(TrendHunter.com) memoryOS, the start-up founded by 2X World Memory Champion Jonas von Essen, is developing an innovative and gamified learning app to help people improve their memory in an enjoyable way. The app... (TrendHunter.com) memoryOS, the start-up founded by 2X World Memory Champion Jonas von Essen, is developing an innovative and gamified learning app to help people improve their memory in an enjoyable way. The app...