TTapp is a free Android app by Rota IT that provides information about table tennis competitions in the Netherlands. It presents all the match information of the season's competitions, as available in NAS, in a user-friendly format for smartphones. You can add your own pool and your friends' pool to the favorites section on the home screen to access them quickly.

TTapp contains the same information as publicly available in NAS and is continuously updated with the most recent information from it. However, it offers more features. You can enter the team composition and game results during the competition matches, allowing your clubmates to follow the results live point by point. It also provides the option to search for previous matches played against a specific player, with individual game scores that convey more information than just the set scores available in NAS.

TTapp also allows you to create a season plan for your team and synchronize it with your phone's calendar.