Ninja: Screen Time App Blocker

Take back control of your screen time. You're in control, not your phone.

Ninja is an app blocker, screen time tracker, and digital wellbeing tool that helps you limit distracting apps, reduce phone usage, and stay focused on what matters. Set a daily limit on the apps that steal your focus, and let Ninja step in the moment you go over.

HOW NINJA HELPS YOU FOCUS

Choose an app. Set a daily time limit. When you reach it, Ninja steps in with a blocking screen — so you pause, notice, and decide instead of scrolling on autopilot. Simple, calm, and completely in your hands.

THREE WAYS TO BLOCK APPS — FROM GENTLE TO STRICT

🍃 Soft Mode: A short pause and a reminder — a gentle nudge to put the phone down.

⚖️ Medium Mode: A little friction before you continue. Choose how you unlock more time — solve a quick math problem to break the reflex, or take a few calm breaths before deciding.

🥷 Hard Mode: A firm block. When you hit your limit, the app closes. No negotiation.

EVERYTHING YOU NEED TO BUILD BETTER HABITS

📱 App Blocker: Set daily app limits and block distracting apps that waste your time

⏱️ Screen Time Tracker: See exactly where your time goes, day by day

📊 Your Journey: Watch your progress over time with clear stats and milestones

⏳ Grace Period: Give yourself a little extra time when you truly need it — you stay in control

🧘 Calm by design: No shame, no guilt. Just gentle awareness and real focus

WHY NINJA?

Most of us don't have a screen time problem — we have a "just one more scroll" problem. Ninja is a calm, focused app blocker that isn't here to shame you or lock you out. It steps in at the right moment, so you can reduce screen time, beat distraction, and stay present.

Whether you want to boost productivity, study more effectively, do a digital detox, or simply spend less time on your phone — Ninja helps you build better habits, one limit at a time.

PERMISSIONS NINJA NEEDS

To block apps and track your screen time reliably, Ninja uses a few special permissions:

Usage Access — to see which app is open and track your screen time. This is the core of how Ninja works.
Display over other apps — to show the blocking screen on top of an app when you reach your limit.
Ignore battery optimization — to keep monitoring running reliably so limits are always enforced on time.

Ninja uses these permissions only to help you manage your screen time.

You're in control, not your phone.

Questions or feedback? Contact us at [email protected]