Photograph the receipt, tap who had what, and everyone gets texted their share. Your friends never install anything.
Every line item shows up priced and ready to hand out. PDFs and typed-in bills work too.
Pancakes to Sam, salad to Priya, garlic knots split four ways. Tax and tip divide by what each person actually ordered.
Friends see their share and what it was for. If something looks off, they reply to the text and the split updates.
Between bills
cofundo keeps a running tab per friend, so a $6 coffee can ride along until it's worth settling up. When someone's tab gets big, it nudges them for you.