Portal Square Order is an iPhone app developed by LUX SPIRAL.INC, available for free in the Lifestyle category. This app facilitates the ordering process for merchandise at live events featuring スフィア, TrySail, and various solo artists. Users can create a list of desired items in advance, which can be easily ordered at the register by presenting a QR code on the screen. Additionally, if credit card information is pre-registered, payment can be conveniently made using the QR code at the register.

Please note that this app is solely for creating order lists and does not support merchandise reservation, advance payments, or online purchases.