I've been working on a tool that allows you to upload your financial reports from Apple/Google and track your real earnings, split by subscription products.

I developed it because I need to allocate specific amounts to a developer API, and thought it might be helpful for others as well.

It currently only fits my needs, but just contact me if you would use it but it's missing something! Also, you can check out the demo access on the page to see how it works.