UPDATE;
Thanks to a suggestion above, I am now going to try and play around with the traffic to reap more from them.
I am testing out the following:
1. Send all traffic to bit.ly link which points to a simple page on my site with an email opt in form (double opt in - so that we get an even better list). Will be using MadMimi for this simply because I like their straight forward features.
2. Once someone has confirmed their email, they will receive a link to the actual site where they need to install the app.
3. Once they install the app, they will be redirected as usual to the final page.
The only change in this method is the fact that I will be collecting emails from people. Now this may reduce the conversion rate slightly but shouldn't be too much of a problem as entering an email and verifying it doesn't really take too long. You can shorten the process by choosing to disable the double opt in requirement on your form.
You could even twist it again by switching things around. For example, you could redirect them to the opt in form after they've installed an app. This could possibly work better as the person has already installed the app, so they would probably resort to filling out the form too as they've already made it halfway.
I'm going to test out both of the above ways for the next 15 hours (6 hours each).
And if we do manage to get a healthy sized list, I can email them later on with a few offers (that's only if we get a decent sized list). You don't have to just collect an email - why not collect more details too? After all, the more targeted/accurate your email list is - the better chance of conversions later on when you email them with specific offers or products.
I'm not expecting to make too much on the emails I send to the list as some of these guys are looking for 'free cheats' in the first place so they probably don't have too much money to dish out. And I'm assuming most of the traffic will be younger kids looking for all these cheats, etc. However, we can worry about that later - the aim right now is to try and build up a list for each app or site we have. A healthy, sizeable list never hurts
CURRENTLY: