This is an update, after 16 months of using this: EyeReader is a godsend!. I normally use bifocals (Im 64), and I just tried another magnifier app--and I am even more impressed with EyeReader!
I have purchased several magnifier apps, and I like a couple of them, but EyeReader works the best and is the simplest to use. If you cant see close up, you cant see little controls, so simple is best, AND it still has all the bells and whistles: theyre just hidden a little bit so you dont have to deal with them if you dont want to (or cant remember how to at that moment in the restaurant). The Help button is a very obvious (?) button, allowing access to instructions (for light off and on, taking a photo of the magnified object, and zooming). and zooming is the normal iPhone pinch/expand gesture that we all expect and do instinctively. Very Elegant and "Simple" in a good way. I read the complaint about having to shake the iPhone to turn the light on and off, but I have found (in testing several magnifier apps) that I always want the light ON for best image clarity, so it is not a big deal for me. I find this is a really good app that seems to take into account the needs and experience of the users. Really a Very Good Job! (Extra Bonus: If you have the light on, and take a picture of a pill bottle, you have clear, magnified photo of the label in your camera roll with a prescription number you can actually read when you call the pharmacy for a refill: VERY USEFUL !!)
alwaysmprest about EyeReader