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Protect your skin with this Coppertone iPhone app; it shows the intensity of the daily UV rays in your jog zone, so you'll know when to be extra diligent about SPF.
Test nail polish shades using your iPhone by customizing the on-screen hand to your skin tone and sampling more than 200 hues.
Take the "Huh?" out of creating smoky eyes or choosing the right lipstick. This Android app is chock-full of how-to tutorials and insider secrets.
Originally published in FITNESS magazine, October 2010.