iPhone in-app purchase for single and bundled items -

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iPhone in-app purchase for single and bundled items -

say illustration app music album can purchase single songs 0.99 each, or discount buying whole thing @ 1 time @ 7.99. in-app purchase, how handle scenario user buys 3 or 4 single songs 0.99 each, , 7.99 more expensive remaining songs combined?

the way can think of create new store item every cost point. surface store item user corresponded number of tracks they'd bought. huge pain in ass, don't know of automated way handle it.

in other words, let's album has 5 tracks. have is:

$0.99 track1 $0.99 track2 $0.99 track3 $0.99 track4 $0.99 track5 $4.99 entirealbum

what need is:

$0.99 track1 $0.99 track2 $0.99 track3 $0.99 track4 $0.99 track5 $4.99 entirealbum $3.99 entirealbumalreadyown1 $2.99 entirealbumalreadyown2 $1.99 entirealbumalreadyown3 $0.99 entirealbumalreadyown4

you have determine item offer user, based on own records of they've purchased.

iphone in-app-purchase

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