If the update is not shown on this list, search for the app manually and click on the Update icon from the app page. On Kindle devices you can open the Appstore and choose App Updates from the menu on the top left corner. On Android devices you can open the Settings, go to Apps and locate Google Play Store and Google Play services from the list, and from their Storage menu select Clear cache. On new iOS versions you can open the App Store, click on your profile button at the top right and then pull the screen down until you get the update spinner at the top. On older iOS versions you can open the App Store and click on the updates tab until it forces an update. On mobile however the gifting is not working due to the same issue. Due to this issue the game cannot be played on PC, but it does work on mobile. We have reported the issue to them and are waiting for a fix. If the store is not correctly showing the available updates, there are some things you can try. It seems that something is broken on Facebook.

Angry birds friends is not working