there's a world of difference between Babbel and Duolingo. You have to pay to play when it comes to Babbel, which operates on a subscription-based model. A 6-month subscription costs $13.45 per ...

Learn more about my experiences with Duolingo, Babbel and Pimsleur ... and interactive tools for a single language, and costs $19.95 per month, but can only be used for a single language.

Best of all, these language services come at no cost. Still, those who want an ad-free learning experience can opt to purchase a Duolingo Plus subscription for $6.99 per month, which also allows ...