We use apps and then we will forget that M = wL^2/8 and M = PL/4, etc. as some has forgotten how to do moment distribution. I see many engineers reach to their computers to run a simple span beam with single load or uniformly distributed load. What shall we do when the computers crash? I am glad I kept my slide rule!
You know what I think is better, write your own application in a spreadsheet or VB.
Please forgive my sarcasm.
Regards,
Lutfi