iOS app update notification

Question

How does the iOS app update mechanism work? How to tell user that application on Appstore has been updated?Do i have to write the functionality in the code to show the update popover or is it handled by Appstore to show notification to user that app has been updated. Is there any documentation provided by apple for this?

Answer 1

You can use Harpy : this module trigger a UIAlertView when a new version of your app is available on the App Store.

Harpy is now depricated.Siren was ported from Harpy, as Siren and Harpy are maintained by the same developer. As of December 2018, Harpy has been deprecated in favor of Siren.

Answer 2

1. Apple provide exist api to get latest app information on Appstore: http://itunes.apple.com/jp/lookup/?id=app_id

Ex: http://itunes.apple.com/jp/lookup/?id=1005582646

In response of this api have version field(This is version number of latest build on AppStore)

In AppDelegate->didFinishLaunchingWithOptions, you can call above api.

2. The way to get current version on user's device:

   NSString* currentAppVersion = [[[NSBundle mainBundle]
   infoDictionary] objectForKey:@"CFBundleShortVersionString"];
   

Now you can compare version number from 1 and 2 to show alert or notification to user when have updated app on AppStore