NetBlock Shield – App Blocker

Take total control of your mobile network, block unwanted data usage, and protect your digital privacy with NetBlock Shield – App Blocker.

NetBlock Shield is a powerful, on-device internet firewall and application blocker that allows you to restrict Wi-Fi and mobile data access for any installed app or system service with a single tap. Stop background data leaks, block annoying in-game ads, boost productivity by cutting social media distractions, and reduce your monthly cellular bills without putting your entire phone into Airplane Mode.

Google Play Policy Compliance: Use of VpnService
NetBlock Shield utilizes Android’s VpnService as its core technology to create a local, on-device packet-filtering network interface.
- Why VpnService is Required: The VpnService API is strictly used to create a local, virtual network tunnel on your device. This allows NetBlock Shield to intercept and block outgoing internet traffic on a per-app basis directly on your phone without requiring root access.
- Privacy & Security Guarantee: Our local VPN service does not route your internet traffic through external, third-party remote servers. All packet inspection and network blocking happen 100% locally on your device. NetBlock Shield does not collect, store, or transmit any personal network data.

Key Features & Capabilities
- Per-App Internet Blocker: Individually grant or deny internet access for Wi-Fi and mobile cellular data across all your apps.
- Master One-Tap Shield: Enable or disable global firewall protection instantly using the central master switch.
- System & User App Visibility: Choose to manage network rules for downloaded apps or include pre-installed OS system services.
- Local Network Passthrough (LAN): Keep local smart home devices, Chromecast, and local network transfers connected while blocking outgoing public internet connections.
- Zero Root Required: Protect your privacy safely without rooting your Android device or voiding your device warranty.
- App Lock & PIN Protection: Protect your firewall configuration with a custom PIN so unauthorized users cannot tamper with your rules.
- Battery & RAM Efficient: Engineered with lightweight native packet filtering to ensure minimal CPU load, low memory footprint, and max battery conservation.

Why Use NetBlock Shield?
- Save Mobile Data & Cut Phone Bills: Prevent data-hungry apps and automatic background updates from consuming your expensive mobile data plan.
- Block In-Game & In-App Ads: Enjoy ad-free offline gaming by blocking cellular and Wi-Fi access to ad networks and analytics trackers.
- Distraction-Free Focus & Productivity: Silence messaging apps, social media, and games during work, study, or family time without disconnecting essential work apps.
- Enhanced Mobile Privacy: Prevent untrusted apps from silently sending personal data or tracking telemetries in the background.