MonthFund vs. Zeffy
MonthFund vs. Zeffy:
Transparent fees vs. donor tips.
Zeffy is a solid general-purpose nonprofit platform. But it does not support pick-a-date calendar fundraisers, and it funds itself through donor tips. MonthFund is the specialist for the calendar model, with honest, disclosed pricing.
No credit card required. Free to start.
Two different models
MonthFund charges a clear, disclosed infrastructure fee on each donation. Donors see exactly what they are paying and can cover it in one click. Your donors give to you, not to our software.
MonthFund is free to launch. We use a transparent infrastructure fee that donors see and cover at checkout, so your cause keeps 100% of their intended gift. Zeffy funds itself with optional donor contributions at checkout. Donorbox and raffle reviews in 2026 describe the default as 17 percent on gifts up to about $99.50 and 15 percent above that. Donors can set it to zero. The organization still receives 100% of the gift amount.
Why organizations choose MonthFund
Built for the calendar fundraiser. Nothing else.
Zeffy does not support calendar fundraisers
Zeffy covers donation forms, events, peer-to-peer, memberships, raffles, auctions, and an online store. It does not offer a pick-a-date or 31-day calendar fundraiser format. If the calendar model is your primary fundraiser, MonthFund is built for that format.
Your cause keeps 100%. Donors cover the infrastructure.
MonthFund adds a transparent 3% infrastructure fee at checkout. Donors see it and can cover it in one click so the organization receives the full intended gift. Zeffy asks donors for an optional platform contribution instead. Donorbox and raffle reviews in 2026 describe the default as 17 percent under about $100 and 15 percent above.
Tools built for the 31-day format
MonthFund includes individual participant calendar pages, automated fill-rate reminders, live day-by-day tracking, and campaign reporting. Cross-campaign rollups are on Professional and Network. All of it is built specifically for the 31-day format. None of it exists in Zeffy.
Donors see a fee, not a default contribution to software
Zeffy still sends 100% of the gift to the nonprofit. The extra is a defaulted platform contribution, often 17% under about $100 and 15% above, per Donorbox and raffle reviews. MonthFund shows a 3%, 2%, or 0% infrastructure fee and lets the donor cover it in one click. The rate is published. It does not hide inside a tip prompt.
Feature Comparison
MonthFund vs. Zeffy,
side by side.
Have a question about a specific feature? Contact us.
| Feature | Purpose-builtMonthFund | CompetitorZeffy |
|---|---|---|
| Calendar Fundraiser | ||
| Pick-a-date / 31-day calendar fundraiserZeffy does not offer this format | Yes | No |
| Individual participant calendar pages | Yes | No |
| Live fill rate tracking | Yes | No |
| Automated participant reminders | Yes | No |
| Day-by-day donor assignment | Yes | No |
| Pricing and Fees | ||
| Infrastructure fee | 3% (free), 2%, or 0% | 0% |
| Donor tip to platform at checkoutOptional. Donorbox and raffle reviews in 2026 describe 17% under ~$100, 15% above. | ✗ Never | Yes |
| Subscription to lower fees | ✓ ($49 or $199/mo) | No |
| Payment processing fee | 2.9% + $0.30 | 0% (covered by tips) |
| Donors cover infrastructure fee (transparent, one click) | Yes | ✗ (tip model only) |
| General Fundraising | ||
| Donation forms | Yes | Yes |
| Event ticketing | No | Yes |
| Peer-to-peer fundraising | ✓ (calendar model) | Yes |
| Monthly recurring giving | Yes | Yes |
| Memberships | No | Yes |
| Auctions, raffles, and online store | No | Yes |
| Participant and Donor Management | ||
| Participant dashboards | Yes | General peer-to-peer |
| Bulk email to participants | Yes | Yes |
| Donor management / CRM | Basic | ✓ (full CRM) |
| Automated tax receipts | Yes | Yes |
| Reporting | ||
| Campaign analytics | Yes | Yes |
| Full campaign report | Yes | Yes |
| Cross-campaign reporting | ✓ (Professional+) | Yes |
| Accounting CSV export | ✓ (Professional+) | Yes |
Based on publicly available information retrieved 2026-09-01. Visit Zeffy to verify their current features.
The Math
Know exactly what your org keeps.
On a fully funded $10,000 campaign on MonthFund's free Community tier, here is the breakdown if every donor covers fees at checkout.
Full pricing breakdownExample: $10,000 campaign
No. Zeffy supports donation forms, events, peer-to-peer, memberships, and auctions. It does not offer a pick-a-date or 31-day calendar fundraiser format. MonthFund is built specifically for this model.
Zeffy is funded by optional donor contributions at checkout. Zeffy says about two of three donors leave a contribution. Donorbox and raffle reviews in 2026 describe the default as 17 percent on gifts up to about $99.50 and 15 percent above that. Donors can set it to zero. The nonprofit still receives 100% of the gift. MonthFund charges a published 3%, 2%, or 0% infrastructure fee instead, which donors can cover in one click.
No. MonthFund works for any group with a community: schools, PTAs, sports teams, faith communities, civic organizations, and nonprofits. Zeffy is restricted to registered nonprofits. MonthFund is open to all.
Yes. Some organizations use Zeffy for general donation forms and event ticketing, while using MonthFund for their calendar fundraiser. The tools serve different purposes.
The fee is fully disclosed at checkout. Donors can cover it in one click so the organization receives the intended gift. The difference from Zeffy is that donors know the fee and where it goes. There are no default tips or hidden opt-ins.
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