[pc86]

> And I knew that because there were crappy Spanish Bible apps already making money in the App Store.

How did you know that? Just judging by the reviews or did you actually buy some to try them out?

[trevmckendrick]

All of the above. I bought quite a few of them.

It doesn't take too long to get a feel for how good an app is.

[trevorcreech]

But how did you know they were making money?

[monkey_slap]

AppAnnie (http://www.appannie.com/) gives some good insight in how well apps are doing.

[trevmckendrick]

Gross rank for apps reveals a lot. Any top 25 app by gross rank is doing well by "niche" standards.

[pc86]

Doesn't Apple only let those who have purchased write a review? If so, the gross number of reviews may give some idea of how many have purchased the app (ignoring price fluctuations, etc)

[trevmckendrick]

Some developers have told me this is a good rule of thumb, but for others it's way off. Mine # of reviews is not really indicative of how many downloads.

[callmeed]

From what I've read it's:

(# reviews * 30)

[GotAnyMegadeth]

My apps are more like (n * 100). But that is on Android...