and focus scores. For users who find this motivating, it is a genuine advantage. For users who find the gamification patronizing or anxiety-inducing ("I broke my streak"), it is a drawback. Dull has none of this. It tracks your usage time per platform and shows you a days-on-your-terms counter, but there are no scores, no leaderboards, no rewards.