App Store ratings with a free plus in app purchase app

As predicted yesterday, the overall rating has already declined by a
half star. Someone gave it a five-star. More importantly though,
Homebuy has made an appearance on the Top 100 Free Finance chart. In
fact, it's been climbing the free chart since I first noticed it there
yesterday, surpassing apps developed by Fortune 500 companies.

As an aside, if rate-on-delete exists, there should be a heuristic
rate-on-third-use-in-a-day feature. If someone opens an app a few
times in a day, prompt them to rate it. This might balance the