Whrrl
LOVE the photo-sharing and tip-leaving with this app. I think the “societies” part of this one makes it a bit more interesting – and more social – than some of the other ones.
CheckPoints #1 Rewards App And Free Barcode Scanner
Like the rest of these, but with corporate sponsorship – Checkins get you points which you can then swap for merchandise at select retail stores.
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Brightkite
Pretty sure this one was the first to market – photos and location-based checkins. They’re rolling out all kinds of new features to stay up-to-date and ahead.
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