[AnemicOak]

The approval process is possibly slightly longer, but not a lot. Calibre Companion manages to get updated fine and fairly quickly when they send an update, but they don't always send an update to Amazon. I have games that are both in Google Play and Amazon and both manage to get updated within days of each other. I think it's just that the revenue many devs are getting from Amazon's store is so much lower than Google Play (especially if the app is "incompatible" with the Fire) that they often don't bother to deal with updating the app each time. Moon+ is up to date on both, Aldiko is up to date on both, Overdrive is up to date on both. Mantano isn't and pretty much never is. Seems to me it's a problem with the dev if other similar apps can be kept up to date. CC isn't up to date on Amazon (updated today on Play), but Chaley has said it should be early in the week.