Please visit the developer's web page link below for a detailed tutorial with pictures.
Ready to purchase a house but you are not sure whether the sqft they told you is correct? Need to find how much concrete needed for a yard? Square Footage Master is a must-have app for realtors, house buyers, renters, and contractors who want to find out houses, yard or office square footage (or square meters). You can get an accurate result without using any other tools. No tape ruler? No problem. The app comes with a camera ruler (as the one in the Advanced Ruler Pro app) and a body ruler that are very easy to use. It will also save the sqft result to the memory card or you can send it to yourself or someone else by email.
Email firstname.lastname@example.org if you need help or have suggestions.
1. The app need internet access and coarse location permission for for market licensing, flurry tracking and bug report.2. The camera permission is for the camera ruler.3. The camera ruler in this app is the same as the distance ruler in Advanced Ruler Pro app except Advanced Ruler Pro also has a camera height ruler and a camera length ruler.