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Nonprofits · head to head

Constant Contact vs GuideStar

Constant Contact logo

Constant Contact

Nonprofits

Email marketing and event management

From
Free
Rated
-
Full reviewWebsite
GuideStar logo

GuideStar

Nonprofits

Nonprofit profile and intelligence platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • 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); GuideStar guideStar and Foundation Directory are being retired and merged into a single Candid platform, per Candid's own learning.candid.org help pages, with existing subscribers redirected to log in at app.candid.org
  • They diverge on capability: Constant Contact covers Email marketing, GuideStar covers Nonprofit profile.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Constant Contact and GuideStar differ
AttributeConstant ContactGuideStar

Identical on both: starting price (Free), pricing model (subscription), free tier (Yes), platforms (Web, Mobile-responsive), user rating (Not yet rated), category (Nonprofits), founded (1995).

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
  • Zapier
  • Facebook

Only in GuideStar

  • Nonprofit profile
  • Impact data
  • Donor verification
  • Financial transparency
  • Ratings

Both cover

  • Salesforce
  • Google Analytics
  • Web support
  • Mobile-responsive support

What people use each for

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

Constant Contact

  • Business operations
  • Productivity
  • Automation

GuideStar

  • Business operations
  • Productivity
  • Automation

Both are used for business operations, productivity, automation, on those jobs the choice comes down to price and fit rather than capability.

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)

GuideStar

  • GuideStar and Foundation Directory are being retired and merged into a single Candid platform, per Candid's own learning.candid.org help pages, with existing subscribers redirected to log in at app.candid.org
  • Candid's own pricing page lists Candid Premium (annual) at $1,199 per year in USD, and $219 per month if billed monthly, with an Ultimate annual tier at $1,699 per year adding compliance monitoring features
  • Candid's free tier limits search results, profile views and dashboards; full grants and profile data downloads are capped even on Premium annual, at 1,000 grants downloads and 5,000 profile downloads per month

Pricing, plan by plan

Constant Contact

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

GuideStar

Free
  • ProfileFree
    • Nonprofit profile
    • Basic data
  • Gold$300/month
    • Enhanced profile
    • Donor verification
    • Impact reporting

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 GuideStar if

  • You need nonprofit profile.
  • You want to start without paying.
  • You work on Web, Mobile-responsive.
  • You also want impact data.
GuideStar review

Questions people ask

Is Constant Contact or GuideStar better?
Neither clearly leads. Constant Contact starts at Free and GuideStar at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Constant Contact or GuideStar?
Constant Contact starts at Free and GuideStar at Free.
Does Constant Contact or GuideStar run on more platforms?
Both run on Web, Mobile-responsive, so platform support will not decide this one for you.
Can I use Constant Contact for free?
Both have a free tier, so you can try either at no cost before committing.
What is Constant Contact best used for?
Constant Contact is most often used for business operations, productivity, automation.
What can Constant Contact do that GuideStar cannot?
Constant Contact covers Email marketing, Event management, Contact management, Automation. GuideStar covers Nonprofit profile, Impact data, Donor verification, Financial transparency. Both handle Salesforce, Google Analytics, Web support, Mobile-responsive support.
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Related pages

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