PROTECTDATA



A simple way to block access to the internet per application

 

 PROTECTDATA

 

PROTECTDATA provides simple and advanced ways to block access to the internet - no root required.
Applications and addresses can individually be allowed or denied access to your Wi-Fi and/or mobile connection.

Blocking access to the internet can help:

  • reduce your data usage
  • save your battery
  • increase your privacy

 

 

Features

  • Simple to use
  • No root required
  • 100% open source
  • No calling home
  • No tracking or analytics
  • No advertisements
  • Actively developed and supported
  • Android 5.1 and later supported
  • IPv4/IPv6 TCP/UDP supported
  • Tethering supported
  • Multiple device users supported
  • Optionally allow when screen on
  • Optionally block when roaming
  • Optionally block system applications
  • Optionally notify when an application accesses the internet
  • Optionally record network usage per application per address
  • Material design theme with light and dark theme

There is no other no-root firewall offering all these features.

 

Pro features

The following pro features are available for in-app purchase:

  • View traffic log - allows displaying and exporting1 a detailed outgoing IP traffic log for all applications, so you can exactly see what your device is doing at any moment
  • Filter network traffic - allows selective blocking of network traffic per address per application, so you can block applications from calling home, etc while retaining internet access; enable/disable filtering mode using a settings tile (settings tiles are available from Android 7 Nougat)
  • New application notifications - enables new application notifications from which you can directly block or allow an application
  • Network speed graph notification - allows displaying the current network speed as a graph in a status bar notification (the top three apps are shown on Android 5 Lollipop or earlier)
  • Appearance (theme, colors) - allows selecting from five additional application themes, all available in a light and dark variant
  • Support development - support ongoing development, like adding new features, improving existing features, fixing bugs and adapting PROTECTDATA to new Android versions

1 Exports are in the popular PCAP format, which can be opened in for example Wireshark

 

Terms and conditions

  • By donating you agree to these terms and conditions
  • Donations are completely voluntary, so there are no refunds
  • Donations motivate me, but do not require me to maintain and support PROTECTDATA
  • You are liable for any processing fees that occur due to a chargeback of a donation
  • PROTECTDATA is provided "as-is", for details see the license

Privacy policy

Privacy is my policy: I will not, under any circumstances whatsoever, give out or sell privacy sensitive information to anyone, unless required by law.

Copyright © 2015–2020 by Marcel Bokhorst (M66B)

 

 

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PROTECTDATA FAQs

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  PROTECTDATA Please scroll down if you want to ask a question answered, or report a bug. Frequently Asked Questions (FAQ) (0) How do I use PROTECTDATA? Enable the PROTECTDATA firewall using the switch in PROTECTDATA's action bar Allow (greenish*) or deny (reddish*) Wi-Fi or mobile internet access using the icons next to an application name in PROTECTDATA's applications list You can use Settings > Defaults to change from block/blacklist mode (disable Block Wi-Fi and Block mobile , and then block unwanted applications in PROTECTDATA's applications list) to allow/whitelist mode (enable Block Wi-Fi and Block mobile , and then allow desired applications in PROTECTDATA's applications list). * Depending on the theme you use, the icons may be: Allowed (internet access permitted): green/ blue / purple / grayblue / peach / greenish Blocked (internet access denied): blood red/  salmon / brown / light gold / beige / teal (1) Can PROTECTDATA completely protect my ...
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How to read the block traffic logs

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  How to read the blocked traffic log? The columns have the following meanings: Time (tap on a log entry to see the date) Application icon (tap on a log entry to see the application name) Application UID Wi-Fi / mobile connection, green=allowed, red=blocked Interactive state (screen on or off) Protocol (see below) and packet flags (see below) Source and destination port (tap on a log entry to lookup a destination port) Source and destination IPv4 or IPv6 address (tap on a log entry to lookup a destination IP address) Organization name owning the IP address (needs to be enabled via the menu) Protocols: HOPO ( IPv6 Hop-by-Hop Option ) ICMP IGMP ESP (IPSec) TCP UDP Number = one of the protocols in this list 4 = IPv4 6 = IPv6 Packet flags: S = SYN A = ACK P = PSH F = FIN R = RST For a detailed explanation see here . Only TCP, UDP, and ICMP ping traffic can be routed through the Android VPN service. All other traffic will be dropped and will be shown as blocked in the global tra...
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