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Nonprofits · head to head

Mightycause vs OpenGrants

Mightycause logo

Mightycause

Nonprofits

Fundraising platform for nonprofits and causes

From
Free
Rated
-
Full reviewWebsite
OpenGrants logo

OpenGrants

Nonprofits

Low-cost grant search across federal, state and private funders, with a paid consultant marketplace alongside

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Mightycause no paid tiers or premium upgrade options available; OpenGrants coverage of private foundations is thinner and less curated than Candid or Instrumentl, so a prospect list built solely from OpenGrants will miss foundations that never post public opportunity notices.
  • They diverge on capability: Mightycause covers Campaign creation, OpenGrants covers Grant search.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mightycause and OpenGrants actually diverge.

Attributes where Mightycause and OpenGrants differ
AttributeMightycauseOpenGrants
Pricing modelsubscriptionPer user per month
PlatformsWeb, Mobile-responsiveWeb
Founded2008Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Mightycause

  • Campaign creation
  • Donation collection
  • Email campaigns
  • Donation tracking
  • Social sharing
  • Stripe
  • PayPal
  • Google Analytics

Only in OpenGrants

  • Grant search
  • Saved searches and alerts
  • Funder profiles
  • Opportunity tracking
  • Consultant marketplace
  • Free tier

What people use each for

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

Mightycause

  • Nonprofits running online donation and peer-to-peer fundraising campaigns without a software subscription feenot OpenGrants

OpenGrants

  • A small nonprofit with no research budget that needs to know whether relevant grants exist before hiring anyonenot Mightycause
  • A startup hunting SBIR, state innovation and economic development funding across multiple agenciesnot Mightycause
  • A freelance grant writer covering several clients who cannot pass on a several-hundred-dollar monthly database costnot Mightycause
  • An organisation wanting to hire a grant writer for one application without running a procurementnot Mightycause

Where each one falls short

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

Mightycause

  • No paid tiers or premium upgrade options available

OpenGrants

  • Coverage of private foundations is thinner and less curated than Candid or Instrumentl, so a prospect list built solely from OpenGrants will miss foundations that never post public opportunity notices.
  • The index leans on public opportunity feeds, which means it is strongest on government funding and weakest on the relationship-driven private philanthropy that most nonprofits actually rely on.
  • Matching is keyword driven rather than fit-scored, so users receive alerts for opportunities they are ineligible for and must qualify each one by hand.
  • The consultant marketplace is a directory with variable quality rather than a vetted panel, so buyers carry the risk of choosing a weak grant writer themselves.
  • It is a US-focused index, offering little to organisations seeking UK, EU or Canadian funding.

Pricing, plan by plan

Mightycause

Free
  • FreeFree
    • Campaign creation
    • Donation collection
  • Professional$50/month
    • Advanced features
    • Email campaigns
    • Premium support

OpenGrants

Free
  • FreeFree
    • Core grant search
    • Limited results and saved searches
    • No card required
  • Subscription$9/month
    • Full search access
    • Saved searches and alerts
    • Funder profiles

Which should you pick?

Choose Mightycause if

  • You need campaign creation.
  • You want to start without paying.
  • You work on Web, Mobile-responsive.
  • You also want donation collection.
Mightycause review

Choose OpenGrants if

  • You need grant search.
  • You want to start without paying.
  • You also want saved searches and alerts.
OpenGrants review

Questions people ask

Is Mightycause or OpenGrants better?
Neither clearly leads. Mightycause starts at Free and OpenGrants at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mightycause or OpenGrants?
Mightycause starts at Free and OpenGrants at Free.
Does Mightycause or OpenGrants run on more platforms?
Mightycause runs on Web, Mobile-responsive. OpenGrants runs on Web.
Can I use Mightycause for free?
Both have a free tier, so you can try either at no cost before committing.
What is Mightycause best used for?
Mightycause is most often used for nonprofits running online donation and peer-to-peer fundraising campaigns without a software subscription fee. Of those, nonprofits running online donation and peer-to-peer fundraising campaigns without a software subscription fee is not what OpenGrants is typically brought in for.
What can Mightycause do that OpenGrants cannot?
Mightycause covers Campaign creation, Donation collection, Email campaigns, Donation tracking. OpenGrants covers Grant search, Saved searches and alerts, Funder profiles, Opportunity tracking.

Answered from the vendors’ own pages

Mightycause: How much does Mightycause cost?

Mightycause is completely free to use. The platform provides full fundraising capabilities at zero cost per month for nonprofit organizations.

Source
OpenGrants: How much does it cost?

$9 a month or $99 a year after a seven day trial, with a free tier of core search retained.

Mightycause: Is Mightycause free forever?

Yes, Mightycause charges zero dollars per month for all nonprofit organizations using its fundraising platform.

Source
OpenGrants: Why is it so much cheaper than Candid?

Because it indexes public and semi-public opportunity feeds with automation rather than employing researchers to code foundation records from tax filings. You trade depth of private foundation intelligence for price.

Mightycause: Are there any hidden costs or add-on fees?

No hidden costs are mentioned. Mightycause emphasizes that it provides a complete feature set for nonprofit fundraising at no cost, positioning itself as an alternative to paid fundraising tools.

Source
OpenGrants: Does it cover private foundations?

Partially. It is strongest on federal and state programmes. For systematic private foundation research, Candid remains the reference source.

OpenGrants: Is the consultant marketplace vetted?

It is a directory, not a vetted panel. Check references and past awards yourself.

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