Karma Firewall

Karma Firewall blocks apps from accessing the InternetApache-2.0

Rethink: DNS + Firewall + VPN

Firewall apps, use WireGuard VPN, monitor network, block malware, change DNS.Apache-2.0

NoUSSD

USSD firewallBSD-3-Clause

DroidWall

Firewall frontendGPL-3.0-only

blocker

A component controller for Android applicationsApache-2.0

Offline Puzzle Solver

Solves various kinds of puzzle (Sudoku, N-Queens)GPL-3.0-or-later

Tailscale

Mesh VPN based on WireGuardBSD-3-Clause

NextDNS Manager

Manage your NextDNS settings quickly and easily!MIT

Mattermost Beta

Secure, self-hosted workplace messagingApache-2.0

Watt

Disable or enable components(receivers/services/activities) easilyGPL-3.0-only

AFWall+

Control network trafficGPL-3.0-only

NetGuard

A simple way to block access to the internet per applicationGPL-3.0-only

SaverTuner

Extension to the built-in Android Battery SaverBSD-2-Clause

SimpleLogin | Anti-spam

Protect your email inbox with a secure and open source solution by SimpleLoginApache-2.0

InviZible Pro: increase your security, protect you

Comprehensive application for on-line privacy and securityGPL-3.0-or-later

Conversations

Encrypted, easy-to-use XMPP instant messenger for your mobile deviceGPL-3.0-only