Use UnMooch to easily split the cost of a carpool. After you complete a trip, UnMooch will take the miles to generate a dollar amount you can request from friends. Just select the trip you want to split, and adjust the price per mile you want to charge. UnMooch uses Venmo, a payments processor, to send the request for money to your friends via their Venmo account or phone number. Venmo makes it easy to share expenses between friends, transfer money without fees, and make requests via text message. You can access the UnMooch web app from anywhere.