App version IOS 7 & IOS 9

Question

I have developped an Iphone app with Swift 2 which I have recently migrated to Swift 3. The Swift 2 version was compatible from IOS 7.0, while the new version developped with Swift 3 is compatible from IOS 9.0

Can we have both versions (the one developped with Swift 2 and Swift 3) operative (live together) in the APP store?

This way, anybody with IOS 7.0 & IOS 8.0 can use the old application, while people who have IOS 9 & IOS 10 can use the new aplication.

Can both applications live together? How?

Answer 1

Go to itunesconnect, go to your app, go to the App Store tab, and click Pricing & Availability. At the bottom is a section that says Last-Compatible Version Setting. Click the 'available versions' link and you'll be taken to a page where you can control which versions are available to people with older iOS versions, etc. In other words, you can have both versions available. You'll have your "main" one, which will be the most recent, but people with older phones can still download your old iOS 7.0 version.

Answer 2

Swift 3 can be used for iOS 8 and later. You can't support iOS 7 with an app built with Swift 3.

There is little reason for you to keep supporting iOS 7. Just put out an app update with support for iOS 8 and later and the few existing users on iOS 7 can keep using the old version of your app.

There is no way to have two versions of your app in the App Store. You could keep the old Swift 2.3 version in the store and post the new Swift 3 version as a new app. But none of your existing users would know to download and install the new app.