Log In / Sign Up
There are lots of little things that you can do to improve your signup rates. Adding one click signup options increase signups by almost 400%. Encouraging them to create a strong password not only improves security, but can increase your perceived credibility that you are a legitimate application. Credibility being the 2nd largest driver that affects signups.
Even little things like your text copy reassuring them that this is in fact a good decision, makes an impact on the number of signups, which in turn increasing the number of paying users. Logins can be improved as well. Users will often have multiple different email addresses, and will not always remember which email they signed up with. So rather than having them reset their password over and over again, giving them visual feedback that this is in fact the email that they signed up with can reduce the number of failed login attempts by up to 40%.