A VPN can unblock the social media platform such as Facebook, Twitter in school, however, most VPN will not work when you want to unblock school Wi-Fi, only a few reliable VPNs can bypass the anti-vpn programme of the school Wi-Fi.
TikVPN can hide your real IP address by routing your internet traffic with the best VPN tunnel, which will offer a bank-grade encryption, meaning you can bypass all the anti-vpn programme and visit the websites or apps you favor a lot, besides, the 256-bit AES encryption of TikVPN will protect your privacy very well, no one can track your traffic when you connect to the internet, not your school, not your ISP(Internet Service Provider), and not the hackers(the hackers track you by your IP address, and when connecting to TikVPN, your real IP address will disappear on the internet).
TikVPN can do this by either avoiding detection via obfuscated servers and by having such a large network that TikVPN can immediately replace any servers that are detected and blacklisted by anti-VPN programme.