Apple has implemented a program called “The Volume Purchase” program that allows approved educational institutions to receive 50% off when 20 or more copies of the same app are purchased for their staff members.
The developers have the option to opt out of this discount, so not every application will offer the discount even if you purchase 20 copies. Developers have to option for giving the discount. This way, if an educational institution chooses to purchase 20 copies of any of their apps, they’ll receive 50% off on the cost of the application.
So how does the Volume Purchase program work? Someone from an educational program must enroll by becoming the program manager for your institution. The program manager will be in charge of making the purchases, and after the codes are downloaded this person is in charge of distributing codes that teachers, therapists and other staff members can use to download the application free of charge on their end. he program manager can sign up for the program at http://edu-vpp.apple.com/asvpp.html .
The program manager can make payments using credit cards (American Express, Discover, MasterCard, and Visa), debit cards, cashier’s check, money orders, and even wire transfer. Financing is also available. For more info go to http://www.apple.com/legal/itunes/volume/us/terms.html .