PhotoMath mobile application, described as the world’s first camera calculator (just point the camera towards the mathematical expression, and PhotoMath instantly displays a correct result) with 5.5 million downloads posted amongst the top popular APP Store items. The app has been designed and developed by the team led by Damir Sabol well-known Croatian innovator and entrepreneur. Sabol founded and ran Iskon, the first alternative internet provider in the country (however, later acquired by incumbent HT), developed e-invoice solution, and PhotoPay, an application enabling payment of bills by taking its picture via smartphone, implemented by number of banks.