For LeadPages, yes. For Elementor, no.
LeadPages is a paid software program. These templates work with any level account they offer, including their standard account. You can sign up for a 14-day free trial using my affiliate link to try it out.
You can access these templates using the free Elementor plugin for WordPress. We do strongly recommend buying the Elementor Pro version for just $49 per year. You can use my affiliate link to try it out.