Binance Academy - Free learning resource for blockchain and crypto

PenPal World - Connect with people all over the world

CryptoHack - A fun platform for learning cryptography

Unbordered - Unbordered app comes up with features to help you in finding the perfect language practice and exchange partners so you can practice foreign languages right through your mobile phone.

Coin Demo - Visual demonstration of how bitcoin transactions work

Anygram - Anygram app offers features that let you meet new people so you can make new foreign friends practice native languages to learn something new.