I haven't heard of them - looks like they're a wallet that automatically conducts pre-authorized transactions. Pretty cool. Biggest limitation I see is that they only support splitting transactions from select vendors.

I think it would be cool if they allowed you to split anything - but I guess the problem is coming up with a viable business model. If you use something like Stripe to facilitate transactions, the added fee can be pretty deterring to potential users. I'm not sure what would be the best business model for an idea like this, apart from maybe a subscription more & betting on users not actively using the product?