Apple has just pushed out a press release, announcing that in the first day of the Mac App Store over a million apps have been downloaded. It's a pretty impressive showing for launch day, and we're proud to have our three apps available at launch!

If you've not yet had a chance to check out the apps on the App Store, then why not take a look at RapidWeaver, LittleSnapper and Courier now?

After the launch yesterday, Mac developers everywhere have had a number of frequently asked questions - particularly as the Mac App Store currently implies that already-installed applications can be updated via the Mac App Store, which actually isn't the case. A full list of FAQs are available here however here's a quick run down of the most-common questions!

The App Store shows an app as already "Installed"

The "Installed" button appears because the Mac App store is identifying applications that have the same internal application identifier on both the Mac App Store and from the developer's own store. As such, it's more a bug on Apple's side than a confirmation that you can update your copy of the apps from within the App Store. You can only update applications purchased via the Mac App Store using the Mac App Store

Can I easily move my Realmac-bought copy of an app to the Mac App Store?

Unfortunately not. The App Store has no way to migrate existing users to the Mac App Store purchase history (and uses an entirely different, Apple-specific, way of securing purchases). If you're a Courier user, we're actually offering a promotion to move customers across to the Mac App Store at no charge as Courier will no longer be distributed outside the App Store. This previous blog post details how to sort a Courier App Store migration!

As always, if you've got any questions please drop by the Realmac help desk and we'll be happy to answer them!