What should i use, SSL or JWT?

Hi im new developing mobile apps, i have to create an app that get data from springboot backend, i already implemented JWT on Both sides but i dont know if it is enough or i need to use a SSL certificate too?.

The information that the aplication handle is password, email and personal information of the user.

Best regards

You absolutely need to use SSL here, otherwise user personal information is being transmitted in the clear across an untrusted network. LetsEncrypt provides free SSL certs if you need one.

JSON Web Token ( JWT ) is a compact URL-safe means of representing claims to be transferred between two parties. They can be used for authentication and authorization and transmitted over SSL for secure communication. More about JWT here