I need to upgrade to Maverick but my OS is too old (snow leopard)

If your computer is an early Intel-based MacBook, it may be too old to upgrade

to OS X 10.9.4 Mavericks; however it may be able to use OS X 10.7.5 Lion.

http://www.apple.com/support/lion/

Since you do not state any specifications of the computer, its build model identifier

or other information, the topic is rather wide open. If your computer could support

the upgrade to Mavericks OS X 10.9.4, the Mac App Store accessed Snow Leopard

OS X 10.6.8 should allow you to check into that store for upgrade possibilities. Or

other possibilities such as Lion should appear in the store, for older intel-macs.

•How to identify MacBook models

•OS X Upgrade to Mavericks - Apple Support:

http://www.apple.com/support/osx/upgrade/

Lion 10.7.5 requires a purchase code to download and install it; however 10.6.8

has to be installed & running in its final version to access the Mac App Store, etc.

See the first link for some info about that aspect; the newest iPhone and other

iDevices won't connect to a vintage OS X, or other devices may be limited if they

shipped with or were upgraded to a later iOS that won't sync with Lion 10.7.5.

There are several details and the information can be conditional.

Good luck & happy computing! 🙂

You should be able to sync your iPhone using v10.6.8.

See: Tech Specs here > iPhone 5s - Buy iPhone 5s in 16GB, 32GB, or 64GB - Apple Store (U.S.)

• Apple ID (required for some features)
• Internet access9
• Syncing with iTunes on a Mac or PC requires:
• Mac: OS X v10.6.8 or later

Make sure your OS X software is up to date.

Click the Apple  top left in your screen.

From the drop down menu click: Software Update