Tirecheck is a new app the iphone that uses your phone camera to check your tire pressure. Just put in your make and model, then snap a quick picture of your tires. The app will tell you if your tire pressure is low and how much money you could save by inflating your tires. It is an interesting concept and the company claims it is accurate within 2 psi; however, I would recommend keeps a tire pressure gauge anyway. The app struggles with overinflated tires. Overall, the concept is promising, but too new to be trusted alone.
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