NetTide is a powerful tool that gives you complete control over your device's network connection. Our
application is designed for those who want to avoid unexpected mobile data costs, especially while
traveling and roaming.

Core Feature: Internet Access Block

The key feature of NetTide is the ability to instantly block all internet access on your device. We
achieve this using the VpnService API provided by Android.

Why We Use VpnService

The VpnService is an essential part of our application and is used to implement our core feature—total
network traffic blocking. Here is how it works:

1. Creating a Local VPN Tunnel: When you activate the block in NetTide, the app creates a local (on-device)
VPN tunnel.
2. Blocking Traffic: All outgoing traffic from all applications on your phone is routed to this tunnel,
which is configured as a "blackhole." This means the traffic is not redirected to any external server but
is instead securely blocked within the device itself.
3. Privacy and Security: It is important to emphasize that NetTide is not a classic VPN service. We do not
collect, store, or redirect your personal data or network traffic to any remote servers. All processing
occurs exclusively on your device. The VpnService is used only as a tool to create firewall rules.

Who Is This For?

* Sailors: Manage expensive satellite or port internet connections and avoid unexpected charges while at
sea by ensuring data is only used when you explicitly allow it.
* Travelers: Avoid huge roaming bills by completely disabling mobile data when you don't need it.
* Budget-Conscious Users: Prevent background apps from consuming your mobile data allowance by accident.

NetTide uses the VpnService to provide a powerful firewall feature, giving users unprecedented control
over their device's network connection. We are committed to full transparency and assure our users that
their data remains completely secure and never leaves their phone.