App Intel
512

4kus

LiveSoyamba8 apps · 2.8K installsProductivityFreeIn-app purchases: $0.59 - $17.99 per itemcom.brainfocus.brainfocus

Lock distracting apps complete a task.Focus, discipline, and healthy habits

Alert me★ WatchOpen in Play ↗
Total installs
2
exact · Play shows 1+
Installs / day
~0
est. · lifetime avg over 88 days
Rating
—★
— ratings · — reviews
Released
15 Jul 2026
3mo ago
Last update
15 Jul 2026
v1.0.0 · 3mo ago
Countries
—
not checked yet

Install history

exact counter from Google Play
Not enough history yet — check back tomorrow
Not enough history yet — check back tomorrow

Installs per day · last 90 days

Not enough history yet — check back tomorrow

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • No data shared with third parties
  • No data collected
  • Follows the Play Families Policy

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

12 in 5 groups
7 Sensitive2 Notable3 Routine

What this app can do with your phone

  • Use your camera to take photos and record videos
  • Record sound using your phone's microphone
  • Read photos, videos, and other files saved in your phone's shared storage
  • Add, change or delete photos, videos and other files in your phone's storage
  • See which apps you use and how often, if you allow usage access
Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
StorageSensitive2

Access to files, photos and media saved on your phone's storage

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
CameraSensitive1

Access to your camera to take photos and record video

  • Use your camera to take photos and record videostake pictures and videos · CAMERA
MicrophoneSensitive1

Access to your phone's microphone to record sound

  • Record sound using your phone's microphonerecord audio · RECORD_AUDIO
OtherSensitive6

Access to miscellaneous device features that don't fit other categories

  • See which apps you use and how often, if you allow usage accessupdate component usage statistics · PACKAGE_USAGE_STATS
  • Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET
  • Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Screenshot 1 Download
Screenshot 2 Download
Screenshot 3 Download
Screenshot 4 Download
Full description
4kus is a smart productivity app that helps you reduce mindless scrolling and regain control of your screen time. Instead of instantly opening distracting apps, 4kus challenges you to earn access through a quick quiz or a simple exercise. Whether you're trying to study, work, exercise, or simply spend less time on social media, 4kus helps you make intentional decisions before every distraction. How 4kus uses the AccessibilityService API 4kus uses Android's AccessibilityService API to power its core app-blocking feature: the service detects when you open an app you have chosen to block, so 4kus can immediately show the unlock challenge before you start scrolling. Your privacy is protected: • The service only observes which app is in the foreground — it cannot and does not read your screen content, messages, passwords, or payment information (window content retrieval is disabled). • No data from the service is collected, stored remotely, or shared with anyone. • The service is optional and only activated if you enable it yourself in Android Settings, after 4kus explains why it's needed. • You can disable the service or uninstall 4kus at any time.

What's new

Break bad screen habits by locking distracting apps until you complete a quiz or exercise. Build focus, discipline, and healthier digital habits.

Growing in Productivity

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