PlugBrain

PlugBrain blocks apps and uses math challenges to reduce screen time.

AppID:	app.plugbrain.android
Author:	Mohammed-Said Belaid
License:	GPL-3.0-only
Donation:
InRepoSince:	2025-07-28
LastRepoUpdate:	2025-11-17
LastAppUpdate:	Unknown
LastVersion:	1.5.4
Categories:	Science & Education, Time
APK source:	Github
Google Play:	Check if it's there

PlugBrain is an app that encourages regular breaks from distracting apps by blocking access at scheduled intervals.
To regain access, you’ll need to solve a math challenge that adjusts in difficulty: the more frequently you use the apps, the harder the challenges become, but the longer you stay away, the easier they get.

**Features**

- No ads
- No internet required
- Blocks distracting apps
- Unblock apps by solving math challenges
- Difficulty increases with frequent use, decreases with focus

**How to use**

- Grant all required permissions
- Select distracting apps
- Choose your focus interval
- Stay focused ;)

Download Metadata Source Issues

While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device.

Packages

Version 1.5.4 (2025-11-17)

Android Versions:

Target: 15.0
MinVer: 9.0
ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

App Configuration & Special Access

Permissions:

Malware-Check:Passed

12 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
AppCompat (Utility)
support newer Android features on older Android versions.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
DataStore (Development Aid)
stores data asynchronously, consistently, and transactionally, overcoming some of the drawbacks of SharedPreferences.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Androidx Graphics (Utility)
leverages graphics facilities across multiple Android platform releases.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Kotlin (Utility)
The Kotlin Programming Language

Payment Modules:

None found
The Kotlin Programming Language

Ads & Analytics:

None found
The Kotlin Programming Language

Download (4.3 M)

Version 1.5.3 (2025-10-07)

Android Versions:

Target: 15.0
MinVer: 9.0
ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

App Configuration & Special Access

Permissions:

Malware-Check:Passed

12 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
AppCompat (Utility)
support newer Android features on older Android versions.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
DataStore (Development Aid)
stores data asynchronously, consistently, and transactionally, overcoming some of the drawbacks of SharedPreferences.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Androidx Graphics (Utility)
leverages graphics facilities across multiple Android platform releases.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Kotlin (Utility)
The Kotlin Programming Language

Payment Modules:

None found
The Kotlin Programming Language

Ads & Analytics:

None found
The Kotlin Programming Language

Download (4.2 M)

Version 1.5.2 (2025-10-02)

Android Versions:

Target: 15.0
MinVer: 9.0
ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

App Configuration & Special Access

Permissions:

Malware-Check:Passed

12 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
AppCompat (Utility)
support newer Android features on older Android versions.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
DataStore (Development Aid)
stores data asynchronously, consistently, and transactionally, overcoming some of the drawbacks of SharedPreferences.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Androidx Graphics (Utility)
leverages graphics facilities across multiple Android platform releases.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Kotlin (Utility)
The Kotlin Programming Language

Payment Modules:

None found
The Kotlin Programming Language

Ads & Analytics:

None found
The Kotlin Programming Language

Download (4.2 M)

PlugBrain

Packages

Version 1.5.4 (2025-11-17)

Android Versions:

App Configuration & Special Access

Permissions:

Features:

Malware-Check:Passed

12 Libraries detected:

Version 1.5.3 (2025-10-07)

Android Versions:

App Configuration & Special Access

Permissions:

Features:

Malware-Check:Passed

12 Libraries detected:

Version 1.5.2 (2025-10-02)

Android Versions:

App Configuration & Special Access

Permissions:

Features:

Malware-Check:Passed

12 Libraries detected: