I have an idea for an app but for it to work it would have to know when the owners vehicle was on and off. Obviously this would only work with newer cars but I didn't know if it was possible to create such of an app with sync capabilities.
Thanks
Added (1). P.S if it is possible does anyone know how/a website telling how to build such of an app? I've had no luck myself but don't know exactly what I am looking for.
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Is it possible to write an iphone app that syncs to vehicles?