Let me say first that this may or may not be a possibility, but if you are interested to purchase an Apple iOS app at about a 15% savings, here's how my son did it:
Last year Sam's Club had a sale price of iTunes gift cards. My son bought $600 worth iTunes store credit and was able to buy the Verituner app for a little over $500 out of his pocket. Of course CyberTuner, TuneLab, and Tunic OnlyPure are also available in iOS versions.
I noticed today that Sam's Club's Black Friday sale this year offers the iTunes $100 Multi-Pack Gift Cards for $84.47 USD. If you're interested, you can see their online flier here:
The flier says it is online only and shipping is free. Purchase can be made start at 12:01 AM EST Thanksgiving Day at samsclub.com/blackfriday, No indication as to whether there is a limit to how many cards can be purchased. Perhaps this is only available in the US. I don't know. At this time of year, there may well be other retailers offering discounted prices on iTunes cards.
I simply pass this on FYI. It was a good deal for my son last year, and perhaps some others could benefit this year.
Last edited by DavidWB; 11/18/17 11:15 PM.