Neither Duolingo nor Rocket Languages offers a free trial.
Duolingo is designed for Individuals, Freelancers and Small Business.
Rocket Languages is designed for Individuals, Medium Business and Small Business.
The starting price of Rocket Languages begins at $99.95Instant lifetime access, while pricing details for Duolingo are unavailable.
Some top alternatives to Duolingo includes Qualified, Workvivo, Rosetta Stone, LanguageMate, LearnOasis, Fluenz, Yabla, Pimsleur, Rocket Languages, Babbel for Business, italki and Memrise.
Some top alternatives to Rocket Languages includes Qualified, Workvivo, Rosetta Stone, Yabla, Pimsleur, Verbling, Babbel for Business, italki, Mango Languages, Memrise and Duolingo.