why pay for Pro version for iPad?

The only advantage of the purchased upgrade to the Pro version for ones iPad is elimination of the advertisement band. The only reason I made the purchase was to get the flash light function. At my age, magnification and more light are essential for legibility, anywhere. What hope I had for this app demonstrated to me on an iPhone! Where was it made clear that there is no flashlight function for the iPad? Nowhere. Unkind business.

Ecoeure about Magnifying Glass w/ Light Pro, v3.4