Greetings OSR PIT community, how are you? 
We re Drakkarti, a brazilian startup that develops apps to assist players in several RPG games and boardgames.
We invite you to discover our latest news. Rolld, a free app that generates different types of dices (numeric, alphanumeric, for RPG, for table games, customized) and allows you to roll as much dice as you want, add modifiers, consult the history and more, all in a very intuitive way:
Android: https://play.google.com/store/apps/details?id=com.Drakkar.Rolld
It was an app made by fans for fans of this type of game. Therefore, feel free to download the application, send us feedbacks and if you find it interesting to help us with the disclosure.
We thank you for the opportunity, and if you are interested in knowing more about the app or the company, visit www.drakkarti.com or send us a message, we will be happy to return to you.
Best regards and good play!
Drakkar Master