Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

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Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.

Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI

Lingvist - Lingvist helps you take your foreign language skills to the next level with a broad selection of exercises and lessons.

BriteVerify - Email Validation & Email Verification reduces bounce rates up to 98%. Rapidly verifying email addresses has never been easier, just drag drop and deliver!