Take advantage of a two-week free trial first. Afterward, keep an eye on promos on the Super subscription package.

This plan lets you club together with up to five other people — friends or family — to save on the yearly cost of Super Duolingo. In the UK, a Family Plan will set you back £89.99 for the year.

Cost: Duolingo is free. Super Duolingo, which eliminates ads and comes with unlimited features, is free for the first 14 days, then costs $6.99/month, billed annually.

Duolingo is moving on from its hearts mechanic in favor of energy. ... and a mistake will cost one energy. ... and subscribers to Super Duolingo and Duolingo Max will have unlimited energy, ...