There are not many options. From the few options available, there is Tydlig that we are looking at today. The first question that came to mind was why the difficult name? A quick google search Cleared that up, Tydlig is the Swedish word for Clear.
First ImpressionsWhen you start the app up for the first time, you are greeted with a screen full of equations, this could be a bit confusing as to why do I have someone's work when I start the app for the first time. However those are like a Tutorial, where you can see how Tydlig works. It has a minimal iOS7 look and feel, the icons are thin outline icons and so are the font. This can be fixed via settings to select a larger and thicker font.
Some bits - unclearThe way it works is wonderful, simply type 50 - 10% = and you will promptly get the answer 45. However if you want to tweak and find out what % of 50 is 40, although there is a token "?" which I presume is used for an unknown value. So I could not get that to work backwards.
Some GemsOne of the good things is that you can long press a numeric token to select displaying a slider. So you can slide the slider to change the value of that number and the best part is that the ranges can be altered by simply tapping the min or the max range and typing the new range.
SUMMARY Software : TYDLIG Version : 1.2.1 Publisher : Andreas Karlsson Website : tydligapp.com Twitter : @tydligapp Platform : iOS (iOS 7 or higher) Price : $4.99 App Store : https://itunes.apple.com/app/tydlig-calculator-reimagined/id721606556?mt=8 You could Follow us on Facebook by liking our page at http://www.facebook.com/pages/ReviewMe/137640632964588 or Follow us on Twitter at @whatsin4me