sqft AR is a free iPhone app developed by Noriaki Murao in the Utilities & Tools category. This app offers five core features to help users measure and check sizes using augmented reality.

Firstly, the "Area - Floor" feature allows users to measure the horizontal area on a floor in either square feet (ft²) or square meters (m²). Similarly, the "Area - Wall" feature enables users to measure the vertical area on a wall.

The "Length" feature allows users to measure the length between two points by simply placing a pointer on the starting and ending points of the object being measured.

The "Furniture" feature provides users with standard-sized virtual furniture to help them measure the relative size of a space. Users can place virtual furniture on a flat surface and even rotate or move them as needed.

Lastly, the "Size Checker" feature allows users to check the relative size of a product in the real world by comparing it to other objects. Users can input the width, depth, and height of the product and place an AR box to see if it fits the space.

With sqft AR's intuitive interface and easy-to-follow instructions, users can accurately measure and check sizes using augmented reality technology.