We tried this app out, at our last #PurpleKonnektiv meetup. This is such a really useful concept.
Meetups are a great place to use Bitcoin because you often end up with group billing situations. One person can cover the bill in fiat, take a picture of the receipt, and then send everyone a link. They can then zap him their portion.
This is the sort of practical app that creates little, impromptu Bitcoin onramps and offramps.
Bullish! 🚀