OneCause charges $2,995 a year, or 5% of funds raised on pay-as-you-go. Blackbaud publishes no software pricing and quotes per organization. Both take a cut of what you raise; Zeffy takes none.
Zeffy is trusted by 100,000+ nonprofits

OneCause VS Blackbaud

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OneCause takes 5% of funds raised on pay-as-you-go, and Blackbaud's published Tier 1 card processing is 2.99% + $0.30. Zeffy covers all fees, so 100% of your raffle proceeds go to your mission.
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OneCause sells event packages from $2,995 a year, and Blackbaud quotes its software per organization rather than publishing a price. Zeffy gives you raffles, auctions, donations, and CRM with zero fees and free help for everyone.
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OneCause is built for big galas, Blackbaud for hospitals with IT teams. Zeffy handles raffles, 50/50s, silent auctions, ticketing, and donor management in one simple platform you can launch today.
Both sell it, but they come at it from opposite ends. OneCause builds peer-to-peer around events and campaigns: runs, walks and rides, DIY supporter-driven pages, ambassador fundraising, and tributes and memorials. Blackbaud sells peer-to-peer as one module inside an enterprise suite built around its fundraising CRM. In practice, pick OneCause if the campaign itself is the product you need, and Blackbaud if its CRM is already your system of record. Zeffy includes peer-to-peer fundraising at no cost, with no module to add on.
OneCause is the one you can price without a sales call. It publishes a $2,995 Professional Auction & Event package, or a pay-as-you-go option starting at $200 with a 5% pay-later fee on funds raised that it says it caps. Blackbaud publishes no pricing at all and quotes per organization, sized by records and users; eTapestry is the product it points small and growing nonprofits toward. For an organization running one gala a year, that difference in transparency usually decides it. Zeffy is $0 with nothing to quote.
They are not really the same category. OneCause is event and auction fundraising software — mobile bidding, ticketing, golf events, donation forms, Text2Give and peer-to-peer. Blackbaud is an enterprise nonprofit suite of more than thirty products spanning fundraising CRM, finance, grantmaking and education. Plenty of organizations run one of each, with Blackbaud as the database and OneCause as the gala tool. Zeffy is the option where donations, ticketing, auctions, memberships and donor management sit in one place for free.
Blackbaud, clearly. Donor management is its core business, through Blackbaud Enterprise Fundraising CRM for large organizations and Blackbaud eTapestry for smaller ones. OneCause's published product list does not include a donor CRM, so nonprofits using it generally push event data into a separate database afterwards. The cost is the second system and the sync between them. Zeffy includes donor management in the same free platform as the fundraising tools, so there is nothing to sync.
Neither, if you mean tracking grants your nonprofit applies for and receives. OneCause does not list any grant product. Blackbaud Grantmaking exists, but its own product page describes it as "grant management for funders" and software "built for grantmakers" — it is for foundations awarding grants, not for nonprofits managing the ones they win. If grant tracking is your requirement, neither platform answers it and you will want a grants tool or a CRM that records them.
Zeffy is 100% free: no platform fee, no processing fee, no monthly charge. OneCause publishes either a $2,995 annual package or pay-as-you-go from $200 with a 5% pay-later fee on funds raised. Blackbaud publishes no pricing and quotes per organization. You get the same fundraising tools without losing part of what you raise to fees.
Yes. Zeffy handles donations, ticketing, auctions, raffles, memberships and email in one platform at zero cost. OneCause's catalogue is built around events and campaigns, while Blackbaud sells more than thirty separate products that are bought and implemented individually.
No training needed. Zeffy works out of the box and you can launch a campaign in minutes, with no setup fee and no plan upgrade to unlock a feature.
Zeffy offers free email and phone support to every nonprofit, whatever size you are and whatever you raise. There is no support tier to buy, because there are no tiers.
Zeffy accepts credit cards, ACH bank transfers, Apple Pay and Google Pay at zero cost, and you can take payments in person from a phone without buying a terminal.
Zeffy is the fundraising platform that cuts out the fees, clears up your tech mess, and puts your cause first — so your team, even if you're a small team wearing many hats or a one-person show, can focus on what really matters.
No platform fees. No processing fees. No catch. We know it sounds too good to be true, but it's not. Every penny goes straight to your mission, while competitors take 2-3% off every donation.

Stop bouncing between MailChimp, Eventbrite, and all those spreadsheets. Now you can handle donations, ticket sales, memberships, raffles, and all your donor info in one spot.
Built for teams like yours — whether you're volunteer-led or have limited staff. Set up donation forms, sell tickets, and launch campaigns without needing a tech wizard. It's super easy, and you'll be up and running in minutes.


From QR codes on flyers to Tap-to-Pay on a phone, Zeffy makes it easy to accept donations on the go. Mobile-optimized and offline-ready, so no donor slips through the cracks.
Centralize supporter relationships, automate thank-you messages, and preserve institutional knowledge when board members rotate out.

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As a startup nonprofit with only two members, and no funding (yet) we’d need something with low (or no) fees. Zeffy was a dream come true.
Masey, Loose Ends.
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