Q: Can't update my iPhoto and iMovie! Always pop up a window says "you have updates available for other accounts; To update this application, sign in to the account you used to purchase it."

I've seen this behavior before when you've changed your account id in the app-store.  You started with one app-id and switched to another, but had purchased/install apps under the old one.  Also, if your machine has multiple users on it, were the apps purchased under one of the other user ids?

I have the same issue.  I just purchased a new Macbook Air and used the free Mountail Lion upgrade.  I've only had one Apple account.

App Store uses Spotlight to locate applications. You only need to re-index your drive for App Store to recognize your account.

Go to Sys Prefs > Spotlight and drag your drive into the Privacy pane (or if it's already in the Privacy pane, select it)  and then click the minus sign to remove it.

Spotlight indexes applications quickly, so you won't have to wait until your entire drive is indexed before going back to the app Store to download your updates.

Tuttle,

I followed your directions, and Spotlight indexed the drive again.  Unfortunately, it did not make a difference.  I am still seeing the message above.

That's the only solution I know...

http://support.apple.com/kb/TS4236

I just put my HD in the privacy pane of Spotlight, restarted the computer, and removed it from the privacy pane.  When I search for updates, the updates do not appear.  I opened iPhoto and the version is 9.3 (the one in the screenshot above is 9.0.7).  Apparently, the update software thinks that the programs weren't updated until after the computer was restarted.  Whatever the case, I have an up-to-date version of the program.

Thanks Balll633 for the tips about the Spotlight, but I tried it and it still won't update.  The iPhoto is 9.3 to begin with but the version to be updated is actually 9.3.2.  I've tried logging into all my known accounts to update but no luck.  I am wondering whether it has anything to do with the fact that my Mountain Lion was redeemed and not bought?

I'm still having the same problem.  What I thought fixed the problem just made the update go away for a while.  I redeemed Mountain Lion, too.

Same problem here. re-indexing spotlight only makes the red "2" in the Mac App Store dock icon go away for a while. You still need to connect using some imaginary Apple ID to be able to update iPhoto to 9.3.2 and IMovie to 9.0.7.

I have the same issue. I can't update to 9.3.2 from 9.3.1 buy downloading the updater from Apple because it tells me I have to do it through the Mac App Store. When I log into the Mac App store it doesn't appear under updates. It's suppose to at least show up in updates even if it uses a different account. In a corporate environment the App Store is the worst idea that Apple ever came up with.

I had this issue too after installing Mountain Lion (like others in the thread, I also just have one account/ID). The Spotlight fix didn't work. I ended up uninstalling iPhoto and iMovie and purchasing them from the App Store, hoping I'd be able to claim a refund later. It got rid of the update messages fine, but it's harder than I expected to find somewhere to ask for a refund. I can't enter a Taiwan number to call on the support site.

This is my first Mac - what with this and the ML battery bug, things aren't going as smoothly as I expected.

What solved it for me was emailing the app store support team. They ended up moving my case to a supervisor who emailed me redeem codes for those two apps.

Hang in there, most of my Apple experiences have been very positive and I've been doing this since 1985.