SLOWLY is described as 'lets you meet pen friends from your smartphone! Match with someone that shares your passion, write a letter and collect stamps from around the world. Speak your mind – one letter at a time!' and is an app in the Social & Communications category. There are four alternatives to SLOWLY for the Web, Android and Android Tablet. The best alternative is PenPal World, which is free. Other great apps like SLOWLY are InterPals (Free), Penpals (Free) and Penpaland (Free).