Instead of using the old client, install the standard OpenVPN Connect app (still supports Android 4.4+). Then download Proton VPN’s OpenVPN configuration files from the official website. This gives you secure, up-to-date encryption without the bloated client.
Never download from random torrents or forums. Only use reputable archives that publish SHA-256 hashes.
Recommended sources (semi-trusted):
Q1: Is Proton VPN 3.4.3 still working in 2026? A: Partially. Many Proton servers have deprecated the old TLS certificate used by v3.4.3. You may see “Handshake failed” errors. Connections to “Free NL” or “Free US” servers often still work.
Q2: Can I download Proton VPN 3.4.3 for Mac? A: No. The macOS version numbering is different (starts with 2.x for legacy). Version 3.4.3 is Windows/Android only. descargar proton vpn 3.4 3
Q3: Will my paid Proton VPN account work on v3.4.3? A: Yes, login credentials still work, but you won’t see Plus servers or P2P servers listed correctly. You will be limited to Free servers only.
Q4: Is it illegal to use an older version? A: No, it is not illegal. But it violates Proton’s Terms of Service if you bypass security measures. They may send you an email asking you to upgrade. Instead of using the old client, install the
Proton offers a stripped-down version for legacy Android devices called Proton VPN Lite. It lacks advanced features but supports basic tunneling and is fully maintained.
