Apple requires that eKeypad licenses be associated with your Apple ID. This means that you will need a different license for each Apple ID used on your devices. A license for eKeypad is valid on both the iPhone or iPad.
This means that if you have three mobile devices that are managed by a single Apple ID you will only need a single license for all three devices.
However, if your three mobile device are manage by three different Apple IDs then you will need three licenses. One for each Apple ID.
Apple does not allow for volume discounts. If you need multiple licenses it is not possible to discount the additional purchases.
If you need a large number of licenses contact us. A custom application may be more economical.