One of the new features in iOS 10.3 is tethered-caching. The tether is between your Mac and i-devices, via the Lightning to USB connection. The Cache is the Content that your Mac can now Serve up to your i-devices. The tethered-caching service enables some highly useful features:
Note for this to work you’ll need the Mac and iPhone/Pad updated to latest OS.
Here’s how to get started:
1. Connect i-device to Mac via Lightning to USB cable.
2.On your Mac Navigate to: Finder–>Computer–>Right Click Computer–>Click Get Info
3. On the menu that comes up you should see a list of files similar to those listed here:
The first folder we’ll look at is Music Creation where all GarageBand downloadable content is stored. Since this is a native feature as of 10.3 GarageBand on iOS should be able to open any of this content – it’s effectively a built in GarageBand Server – so you don’t have to save the content on the iPad. As you can see mine is empty, as I don’t have GB on my Mac. Hopefully someone will test this to confirm, and let us know what all can/can’t be saved here.
You’ll also notice another folder iTunes (shown in below image)- which I notice has all .ipas of apps I’ve installed since updating to iOS 10.3. I’m guessing that if you delete an app you installed prior to the iOS 10.3 update – then reinstall it, the ipa will cache to the tetherator (and no, that’s not a made-up word!), and then be available for the service. Cached apps can be installed, and just like with the GB content, installation can be done while offline, and after the initial app download, the cached version can be used to install to your other devices, without needing to contact the Apple Store, and as such installation time is dramatically faster
Device Backups and iOS Installers
Both the iTunes and iOS Files are useful additions to the tethered-caching service – Again, If you happen to have a family of i-devices you can now download an app, or ios update installer once – then the rest of the devices you have will update from this file. Additionally, you can update, restore a backup, or install apps while offline, which is nice if and when needed.
iOS Files – Tethered-Caching Menu
Photo & Video Management
Clicking the Photos tab instantly displays all the photos and Videos on the iPad – you can add/delete etc your photos and videos from here – VERY fast! I was surprised at how fast this worked, and while there’s no need for further explanation here – this will probably be my most utilized feature.
I think the addition of tethered-caching is a great move by Apple, and seems in line with similar moves like the recent acquisition of WorkFlow, ongoing Siri integration, the new Ethernet enumeration for iOS, and the new iOS Apple ID screen in Settings. I’d of course love to see tethered-caching services extended to non-Apple devices. For music producers, being able to exchange files in this manner would be a boon to sample storage and access, and sharing files between apps that have a desktop version like Algoriddimm’s DJ Pro or Dhalang MG.
This is about the only link I’ve seen about tethered-caching from Apple, and it’s specific to Mac OS Server functionality, which I believe is has been effectively mirrored to a native Mac/iOS service now, so should be the same: https://support.apple.com/en-us/HT204675. **Edit – Thanks @tadpool for providing link to Apple release detailing tethered-caching: https://support.apple.com/en-us/HT207523.