Licensing. Adroid Pro 4 with Unity Pro 3.

I’ve got Unity Pro 3 with iOS Pro 3. Is it possible to buy Android Pro 4 without upgrading Unity Pro and use it with Unity 3?

I mean that now it’s enough for me to use Unity 3. And I would better upgrade it at summer or something. And better without paying $750 for upgrading Android Pro from 3 to 4.

Is it possible to do so?

It is not, if you look at the store, if you click “Read More [+]” under the add-on product, they are dependent on Unity 3D 4.x. Further more, you can’t have any Pro mobile version without upgrading Unity to Pro. So the pro’s go with pro and 4.x goes with 4.x of unity.