UI design is often seen as a less lucrative field than front-end design. However, in recent years, the salary for UI designers has increased, as the field has become more specialized.
With the increase in mobile devices and apps, there is a greater need for UI designers who can create user interfaces that are both user-friendly and attractive.
As with any field, however, salary will vary depending on experience and qualifications. Generally, UI designers who have experience in user research and design, as well as experience with front-end development, can expect to earn a higher salary than those who do not have these skills.