Nonprofits · head to head
Fluxx vs Sumac
Fluxx
Nonprofits
Configurable grants management for foundations that run complex, multi-stage funding programmes
- From
- On request
- Rated
- -
Sumac
Nonprofits
Modular nonprofit CRM that pairs donor management with client case management
- From
- On request
- Rated
- -
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.; Sumac pricing is not published at all, so a small organisation cannot compare Sumac against per contact priced competitors without committing to a sales process.
- They diverge on capability: Fluxx covers Configurable data model, Sumac covers Donor and gift management.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Fluxx and Sumac actually diverge.
Identical on both: starting price (On request), pricing model (quote), free tier (No), 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 Sumac
- Donor and gift management
- Case management module
- Memberships and volunteers
- Grant management
- Role based permissions
- Custom fields and forms
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 Sumac
- A regranting intermediary administering funds for multiple donors who each require separate reportingnot Sumac
- A public agency distributing grant funds with statutory eligibility rules that must be enforced before an application can be submittednot Sumac
- A funder moving off spreadsheets and email after grant volume made manual board packet preparation unworkablenot Sumac
Sumac
- A social service agency that must record client cases and donor gifts without buying two systemsnot Fluxx
- A charity that wants only donor and grant modules and refuses to pay for an events suite it will not usenot Fluxx
- A Canadian organisation wanting local support hours and receipting conventionsnot Fluxx
- An agency replacing a legacy Access or FileMaker database with something supportednot 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.
Sumac
- Pricing is not published at all, so a small organisation cannot compare Sumac against per contact priced competitors without committing to a sales process.
- The interface reflects the product's age, and staff arriving from consumer grade software find navigation and data entry slower than in newer CRMs.
- Holding client case notes and donor records in one database makes permission design a compliance obligation, and a misconfigured role can expose confidential client material to fundraising staff.
- The integration catalogue is small, so payment, email and accounting connections outside the listed few mean manual export or paid custom work.
- Modular licensing means the price rises in visible steps as programmes expand, and organisations frequently discover the module they need most was not in the original quote.
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
Sumac
On request- Sumac$undefined/year
- Quoted by module selection and organisation size
- Case management is a separately licensed module
- Implementation and data migration quoted separately
Which should you pick?
Choose Sumac if
- You need donor and gift management.
- You work on Web, Windows.
- You also want case management module.
Questions people ask
- Is Fluxx or Sumac better?
- Neither clearly leads. Fluxx starts at On request and Sumac at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Fluxx or Sumac?
- Fluxx starts at On request and Sumac at On request.
- Does Fluxx or Sumac run on more platforms?
- Fluxx runs on Web. Sumac runs on Web, Windows.
- 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 Sumac is typically brought in for.
- What can Fluxx do that Sumac cannot?
- Fluxx covers Configurable data model, Card-based interface, Multi-programme workflows, Board and committee review. Sumac covers Donor and gift management, Case management module, Memberships and volunteers, Grant management.
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.
Sumac: Is Sumac the same product as Societ?
The vendor has been moving its products under the Societ brand, so you may see both names for the same platform during a sales cycle.
Fluxx: How is Fluxx priced?
By quote, scaling with assets under management and grant volume. Implementation is a separate professional services fee.
Sumac: Can it handle client case management?
Yes, that is its clearest differentiator among donor CRMs. It is a licensed module, not part of the base product.
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.
Sumac: Is pricing published?
No. It is quoted by module and organisation size, which makes like for like comparison harder than with published per contact products.
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.
Sumac: Does it work for US charities?
Yes, though the vendor is Canadian and its receipting and support conventions are strongest for Canadian organisations.
Related pages
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