Whether you are commuting on a packed subway, sitting in a busy airport lounge, or working in a crowded coffee shop, using your smartphone in public often comes with an uncomfortable reality: shoulder surfing. Curious bystanders, intentionally or not, can easily view your private chat messages, sensitive banking details, and incoming verification codes.
While physical tempered-glass privacy protectors exist, they rely on micro-louver optical filters that permanently dim your screen, distort display viewing angles, and reduce touch responsiveness even when you are alone at home.
Aura Privacy approaches mobile screen security from a flexible software perspective. Designed natively for Android, it introduces an on-demand, customizable privacy overlay combined with on-device AI multi-face detection, notification masking, and touch-blocking protection.
How the On-Screen Privacy Overlay Works
Unlike permanent physical glass protectors, Aura Privacy generates a dynamic Android system overlay (TYPE_APPLICATION_OVERLAY) that sits above your active apps.
It does not physically alter the optical viewing properties of your phone’s display. Instead, it digitally dims or obscures screen content, providing an additional layer of visual privacy without changing the display hardware.
Key Controls:
- Variable Opacity Slider: Adjust the blackout density from 10% (subtle dimming) to 98% (near-total obscurity) depending on ambient lighting.
- Quick Settings Tile: Toggle your privacy shield instantly with a single swipe and tap from your Android notification drawer without opening the application.
- Floating Intensity Slider: A small, draggable floating handle that allows on-the-fly opacity fine-tuning from within any active chat or browser session.
Free Core Protection: Shield, Dimming, and Child Lock
Aura Privacy provides essential privacy and screen utility features completely free of charge:
1. Full Screen Privacy Shield
Conceal your entire display with a single tap. Ideal when entering passwords or reviewing financial accounts in public spaces.
2. Child Lock & Accidental Touch Blocker
When handing your phone to toddlers or friends to watch a video or look at photos, accidental taps can close apps, skip video timelines, or trigger unwanted phone calls.
Aura Privacy includes an accidental touch blocker that overlays a transparent touch-consuming layer across the screen. Unlocking requires an intentional, double-tap on a glowing handle with haptic feedback, helping prevent accidental taps while someone is watching a video or viewing your photos.
3. Built-in Trust Center
A dedicated in-app Trust Center that clearly explains why specific Android permissions (Overlay, Notification Listener, Camera) are requested, assuring users of 100% on-device processing.
Advanced Pro Protection: Spotlights, Curtains, and Automation
For power users seeking surgical screen privacy and hands-free security, Aura Privacy Pro offers specialized modes (available via permanent Lifetime Pro purchase or temporary 1-hour Rewarded Ad passes):
Focused Viewport Modes:
- Reading Strip: A 320-pixel horizontal transparent window that lets you read line-by-line in messaging apps while blacking out the rest of your screen; draggable via a smooth vertical handle.
- Circular Spotlight: A 480-pixel circular focus aperture tailored for entering bank OTPs, PIN codes, or reviewing confidential emails with an integrated 2D floating joystick.
- Privacy Curtain: A pull-down privacy shade that rolls down smoothly from the top of your display with intelligent snap points at 0%, 50%, and 100%.
Safe Notification Cover (OTP & Message Masking)
When someone is sitting right next to you, push notifications can expose private WhatsApp conversations or banking verification codes before you can react.
Using Android’s official Notification Listener service, Aura Privacy intercepts incoming notifications from user-selected apps and replaces the visible text with masked bullets (••••••••). An inline “Show Content” button lets you reveal the message only when you are ready.
Sensitive Apps Auto-Guard
Configure your banking, crypto, or private gallery apps to automatically engage the privacy shield the moment they are launched in the foreground, and automatically dismiss it upon exiting.
AI Shoulder-Surfing Detection: 100% On-Device Protection
Aura Privacy includes an intelligent anti-peeping alert system powered by Google ML Kit Face Detection streamed through the front camera via Android CameraX.
- How it Works: The algorithm monitors the camera frame at a battery-friendly 2 frames per second (every 500ms).
- The Detection Trigger: When two or more faces are detected in a camera frame (
faces.size >= 2), Aura Privacy can automatically activate the screen shield to help reduce accidental screen exposure. - Strict Local Privacy Guarantee: No facial recognition or identity tracking takes place. Camera frames are processed locally in device memory and are not saved as photos or videos or transmitted to a server. All frames are recycled immediately via
imageProxy.close().
Smart Sensor Gestures: Hands-Free Privacy Control
For situations where you cannot touch your screen or need instant concealment, Aura Privacy leverages built-in Android hardware sensors:
- Flip to Privacy (Face-Down): Using your device’s accelerometer, turning your phone face down or sliding it into your pocket automatically engages the blackout privacy shield. Returning the device to its normal position can automatically restore the screen.
- Wave to Hide: Using the proximity and ambient light sensors located near the earpiece, a quick hand wave above your phone toggles your privacy overlay without physical contact.
- Shake to Hide: A quick, intentional wrist shake immediately toggles the shield, giving you an emergency panic concealment option in crowded areas.
Battery Efficiency on OLED & AMOLED Screens
On OLED and AMOLED displays, black pixels can consume less power because individual pixels can turn off. Aura Privacy includes a True Black overlay designed to take advantage of this characteristic. Actual battery savings vary depending on the device, display settings, and usage.
Frequently Asked Questions
Does Aura Privacy replace a tempered glass privacy screen protector?
No. Physical privacy screen protectors use polarized micro-louvers to optically block viewing angles from the sides. Aura Privacy is a versatile software-based privacy overlay that conceals screen content digitally, masks notifications, and detects bystanders using AI, giving you control on demand without permanently darkening your hardware display.
Does Aura Privacy identify or record who is looking at my screen?
No. Aura Privacy does not perform facial recognition and does not identify people. The on-device ML Kit model only detects the presence and count of faces. Furthermore, all camera frames are processed exclusively in device memory and instantly discarded—zero images or recordings are ever created or uploaded.
Can I try Aura Privacy Pro features for free?
Yes. Aura Privacy operates on a fair freemium model. Core screen shielding, opacity sliders, and Child Lock are 100% free forever. Advanced Pro features (such as AI detection, Notification Cover, and Reading Strip) can be unlocked for 1 hour at a time simply by watching a rewarded video ad, or unlocked permanently through a one-time Lifetime Pro purchase.
Take Control of Your Screen Privacy Today
Stop worrying about prying eyes on the train, in lines, or at work. Enjoy flexible on-demand screen concealment, masked notification alerts, and intelligent shoulder-surfer detection with Aura Privacy.