Maybe, but there's plenty of apps that flat out ask for that.

Here's a particularly shameless example: http://imgur.com/8UGRals

But yeah, you'd probably get better results if you're like "hey, here's this free thing, want it?" (tap YES) "Here you go!" ... "Please go rate us thanks it really helps" because of people's sense of reciprocity.

In any case, my point is to use your fans and your customers to boost your rank, rather than shady services and botnets.

Maybe subliminal messaging then? Why would people give anything but a good review if they are already investing time in getting the item?

> Maybe subliminal messaging then?

Ask for a review after the user gets 5 stars in a level? :p