If I buy the full version of MyiBidder for my PC, will I also have to buy the full app version for my iPhone? How does that work? Considering the PC version is $12.95 and the app is $11.99, surely you only have to buy one.

Thanks!

The PC version runs on Windows. Your iPhone can not run Windows applications, so you have to purchase another one specifically for your iPhone.
Please note, if you can't buy both versions, you can still use the free Web-based version of Myibidder using Safari on your iPhone.