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Nonprofits · head to head

Fluxx vs Givebutter

Fluxx logo

Fluxx

Nonprofits

Configurable grants management for foundations that run complex, multi-stage funding programmes

From
On request
Rated
-
Full reviewWebsite
Givebutter logo

Givebutter

Nonprofits

Free nonprofit fundraising with donor management and campaign tools

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Givebutter has a free tier, so it costs nothing to try first.
  • Each has a real cost: Fluxx configuration flexibility means the system does very little until someone configures it, and foundations without a dedicated systems administrator end up paying the vendor or a partner for every change.; Givebutter free tier includes 3% platform fee when donor tips are disabled
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Fluxx and Givebutter actually diverge.

Attributes where Fluxx and Givebutter differ
AttributeFluxxGivebutter
Starting priceOn requestFree
Pricing modelquotefreemium
Free tierNoYes

Identical on both: platforms (Web), user rating (Not yet rated), category (Nonprofits).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Fluxx

  • Configurable data model
  • Card-based interface
  • Multi-programme workflows
  • Board and committee review
  • Payment scheduling
  • Applicant portal

Only in Givebutter

Nothing recorded that Fluxx does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Fluxx

  • A foundation running six distinct funding programmes that each need their own application form, review panel and payment schedulenot Givebutter
  • A regranting intermediary administering funds for multiple donors who each require separate reportingnot Givebutter
  • A public agency distributing grant funds with statutory eligibility rules that must be enforced before an application can be submittednot Givebutter
  • A funder moving off spreadsheets and email after grant volume made manual board packet preparation unworkablenot Givebutter

Givebutter

  • Launching donation pages where donors cover feesnot Fluxx
  • Managing peer-to-peer and event fundraising togethernot Fluxx
  • Automating donor thank-you workflows and tasksnot Fluxx
  • Accepting donations across Venmo, PayPal, cards, ACHnot Fluxx

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Fluxx

  • Configuration flexibility means the system does very little until someone configures it, and foundations without a dedicated systems administrator end up paying the vendor or a partner for every change.
  • Implementation commonly runs four to eight months and is priced separately from the subscription, so first-year cost is far above the annual licence figure.
  • No pricing is published and quotes scale with assets under management, which means two foundations making the same number of grants can be quoted very differently.
  • The card-based interface is unfamiliar to new users and reviewer adoption suffers without training, which matters because trustees use it a few times a year and forget between meetings.
  • Reporting is capable but the report builder is technical, and many foundations end up exporting to a spreadsheet or a BI tool for board-ready output.

Givebutter

  • Free tier includes 3% platform fee when donor tips are disabled
  • Plus pricing varies by contact volume: up to $129/month for 2,500+ contacts

Pricing, plan by plan

Fluxx

On request
  • Fluxx Grantmaker$undefined/year
    • Configurable grantmaking workflows
    • Applicant portal and reviewer access
    • Priced by assets under management and grant volume
  • Fluxx Grantseeker$undefined/year
    • Free portal for applicants submitting to Fluxx funders
    • Tracks submissions and requirements across funders

Givebutter

Free
  • FreeFree
    • Donation forms
    • Fundraising pages
    • Donor CRM
  • Givebutter Plus$29/month
    • For 250 or fewer contacts: $29/month or $348/year
    • Automated workflows
    • Task management

Which should you pick?

Choose Fluxx if

  • You need configurable data model.
  • You also want card-based interface.
Fluxx review

Choose Givebutter if

  • You want to start without paying.
Givebutter review

Questions people ask

Is Fluxx or Givebutter better?
Neither clearly leads. Fluxx starts at On request and Givebutter at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fluxx or Givebutter?
Givebutter has a free tier; the other does not. Paid plans start at On request for Fluxx and Free for Givebutter.
Does Fluxx or Givebutter run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Givebutter for free?
Yes. Givebutter has a free tier, so you can try it without paying. Fluxx starts at On request.
What is Fluxx best used for?
Fluxx is most often used for a foundation running six distinct funding programmes that each need their own application form, review panel and payment schedule, a regranting intermediary administering funds for multiple donors who each require separate reporting, a public agency distributing grant funds with statutory eligibility rules that must be enforced before an application can be submitted, a funder moving off spreadsheets and email after grant volume made manual board packet preparation unworkable. Of those, a foundation running six distinct funding programmes that each need their own application form, review panel and payment schedule and a regranting intermediary administering funds for multiple donors who each require separate reporting are not what Givebutter is typically brought in for.
What can Fluxx do that Givebutter cannot?
Fluxx covers Configurable data model, Card-based interface, Multi-programme workflows, Board and committee review.

Answered from the vendors’ own pages

Fluxx: Is Fluxx Grantseeker really free?

Yes, for applicants. It is the submission portal, and funders pay for Grantmaker.

Givebutter: How much does Givebutter cost?

Givebutter's core platform is free to use. The optional Givebutter Plus upgrade starts at $29 per month for nonprofits with 250 or fewer contacts, scaling to $129 per month for 2,500+ contacts.

Source
Fluxx: How is Fluxx priced?

By quote, scaling with assets under management and grant volume. Implementation is a separate professional services fee.

Givebutter: How does Givebutter stay free?

Givebutter remains free when nonprofits enable optional donor tips. Donors can choose to tip when donating, and Givebutter covers any uncovered transaction costs through the Givebutter Guarantee. Without tips enabled, a 3% platform fee applies plus standard processor fees.

Source
Fluxx: Can we configure Fluxx ourselves?

Yes, that is the point of it. But it requires a trained internal administrator; foundations that do not appoint one become dependent on paid services.

Givebutter: Can I cancel Givebutter Plus anytime?

Yes, Givebutter Plus subscriptions can be cancelled anytime; cancellation takes effect at the end of the billing period. A 30-day Plus trial is available.

Source
Fluxx: How long does implementation take?

Typically four to eight months for a multi-programme funder, driven mostly by how long the foundation takes to agree its own process.

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