I mean not the “30% Bonus” but a proper discount.
Cries about the lack of love shown to Steam users.
CHEAP-CHEAP-CHEAP 
Now I am getting curious if there are ever any improper sales…
Not sure what a “proper discount” would entail, but they have done some very nice one-time sales on android. Also, if you combine retail deals on iTunes cards(the better ones are around 20% off) with the 30% bonus, you end up getting a much better deal if those offers are available in your region.
I think he just means that a stark would cost $70 instead of $100 rather than just upping the amount of HP you get for $100 by 30%.
The only sale like this I can remember was the one-time android sale where they you could basically buy Logan’s Loonies for $5.
15% off sales are easy to find for ios and android users. Just keep your eyes open for discounts from physical brick and mortar stores. They often have 15% off sales on gift cards which you can apply to MPQ