Pros

• Excellent for quick, rough estimates for square footage.
• Accurate for mapping
• Easy to use

Cons

• There is no option on possibly calibrate to sharpen accuracy.
• offers no ability to edit the rendering (other than squaring off) after measuring

So far, this app received mixed feedback , some would recommend it and other had stated that it goes to be inaccurate in its measurement with no edit option. But it's your choice choose to buy this or not