#kotlin#android#android_app#android_application#android_firewall#anti_censorship#anti_surveillance#censorship_circumvention#censorship_resistance#dns#dns_over_https#dnscrypt#firewall#internet_freedom#open_source#privacy_enhancing_technologies#wireguard
Rethink DNS + Firewall + VPN for Android is an app that helps you control your internet privacy and security easily without needing root access. It combines a VPN using WireGuard, a firewall that blocks internet access for apps based on your preferences (like when apps run in the background or by category), and a DNS-over-HTTPS client that hides your DNS requests from ISPs and censors. You can route different apps through different VPN tunnels, block ads and malware sites, and monitor which apps connect to the internet. This gives you more control over your data, reduces tracking, and helps bypass censorship on your Android device.
https://github.com/celzero/rethink-app
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https://altcha.org/
Free, open-source #Captcha alternative
ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content.
Unlike other solutions, ALTCHA is free, open-source and self-hosted, does not use cookies nor fingerprinting, does not track users, and is compliant with data-privacy regulations and accessible.