What is your favorite App for iphone/ipad for use in the field?
Curious as to what iphone/ipad applications people are using in the field. There seems to be quite a few reference apps available. Calculating duct sizes, PT charts, air velocity calculators, heat load calculators and many more.
What app do you find helpful? What app would you recommend every technician or sales person have on their mobile device?
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"Don't argue with an idiot, they will drag you down to their level and beat you with experience". --Mark Twain