https://github.com/hbcondo/revenut-app
I built this web + mobile app (PWA) written in React Native + TypeScript that does simple revenue forecasting for a SaaS that uses Stripe.
Stripe's mobile app and others kinda do this already but some of their numbers can be inaccurate (as detailed in the repo's readme) so that made me open-source + solve an issue my own SaaS[1] has with Stripe.
As mentioned in the challenge section, getting data from Stripe is slow so I've been reluctant to put this app in front of others even though it is fully functional.
I actually shared this on a similar HN thread not too long ago[2]