Which is the current standard for encrypting HTTPS traffic?
HTTPS today uses Transport Layer Security, or TLS. TLS is a network protocol that establishes an encrypted connection to an authenticated peer over an untrusted network. Earlier, less secure versions of this protocol were called Secure Sockets Layer, or SSL).
Do mobile apps need SSL certificate?
The only way to ensure that your mobile app is completely secure is to purchase an SSL certificate. These provide HTTPS to your app and assure the users that your mobile app is safe to use. You should get an SSL certificate for all your websites regardless of whether they are accessed by phones, tablets, or laptops.