Themeum “Educon” is an all in one Education WordPress Theme built for any university, college, school and another type of educational institutions. The theme has a clean design with powerful features. Educon education theme lets you have a noticeboard, event albums, profile listing and course listing systems on your site.

Go to modify that files for changing the “Apply Now” button

/wp-content/plugins/themeum-core/vc-addons/featured-courses.php
Line # 103

$output .= '<a class="btn btn-primary" href="' . get_permalink() . '">' . esc_html__('Apply Now') . ' <i class="fa fa-angle-right"></i></a>';

/wp-content/plugins/themeum-core/vc-addons/themeum-courses.php
Line # 115

$output .= '<a class="btn btn-primary" href="' . get_permalink() . '">' . esc_html__('Apply Now') . ' <i class="fa fa-angle-right"></i></a>';

Let me know if you need my assistance.

Thanks a lot.