I understand you made the app because of your own needs as a someone in a co parenting situation, but you’d have a lot more luck by removing that from your pitch. I see on your website you’ve mentioned friends or roommates which is a much bigger market.
The service itself sounds very useful, Splitwise is good but requires all parties to use and respect the app
We have been using splitwise https://www.splitwise.com/ for a better part of the decade to split costs. It’s also very useful when planning trips or group activities as it allows custom splits. Their phone app is extremely smooth too
I agree with the other comment, you should not pitch this, at least not with that enthusiastic tone. It carries an unintended message that you see the child as a burden rather than the most precious thing in your life.
The service itself sounds very useful, Splitwise is good but requires all parties to use and respect the app