Focus Lock

SquareNex Technologies

About this app

Focus Lock is built to solve a real problem: modern devices constantly interrupt attention. Notifications, social apps, and quick distractions break concentration and reduce productivity. The app turns your device from a distraction source into a controlled, purpose-driven tool by enforcing a restricted usage environment.

At its core, Focus Lock uses a kiosk-style mode that locks the device into a controlled interface. Unlike basic “Do Not Disturb” settings, this cannot be bypassed easily. Once a session starts, the user is confined to a custom launcher where only selected apps are accessible. This ensures that time meant for studying or working is not lost to impulsive app switching.

The system allows full control over which apps are available during a session. Users can whitelist only the tools they actually need, such as a calculator, notes app, or educational resources. Everything else is blocked. This prevents unnecessary friction while still maintaining strict focus boundaries.

To handle different use cases, the app supports multiple profiles. A user can create separate setups such as a study mode, work mode, or a child-safe mode. Each profile has its own allowed apps, making it easy to switch contexts without reconfiguring settings every time.

A PIN protection system adds enforcement. It prevents users from exiting focus sessions impulsively. This creates intentional friction, forcing a conscious decision before breaking focus. It is a simple but effective behavioral control mechanism.

When activated, the app replaces the default home screen with a minimal launcher. This interface removes visual clutter and shows only essential elements: allowed apps, a clock, and a controlled exit option. The design supports clarity and reduces cognitive load.

The app also includes device-level controls. It can keep the screen active during sessions, manage brightness for comfort and battery efficiency, and use sensors to avoid accidental interactions when the phone is not in use. These features support long, uninterrupted work periods.

The product is designed for multiple user types. Students can use it for exam preparation, professionals for deep work, parents for controlled device access, and creatives for distraction-free environments. The core value remains the same across all cases: enforced focus.

From a technical perspective, the app runs locally and does not depend on external tracking. User data is not collected or monitored. The focus is strictly on functionality, performance, and privacy.

Overall, Focus Lock is not just an app blocker. It is a system that enforces intentional device usage, reduces distractions, and helps users maintain consistent focus over time.

Focus Lock uses the Android AccessibilityService API to support its core productivity functionality: App Locking & Focus Mode enforcement.

How it works:
1. When you activate a Focus Mode session, the Accessibility Service monitors which apps are currently being launched on your device (via window state change events).
2. If you attempt to open an application that is not in your allowed whitelist, the Accessibility Service intercepts the launch and redirects you back to the Focus Lock screen.
3. This helps you maintain your focus and limits distractions by keeping you locked to authorized apps.

Data Privacy & Security:
- We value your privacy. The Accessibility Service operates entirely locally on your device.
- No personal, sensitive, or user-identifying data is accessed, read, collected, stored, or shared with third parties.
- The service is strictly used for detecting app launches and does not perform gestures or modify device configurations without your permission.
- You can enable or disable this service at any time through your Android Settings > Accessibility.