PlugBrain APK

PlugBrain – A Smarter Way to Stay Focused

Overview

• PlugBrain is an open-source productivity app designed to help users build better focus habits by minimizing distraction from frequently used apps.

• It works by temporarily blocking access to selected apps at scheduled intervals, encouraging mindful breaks from digital noise.

• Instead of relying on timers or self-discipline alone, PlugBrain introduces a fun and engaging layer of accountability through math-based challenges.

• Users can only regain access to a blocked app by solving a short math problem, which acts as a mental checkpoint before returning to their usual digital routine.

• The challenge system is adaptive and dynamic.

• The more frequently you attempt to open restricted apps, the harder the math problems become, creating a subtle deterrent to impulsive checking.

• Conversely, the longer you stay away from distractions, the easier the challenges get—rewarding consistent focus with smoother access.

• This balance encourages gradual self-control and healthier digital habits over time.

Accessibility Service Disclosure

• PlugBrain uses Android’s Accessibility Service to detect when a selected app is launched.

• When a restricted app is opened, PlugBrain intervenes and displays a math challenge screen before granting entry.

• The Accessibility Service is solely used for monitoring app openings and applying focus restrictions; no personal or sensitive data is collected, stored, or shared.

• To ensure smooth operation, the app may request the Ignore Battery Optimization setting.

• This prevents the system from closing PlugBrain when it runs quietly in the background.

Key Features

• Completely open source and privacy-focused

• No advertisements or tracking

• Operates fully offline; internet connection not required

• Blocks chosen distracting apps efficiently

• Access only after solving math challenges

• Adaptive difficulty based on user behavior and focus duration

How to Use PlugBrain

• Grant the requested permissions during setup

• Select the apps you find most distracting

• Set your preferred focus interval or blocking schedule

• Choose your desired starting difficulty level

• Let PlugBrain handle the rest while you concentrate on your priorities

PlugBrain transforms smartphone usage into a mindful experience, helping you stay aware, intentional, and productive every day.

FAQ

Q: How does PlugBrain keep me focused?

A: Instead of simply locking you out or relying on timers, PlugBrain introduces math-based challenges whenever you try to access a restricted app. Solving these short problems acts as a quick mental checkpoint, reminding you to stay intentional about your phone use.

Q: Why does PlugBrain use math challenges?

A: Mathematical problems are brief but thought-provoking, requiring enough mental effort to interrupt impulsive app opening. They help you pause, think, and decide whether you truly need to use that app at that moment.

Q: Does the difficulty of the math challenges change over time?

A: Yes, PlugBrain’s challenge system adapts dynamically. The more often you try to open blocked apps, the harder the math gets. On the other hand, the longer you stay focused and avoid distractions, the easier the challenges become. This adaptive balance creates a rewarding feedback loop that strengthens your self-control.

Version History

v1.5.3——22 Oct 2025

PlugBrain is an open-source productivity app that blocks distractions with adaptive math challenges to build focus and digital balance. Download the latest version of PlugBrain to enjoy new features and updates immediately!

*1.5.3

Add Accessibility Service

*1.5.2

- Back button -> Do nothing

- Translation to Japanese

- Code Improvement

*1.5.1

Merge remote-tracking branch 'origin/master'