Lupa is a nice, free iPhone program. It makes part of the category 'Utilities & Tools' .
More about Lupa
Since we added this program to our catalog in 2012, it has obtained 4,555 downloads.
The program version is 3.6.2 and was updated on 03/12/2015. This software is available for users with the operating system iOS 6.0 and posterior versions, and you can download it in English, Spanish, and German.