​Zeffy provides its payment and fundraising platform completely free to Rhythm & Relief Inc., with no platform or transaction fees deducted from the payments we receive. To make this possible, Zeffy gives supporters the option to leave a voluntary tip to help cover its operating and payment-processing costs. The tip goes directly to Zeffy, not to Rhythm & Relief Inc., and is entirely optional. Whether you leave a tip or not, Rhythm & Relief Inc. receives 100% of your intended payment or donation.