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Nonprofits · head to head

Fluxx vs Fundraise Up

Fluxx logo

Fluxx

Nonprofits

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

From
On request
Rated
-
Full reviewWebsite
Fundraise Up logo

Fundraise Up

Nonprofits

Donation checkout layer that replaces the giving form on an existing nonprofit website

From
On request
Rated
-
Full reviewWebsite

The short version

  • 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.; Fundraise Up the fee is a percentage of donations, so cost rises exactly as the product succeeds, and a single large gift routed through the checkout carries the same rate as a twenty pound one unless the agreement caps it.
  • They diverge on capability: Fluxx covers Configurable data model, Fundraise Up covers Embedded donation checkout.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Fluxx and Fundraise Up actually diverge.

Attributes where Fluxx and Fundraise Up differ
AttributeFluxxFundraise Up
Pricing modelquotePercentage of each donation

Identical on both: starting price (On request), free tier (No), 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 Fundraise Up

  • Embedded donation checkout
  • Digital wallet payments
  • Recurring gift upgrade prompts
  • Multi currency and multi language
  • Donor covered fees
  • CRM sync

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 Fundraise Up
  • A regranting intermediary administering funds for multiple donors who each require separate reportingnot Fundraise Up
  • A public agency distributing grant funds with statutory eligibility rules that must be enforced before an application can be submittednot Fundraise Up
  • A funder moving off spreadsheets and email after grant volume made manual board packet preparation unworkablenot Fundraise Up

Fundraise Up

  • A charity with a working CRM and website that wants to raise online conversion without replatformingnot Fluxx
  • An international organisation needing donors to give in local currency and languagenot Fluxx
  • A campaign pushing one time givers into monthly recurring support at the point of donationnot Fluxx
  • A digital team that can measure conversion before and after and justify a percentage fee with datanot 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.

Fundraise Up

  • The fee is a percentage of donations, so cost rises exactly as the product succeeds, and a single large gift routed through the checkout carries the same rate as a twenty pound one unless the agreement caps it.
  • It is a checkout, not a CRM, so it is always an additional cost on top of a donor database rather than a replacement for one.
  • Donor covered fee opt in rates vary widely by audience, so an organisation with an older or offline leaning donor base absorbs more of the fee than the sales model assumes.
  • Design control is limited to what the embedded component exposes, so brand teams that want full control over the giving experience will hit boundaries.
  • Live recurring gift authorisations are held in the platform, which makes leaving considerably harder than adopting, because migrating active mandates risks lapsing donors.

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

Fundraise Up

On request
  • Fundraise Up$undefined/year
    • Platform fee taken as a percentage of every donation processed
    • Card processing billed separately on top of the platform fee
    • Optional donor covered fee prompt shifts the cost to the giver rather than removing it

Which should you pick?

Choose Fluxx if

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

Choose Fundraise Up if

  • You need embedded donation checkout.
  • You also want digital wallet payments.
Fundraise Up review

Questions people ask

Is Fluxx or Fundraise Up better?
Neither clearly leads. Fluxx starts at On request and Fundraise Up at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fluxx or Fundraise Up?
Fluxx starts at On request and Fundraise Up at On request.
Does Fluxx or Fundraise Up run on more platforms?
Both run on Web, so platform support will not decide this one for you.
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 Fundraise Up is typically brought in for.
What can Fluxx do that Fundraise Up cannot?
Fluxx covers Configurable data model, Card-based interface, Multi-programme workflows, Board and committee review. Fundraise Up covers Embedded donation checkout, Digital wallet payments, Recurring gift upgrade prompts, Multi currency and multi language.

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.

Fundraise Up: Is Fundraise Up a CRM?

No. It is a donation checkout that syncs into a CRM you already run, so budget for both.

Fluxx: How is Fluxx priced?

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

Fundraise Up: How does it charge?

A percentage of each donation, plus separately billed card processing. There is no flat licence that insulates you from volume.

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.

Fundraise Up: Does the donor covered fee option remove the cost?

It shifts it. When donors opt in they pay the platform and processing fee; when they do not, the charity does.

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.

Fundraise Up: What happens to recurring donors if we leave?

Active recurring authorisations sit with the platform and its processor, and migrating them is the part of an exit most organisations underestimate.

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