Harness charges $99-$849/mo plus 2.9% per transaction. Zeffy includes donations, events, and CRM for $0.
Zeffy is trusted by 100,000+ nonprofits

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Harness charges monthly fees plus platform fees on top of processing costs. Zeffy is 100% free so you can invest in your mission, not software.
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Harness charges monthly fees, platform fees, and processing fees. Zeffy is 100% free, so your donors' gifts go directly to your mission, not your software budget.
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Harness support is built for enterprise tech teams. Zeffy's team knows nonprofits — we answer questions in plain language, help you launch fast, and never assume you have IT staff.
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Harness requires setup, training, and technical know-how. Zeffy is ready to use right away — create your first form, send it out, and start raising funds today.
Yes. Zeffy is 100% free for nonprofits. There are no monthly fees, no platform fees, and no hidden costs. Donors have the option to leave a voluntary contribution to keep Zeffy free for organizations like yours.
Yes. Zeffy accepts all major credit and debit cards, Apple Pay, Google Pay, and ACH bank transfers. Your donors can give however they prefer, and you keep 100% of every donation.
You can start raising funds in minutes. Create your first donation form, event, or campaign right away without setup fees, training sessions, or technical expertise. Just sign up and go live.
Zeffy includes donation forms, event ticketing, peer-to-peer campaigns, raffles, auctions, memberships, and a built-in CRM. Everything you need to raise funds and manage donors is included at no cost.
Harness charges monthly fees starting at $99/month (up to $849/month for higher tiers), plus a 1% platform fee and processing fees of 2.9% + $0.30 per transaction. Zeffy has no monthly fees, no platform fees, and covers all processing costs.
For small nonprofits watching every dollar, Zeffy offers the same core fundraising tools without the monthly subscription or per-transaction fees that Harness charges. You can launch donation forms, events, and peer-to-peer campaigns without paying $99+/month.
Yes. Harness charges 2.9% + $0.30 per transaction (or 2.2% + $0.30 on discounted plans), plus an additional 0.7% Stripe fee. Zeffy covers all credit card and processing fees, so your nonprofit keeps 100%.
There's no catch. Zeffy stays free through optional tips that donors can choose to leave at checkout. The tip is never required, and your nonprofit always receives the full donation amount.
Yes. Zeffy is designed to get you up and running in under 30 minutes with no setup fees or training required. You can create donation forms, events, and campaigns right away.
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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