My app needs a computer voice to output text, and the user should have the ability to choose a voice of his / her choice.
I've seen other application do this via in-app-purchases.
The user is presented a list of available free / purchase voices, and the user can purchase it.
I know it sounds silly, but I don't know how this is done.
Do I have to ask the author of the computer voices for permission so that I can show them as an in-app-purchase?
And I would also very much like to ask if the voice itself would then be a non-consumable, and I would have to keep track that the user purchased it?
Thanks for the newbie help very much!