價格：免費
檔案大小：15.5 MB
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
After downloading the application “”, the user will be able to access the “Elevator button” with a large arrow. The direction of this arrow changes depending on the direction of movement of the elevator.
Passengers have their own names, which are assigned to them when the application is started and that do not change during the whole time. For example: a passenger in the elevator 12 5 has the name “12” - that is, it is a passenger from the 1st floor who was 2nd when he moved into the floor and travels to the 5th floor.
支援平台：iPhone