The software is only required for download to play the heavy graphic 3D games, mostly 3D slots, but online bets do not require any software download. Online sportsbooks use two playing formats, the online flash version and the downloadable platform mostly used for casino games and poker. That is also taking into consideration that users do not need an app at all, they can login from their phones directly to the websites and take bets, manage their account, make deposits, play on the casino or poker with no problem. The big app stores still deny the entrance to betting apps, iTunes and Android have strong guidelines against this market which has discouraged many online sportsbooks to develop their own app. That number is said to triple for 2020 by its rapid growth. Mobile betting became a thing back in 2013 and now around 20% of all bets are done through mobile devices for very specific reasons. Online betting sites began their appearance in the 90´s and took flight around 20 with all major bookies from the UK and US looking for a share in the internet frenzy. Surprising enough mobile betting apps are new to the market.