The light is simple and functional. There are other apps that activate the light when you shake the iPhone which would be a good feature when you are fumbling for your keys in the dark.
Magnifying glass does not focus well and isnt practically useful to read small print. The mirror is fine but again some zoom or focus control would help.
In summary it does what the description says, but just barely. I will try a few other similar apps.
cbeak about 3 in 1 Multi-Tool with Flashlight, Mirror, and Magnifying Glass