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D.off

Screen time limits you unlock by writing a sentence

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D.off helps you break free from phone addiction without willpower. Set time limits per app group, and when you hit them, unlock by writing out a sentence — three on the free tier — or swap one for a 30-second exercise. That pause breaks the autopilot scroll. 70+ achievements, sleep lock (Premium), site blocking across six major browsers, and 7 languages. No ads. The sentence library ships inside the app, so unlocking works with no network.

PH · launched Sep 9, 2026 · 1 upvote (top 69%) · 0 views

Niche: distraction and screen time blockers · 257 launches, 30 in the last 7 days ▲ +7% · Explore this niche →

Category and tags

  • Horizontal
  • Workflow automation
  • B2C
  • Not AI
  • Commercial product
  • Android
  • Health & Fitness
  • Productivity

Visit website ↗ Source listing ↗

Could you build this?

No Enforcing device-level app limits, hijacking app launches, and monitoring screen time requires native OS accessibility services on Android or the heavily restricted Screen Time / Family Controls APIs and MDM profiles on iOS.

What it would actually take: Building this requires native Swift/Kotlin code interacting with platform-specific restriction frameworks (Apple's Screen Time / FamilyControls API or Android's AccessibilityService and UsageStatsManager). The hardest parts are getting Apple entitlements approved for FamilyControls, preventing OS-level task killing of background services, and creating an unkillable blocking overlay UI.

Competitors

Other products that read as similar to this one : 820 launches clear the similarity bar, closest 8 shown.

Attention rank: #716 of 821 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 247 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.