HelloTalk

A language exchange social network where you teach someone your native language and they teach you theirs. HelloTalk pairs you with native speakers worldwide and provides built-in translation, transliteration, grammar correction, and voice-to-text tools. The magic is in the Moments feed — basically Instagram but multilingual, where you post in your target language and get corrected by native speakers. Over 40 million users across 150+ languages. Free with ads, premium at $7/month.