I've gone through the not at all an "app" a few times now. Here's what immediately sprang to mind:
In the initial questions, I said I was a father suffering from DV. It primarily pointed me to the National Domestic Violence Helpline, an organisation that resolutely only talks to women, not men. Thanks for not caring that you're directing people to organisations that will refuse to help them, DWP!
I then tried again leaving out the DV but otherwise based on my circumstances at the time of separation from my ex. In the "app" there seems to be an implicit assumption that as I'm a father, I'd be the one paying child maintenance. Eg the links to pages on dad.info and separateddads.co.uk for information regarding the CSA are written from the point of view of a male NRP paying maintenance. Thanks for the prejudice, DWP!
I then tried again, this time acting as a woman rather than a man but otherwise with exactly the same responses. The difference in links provided was curious. Many more links to Gingerbread as a woman than as a man (why? Gingerbread supports both male and female lone parents), plus links to the (excellent) resources on the websites of Resolution and the Centre for Separated Families, none of which I saw when I represented myself as a man when instead I was pretty much exclusively linked to dad.info or FNF. Why the disparity?
Also I note that responding as a woman, I was presented with links to mumsnet's own page on mediation. As a man, I wasn't (even though the page itself, and the information it links to, is very good, non-gender specific and produced in conjunction with dad.info). Thanks for the sexism, DWP!
In short, the results seem curiously biassed depending on whether the user is a man or a woman. Why is that?
Finally, you could replace the entire "app" with a big link to Gingerbread and/or the Centre for Separated Familes and have done with it. It would be a lot cheaper and much more effective. You could then give the money you save to charity.