MCS.Fitting app for iPhone and iPad

" MCS.Fitting" is a Calculations app for pipefitter
Within a few seconds all the necessary calculations to produce the desired pipe Offset performed.
With predefined list - ANSI (to 20") & DN (to DN 500) or manually input.
Elbows Radius DN Elbows BA3-BA2-BA5.
ANSI Elbows long-short-3d Radius.
Calculations include:
-Fitting to Fitting Offset With 90 Degree and Mitered Fitting
-Fitting to Fitting Offset 2 Mitered Fitting
-Offset With Tee and Mitered Fitting
-Any Degree of Offset
-Offset With 90 Degree Elbow and Mitered Fitting
-Inside and Outside Measurements to miter a fitting
-Offset With 2 Mitered Fitting
-Rolling Offset With Mitered Fittings
-Rolling Offset With 90 Degree Elbow
-Rolling Offset With Any Degree
-Rolling Offset Horizontal to Vertical
-Rolling Offset Horizontal to Horizontal
-Rolling Offset with 2 Mitered Fitting
-Rolling Offset
-Any Degree of Offset with 90° Elbow
-Any Degree of Offset with Tee
-Weight & Content
-Flanges & Bolts
-Overall Length
-Measure Angles
-Spreading Offsets Equally
-Create your own list
-Select background color
I would appreciate any feedback! Thank you in advance.