OneCause vs Zeffy: Which Should You Choose in 2026?
Choosing between OneCause and Zeffy comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 22, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
OneCause
Empower cause-driven organizations to raise more with best-in-class event and online fundraising software.
Best for you if:
- • You need event platforms features specifically
- • All-in-one platform for event, auction, and online fundraising.
- • Empowers peer-to-peer campaigns and facilitates Text2Give® donations.
Zeffy
All-in-one fundraising platform with zero fees for nonprofits.
Best for you if:
- • You need something completely free
- • You need nonprofit tools features specifically
- • 100% free fundraising platform for nonprofits.
- • Covers all transaction and platform fees.
| At a Glance |  OneCause |  Zeffy |
|---|---|---|
Price | Paid | Free |
Best For | Event Platforms | Nonprofit Tools |
Rating | —/100 | —/100 |
| Feature | OneCause | Zeffy |
|---|---|---|
| Pricing Model | Paid | Free |
| Editorial Score | — | — |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Event PlatformsNonprofit Tools | Nonprofit ToolsFundraising |
How OneCause and Zeffy Compare
OneCause
Empower cause-driven organizations to raise more with best-in-class event and online fundraising software.
Paid
Zeffy
All-in-one fundraising platform with zero fees for nonprofits.
Free
OneCause is a event platforms tool. Zeffy is in nonprofit tools.
Who Should Use What?
On a budget?
Zeffy is free. OneCause is paid.
Go with: Zeffy
Want the highest-rated option?
Neither has been rated yet.
Go with: OneCause
Value user reviews?
Neither has user reviews yet.
Go with: OneCause
3 Questions to Help You Decide
What's your budget?
OneCause is paid. Zeffy is free. Go with Zeffy if free matters most.
What's your use case?
OneCause is a event platforms tool. Zeffy is in nonprofit tools. Pick the category that matches your needs.
How important are ratings?
Not all tools have been rated yet.
Key Takeaways
OneCause
- Our pick for this comparison
Zeffy
- Completely free
- Better fit for nonprofit tools
The Bottom Line
OneCause is our pick. That said, Zeffy is free — hard to beat on price.
Frequently Asked Questions
Is OneCause or Zeffy better?
OneCause scores high/100 in our evaluation. OneCause is paid and Zeffy is free.
What are OneCause and Zeffy used for?
OneCause: Empower cause-driven organizations to raise more with best-in-class event and online fundraising software.. Zeffy: All-in-one fundraising platform with zero fees for nonprofits..
What does OneCause cost vs Zeffy?
OneCause is a paid tool. Zeffy is completely free. Visit their websites for detailed pricing.