Easy to use and no annoying ads! I have very low vision and this has been the simplest, no-frills APP I've found. I use it daily and love the freeze (temp photo) function. The only knock I have is that it uses a lot of juice to the point that my phones get hot (Sansung S5 & J7) especially if I forget to close the APP after use...otherwise I'd give it 5 stars.
visor - low vision magnifier at Google Play market analyse