Busuu– Practice in multiple languages, latest design is cool
Pacer – Good idea, weak implementation, bot accounts
Spotify– No ads, high sound quality, great playlists
Netflix- I think there is no need to explain what this app offers to people. It is quite good in movies/series streaming
Amazon Prime – No cargo fees, fast delivery, special discounts
Grammarly – Life companion in typing (I am not premium yet)
Also published on Medium.