KyuubiMask - Privacy First
KyuubiMask is a privacy-first notification masking tool that protects your sensitive information during screen sharing, presentations, or when your screen is visible to others.
🔒 PRIVACY FIRST
• No internet permission - works completely offline
• No data collection or storage
• No tracking, analytics, or ads
• Notification content is never logged or saved
• Open source with Apache 2.0 license
✨ FEATURES
• Masks notifications from any app you choose with generic text
• Tapping a masked notification opens the original app directly, without revealing any content
• Built-in presets for Slack, Discord, WhatsApp, and LINE
• Per-app toggle to choose which apps to mask
• Quick Settings tile for one-tap masking toggle
• Simple on/off toggle to enable or disable the service
• Works in the background
• Minimal permissions required
• Lightweight and efficient
📱 SUPPORTED APPS
KyuubiMask works with any installed app — select additional targets via the "Add custom apps…" button in Settings. Slack, Discord, WhatsApp, and LINE are available as built-in presets.
🎯 PERFECT FOR
• Screen sharing during video calls
• Live presentations and demos
• Recording tutorials or videos
• Working in public spaces
• Protecting your privacy
💡 HOW IT WORKS
When enabled, KyuubiMask replaces notification content from supported apps with generic text like "New notification", hiding sensitive information while still allowing you to see that you received a notification.
📖 WANT TO CHECK A NOTIFICATION LATER?
This app never saves notification content. If you want to review what you received, on supported devices (Android 11+), you can use Android's built-in Notification History if available and enabled (Settings → Notifications → Notification History).
🦊 OPEN SOURCE
All code is available on GitHub. No hidden functionality, complete transparency.
- Author: soraiyu
- License: Apache License 2.0
- Issue Tracker
- Source Code
- Changelog
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Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
Download F-Droid-
This version requires Android 8.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 2.5 MiB PGP Signature | Build Log
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This version requires Android 8.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 2.5 MiB PGP Signature | Build Log
-
This version requires Android 8.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 2.5 MiB PGP Signature | Build Log
• Added app store icon for F-Droid and other distribution channels