Natural 20 Lite App

Natural 20 Lite is a fast, comfortable dice roller for board games, war games, and RPGs like Dungeons & Dragons. It handles single and multiple dice rolls, includes default dice (D2–D100), Teacher’s Die for letters, roll history, and distribution plots. It runs on iPhone, iPad, and Apple Watch, supports VoiceOver, dark mode, and no adverts, and is cheaper than buying physical dice.

Free screens include Quick Roll, Multiple Dice, Teachers Die, Roll History, and Distribution. In-app purchases unlock Calculator, Custom Die, Colour Die, Direction Die, Success Die, Word Die, My Dice, and Dice Builder. Natural 20 Lite uses arc4random_uniform for RNG and has been tested for bias; the full version's Distribution screen allows large-roll testing and compares actual vs theoretical results.