Time Out editions
Dejal Time Out is available both directly from the Dejal web site and from the Mac App Store
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Which edition you choose is up to you; the features are basically the same for both.
The direct edition can be downloaded from the Time Out website, and updated from within the app. If you choose to become a supporter, payment is handled either via an in-app purchase powered by FastSpring, or the Dejal Store online.
The Mac App Store edition can be downloaded and updated from the Mac App Store, of course. The optional supporter payment is handled via your Apple ID with an in-app purchase.