A: No. Apple rejects firmware flashing apps. The official version is a web app installed via Safari > Add to Home Screen.
XiaoDash is arguably the most powerful native iOS app for flashing and tuning Xiaomi and Ninebot scooters. Available directly on the App Store, XiaoDash has evolved into a highly sophisticated utility.
While you can't download the official utility, iOS users often use these workarounds: ScooterCompanion