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I recently found my old iPhone 3G with iOS version 3.1.2. I'm planning to let my 4-year old nephew to use it. But then, I'm having a problem on installing apps like Facebook, Twitter, Instagram, etc. because these apps only support iOS 5.0 or later.

How can I install the apps I mentioned?

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Um - hopefully there will be some apps that work for a 4 year old - but luckily the downside of them not having their Facebook and Instagram fix will be bearable. I applaud the re-use of an old device but chuckle with the examples chosen :/ –  bmike Nov 19 '12 at 17:40
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3 Answers

up vote 4 down vote accepted

Note: This answer is no longer valid.

(See @stuffe's answer on how to install apps onto old versions of iOS)


The short answer is there is no way to install an app that was created for an iOS newer then the one you are running. You should connect the device to iTunes and see if you can get it updated to the latest 4.x iOS as many games and apps that target the 4 to 8 year old demographics will certainly work on that older OS.


The longer answer (and some related discussion on this site) is that developers of more powerful apps want to use the latest APIs that are introduced every iOS, and for a developer to create an app for an older iOS version, would mean he couldn't use the newer tools. Worse, it's more work to keep using the older API so cutting them makes schedule and financial sense. For example, a resource known as ARC (Automatic Resource Counting) has made a huge difference in reducing the time and cost of app development by automatically doing things that otherwise the developer would have had to manage.

Because these necessary APIs don't exist on pervious iOS versions, there is no way to run a newer app on an older iOS. Hopefully you can use the web versions or find acceptable apps to do the things you need this device to do to continue to be of use.

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Whilst this answer was true when it was answered, it is now actually possible to download the most recent version that is compatible with your device (assuming one exists). I have made a new answer as such. –  stuffe Sep 17 '13 at 12:25
    
Thank you for pointing that out and your answer. That is excellent that Apple has fixed that problem. –  bassplayer7 Sep 17 '13 at 13:53
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As of the time this question and most of the answers was posted, it was not possible, however it is now possible to do this on an iPhone 3g running iOS 4.2.1 though not iOS 3.1.2. Simply try to download any app, and if the current version is not compatible with your device or OS, and a suitable older version existed at some point in the past that was compatible, if will offer to let you download that most recent compatible version instead.

enter image description here

Owners of iPad 1s and 3G/3GS devices or older iPods rejoice!

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Now, suppose I download an app to iTunes, then try to sync it to a device that is too old... Is it too much to hope that I will then be given the option of an older version? –  GEdgar Sep 17 '13 at 18:28
    
No idea, and can't test, as everything I have to test on is already iOS6...give it a whirl and update my answer if it works –  stuffe Sep 17 '13 at 18:36
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In general, you can't.

Apple hase changed their most current releases of their iPhone development tools so that the minimum Deployment Target is iOS 4.3. Thus, any apps built with the current version of Xcode will not run on devices running older OS versions. Any developer who wants their apps to look good, or use the latest features on the latest devices (iPhone 5, etc.), can no longer submit apps or updates compatible with iOS 3.x. So a vast percentage of apps updated since Sept. 2012 are no longer compatible with an iPhone 3G, since a 3G can not be upgraded to iOS 4.3.

The iTunes App store only offers downloads of the latest version of an app from the App store, so older versions are no longer available (except to customers who have previously downloaded these old versions and made backups in case iTunes tries to trash these working versions.)

A few developers still use older development tools; and some apps have not been updated recently. Those fewer apps are the apps suitable for you device. But they may or may not be the ones you want.

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I'm surprised more 3G users haven't complained to Apple about removing support for making apps compatible with their iPhones. –  hotpaw2 Nov 19 '12 at 17:37
    
I share the OP's pain. Not making older versions of apps available and making it impossible to copy other copies due to signing is deliberately cutting off support for older devices to prompt users to upgrade and to make jailbreaks less attractive. I deicided to migrate away from Apple a long time ago due to their cynical treatment of iphone 3g customers and I'm not going back. This just confirms I made the right decision. –  persiflage Jul 6 '13 at 10:28
    
@persiflage If you have a 3G, you can now download the most recent compatible version of an app should one exist. –  stuffe Sep 17 '13 at 12:30
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protected by Community May 13 '13 at 16:15

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