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Nonprofits · head to head

Constant Contact vs Fluxx

Constant Contact logo

Constant Contact

Nonprofits

Email marketing and event management

From
Free
Rated
-
Full reviewWebsite
Fluxx logo

Fluxx

Nonprofits

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

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Constant Contact has a free tier, so it costs nothing to try first.
  • Each has a real cost: Constant Contact core plan started at $9.99 per month and Plus plan at $45 per month, both scaling by contact list size rather than a flat rate (Internet Archive capture, 2022); 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.
  • They diverge on capability: Constant Contact covers Email marketing, Fluxx covers Configurable data model.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Constant Contact and Fluxx actually diverge.

Attributes where Constant Contact and Fluxx differ
AttributeConstant ContactFluxx
Starting priceFreeOn request
Pricing modelsubscriptionquote
Free tierYesNo
PlatformsWeb, Mobile-responsiveWeb
Founded1995Unknown

Identical on both: 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 Constant Contact

  • Email marketing
  • Event management
  • Contact management
  • Automation
  • Analytics
  • Salesforce
  • Zapier
  • Google Analytics

Only in Fluxx

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

What people use each for

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

Constant Contact

  • Business operationsnot Fluxx
  • Productivitynot Fluxx
  • Automationnot Fluxx

Fluxx

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

Where each one falls short

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

Constant Contact

  • Core plan started at $9.99 per month and Plus plan at $45 per month, both scaling by contact list size rather than a flat rate (Internet Archive capture, 2022)

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.

Pricing, plan by plan

Constant Contact

Free
  • FreeFree
    • Basic email marketing
    • Contacts up to 100
  • Plus$45/month
    • Advanced features
    • Event management
    • Automation

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

Which should you pick?

Choose Constant Contact if

  • You need email marketing.
  • You want to start without paying.
  • You work on Web, Mobile-responsive.
  • You also want event management.
Constant Contact review

Choose Fluxx if

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

Questions people ask

Is Constant Contact or Fluxx better?
Neither clearly leads. Constant Contact starts at Free and Fluxx at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Constant Contact or Fluxx?
Constant Contact has a free tier; the other does not. Paid plans start at Free for Constant Contact and On request for Fluxx.
Does Constant Contact or Fluxx run on more platforms?
Constant Contact runs on Web, Mobile-responsive. Fluxx runs on Web.
Can I use Constant Contact for free?
Yes. Constant Contact has a free tier, so you can try it without paying. Fluxx starts at On request.
What is Constant Contact best used for?
Constant Contact is most often used for business operations, productivity, automation. Of those, business operations and productivity are not what Fluxx is typically brought in for.
What can Constant Contact do that Fluxx cannot?
Constant Contact covers Email marketing, Event management, Contact management, Automation. 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.

Fluxx: How is Fluxx priced?

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

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.

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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