After extensive research ....

After extensive research Ive come the conclusion that I just cant find a App or Web App that seems right for my GTD.
I think I know how I want it to look and work but cant seem to tally that up to an App. Ive used Moleskines for years and even before that a Filofax but now I want App but Im struggling.
I know that on the front page of the App I want a 'Next Action' box that lists the next 1 or 2 items, in each Project, that needs to be done to move a Project along (also that it can be listed in either project or context view). I know Id like a project,action and context screen/page and obviously some archive and review screens for those tasks not completed etc.
Ive trawled around and tested various Apps but I cant escape the feeling Im missing something.
Im not up to building it myself, mores the pity, but if anyone was in the same postion as me and has found a way through , I ask politely can you give me a pointer?
Thanks so much for reading, I hope Im not being a bore and some of you will take me under your wing and help.