[tinylittlefish]

I'm also not convinced this is unethical. I think the Appsfire example could be unethical, IF it tried to trick users into thinking they were leaving a review in the App Store, when in fact that were not.

However, after reading the blog post, I installed the Appsfire app to see how it worked. In the interface, the link that brings up the feedback page is labeled Send Us Feedback. I think that's clear enough that it's sending feedback to the developer.

In some cases, negative feedback can be resolved if the developer knows about it. The important thing to the user is that their voice is heard.

So I don't think Appsfire is tricking people. Subsequently asking people who like the app to review it doesn't seem unethical to me. For example, I often get e-mails from people telling me they love my app, and I suggest to them they leave a review in the App Store. I don't think that's unethical.