WishSimulator.App is a web-based application that simulates the Genshin Impact wish system. It is a free program that can be accessed through any chrome-based browser on Android. The app features all banners available, starting from 1.0 to the latest version, including standard and beginner wishes that load different items on different versions.

WishSimulator.App has a Gacha History layout that is customized to be similar to the in-game layout, both old and new versions. The program also has a Pity Counter and cost estimator in multiple currencies. It has an inventory feature that shows the characters and weapons available, and a shop feature to refill primogems and exchange gacha milestones. The gacha algorithm is almost like the real one, as the rate of getting a rare item increases once you reach a certain pity, giving you a more accurate visualization of your luck. The app also updates automatically for you, so there is no need to update it manually when a new banner is released.