Stop shoulder surfing. PeekShield keeps your screen private in crowded places—on the bus, at a café, or on campus. When someone looks at your phone, you get a subtle “Peeker detected” alert so you can react instantly. Everything runs on-device. No photos are saved or uploaded.

Why users choose PeekShield

On-device detection — processing happens locally on your phone.

No photos saved — privacy by design; nothing leaves your device.

Instant alert banner — a clean “PEEKER DETECTED” bar you control.

Guard Mode — one-tap, continuous protection in the background.

Smart Schedules — auto-activate during commute/class hours.

Custom alerts — vibration/flash options and sensitivity slider.

Battery-friendly & offline — optimized for everyday use.

Perfect for

Public transport, cafés, libraries, co-working spaces

Students, commuters, professionals, travelers

How it works

Turn on Guard Mode.

PeekShield monitors for shoulder-surfing attempts using on-device signals.

If a peeker is detected, you’ll see a subtle banner (and optional vibration/flash).

Adjust sensitivity and alert style anytime.

Your privacy matters

Detection is processed locally on your device.

No photos or videos are stored or sent to servers.

Works even without internet.

Key features

One-tap start & Quick Settings tile

Scheduling & auto-resume

Sensitivity control for different environments

Minimal, professional UI with clear alerts

Lightweight; supports modern Android devices

Get started
Install PeekShield, enable Guard Mode, and keep your screen private—anywhere.