PCB Board (Physical & Digital) & APP iOS Emulator NFC / RFID

Hello, the project to develop is a NFC / RFID emulator for use in a bracelet, the project would focus mainly on the stages, PCB development and app for iOS. Another option, depending on the cost of development, would be to develop only an app for the Chameleon Tiny Pro device, currently there is an iOS app for this device, but I would like the app to be easy to use by any type of person, where only select the Slot and it is stored, can include the name of the card and be able to put a date on which it is automatically deleted. The two devices I am relying on are Chameleon Tiny Pro and Flipper. If you need more information, I can provide it. Thanks