Was already on an iPad Air 2 a friend of mine gave me & I have not had any problems using it. I find it easier to use than the supplied calculator app on my Samsung Galaxy Note 8 (Android) phone.
If you want a hassle free, ad free, straight up calculator this is a fine app. Easy to see, easy to use, just like an old fashioned physical pocket or desk calculator if anyone is old enough to remember using them! I use it primarily to check pricing - converting price per oz, for example, to compare pricing, especially useful when shopping on Amazon. Not only does Amazon love to confuse matters by listing similar items by different units of measure, each, per oz or lb or kg, they also put wrong info out stating a price per oz being X when if you use this calculator to do the math, you’ll often find it’s actually Y. (I discovered this by seeing per oz prices that were so blatantly obviously wrong I could tell just by looking it wasn’t right & then used this calculator to confirm my suspicions to find I was correct. And, this was not a 1 time thing either, it’s happened multiple times with a variety of products on Amazon, so if you buy from them, you’ll definitely want a good calculator app like this one!)
Bottom line is this is a great basic calculator worth it’s weight in gold (well, I guess that really is a non applicable phrase, but you get my meaning, right?)!
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