The new App named iReader App which supports all Feitian mobile readers on iOS, here is a list:
iR301, bR301, bR301BLE, bR500
https://www.ftsafe.com/Products/reader

iReader App support to communication with this reader with your card, contactless and contact card.
also, it takes private functions for readers, like get the serial number, reader ID, Bluetooth ID, reader name, model name, manufacturer and so on.

The iReader App is a reference App, which shows you how to use our API through reader do communication with your card and get your data from the card. based on this reference App, you can be based on our code to write your own App, for example, you can integrate card reader with your solution, to do payment, authentication, identification, and private network access.

Technical reminder:
iR301 and bR301 reader using the same SDK under iOS, since they are both accordances with iAP1 and iAP2 protocol which made by Apple, both using the External Accessory Framework. So you will need to add below protocol string into your App.
External Accessory Protocol:
- com.ftsafe.iR301
- com.ftsafe.bR301

bR301BLE and bR500 using Bluetooth Smart technology, apply Bluetooth 4.0 interface as a communication channel to connect with Phones.

You can find the source code from Github, link below:
https://github.com/FeitianSmartcardReader/FEITIAN_MOBILE_READERS

Other comments:
1. The iReader App only support one reader
2. Auto Pair only work for bR301BLE and bR500, since these device using Bluetooth Smart technology
3. To export the App log, please using iTunes export the log, the log will help us to check your issues with your reader and cards.