Quote:
Originally Posted by Baer383
I don't know exactly right before you ck it against the straight edge there is a calibration button on it you push it and then check it.
On the app they claim it is for fun but the payed version (about 2 bucks)they claim it very accurate but no numbers were given.
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hm, don't know how much I'd rely on that. I'd presume it uses the accelerometer--which is not even accurate within 1*