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Project Management · head to head

GanttPRO vs Zcal

GanttPRO logo

GanttPRO

Project Management

Online Gantt chart software

From
$7/month
Rated
-
Full reviewWebsite
Zcal logo

Zcal

Scheduling

Scheduling with an unusually large free tier and heavy branding control

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Zcal has a free tier, so it costs nothing to try first.
  • Each has a real cost: GanttPRO workload management, portfolios, reports and budget planning all require the Business plan at $17 per user per month; Zcal zcal branding stays on the free booking page, so the tier that is otherwise generous is not usable as a customer facing page for a business that cares how it looks.
  • They diverge on capability: GanttPRO covers Gantt charts, Zcal covers Unlimited booking links.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which GanttPRO and Zcal actually diverge.

Attributes where GanttPRO and Zcal differ
AttributeGanttPROZcal
Starting price$7/monthFree
Pricing modelsubscriptionPer user per month
Free tierNoYes
CategoryProject ManagementScheduling
Founded2015Unknown

Identical on both: platforms (Web), user rating (Not yet rated).

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 GanttPRO

  • Gantt charts
  • Resource management
  • Time tracking
  • Dependencies
  • Export
  • Jira
  • Slack
  • Google Drive

Only in Zcal

  • Unlimited booking links
  • Branded booking pages
  • Meeting polls
  • Group events
  • Round robin and collective
  • SMS reminders
  • Paid bookings

What people use each for

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

GanttPRO

  • Building Gantt chart schedules with auto scheduling and dependenciesnot Zcal
  • Planning resources and budgets against a project timelinenot Zcal

Zcal

  • A consultant who runs several different meeting types and refuses to pay a subscription for the privilege of having more than one booking linknot GanttPRO
  • A coach or recruiter who wants a branded page with a welcome video and intake questions before the call happensnot GanttPRO
  • A small team that needs round robin distribution of inbound calls without buying a full sales engagement platformnot GanttPRO
  • Anyone taking payment at the point of booking, where the Stripe connection removes an invoicing step afterwardsnot GanttPRO

Where each one falls short

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

GanttPRO

  • Workload management, portfolios, reports and budget planning all require the Business plan at $17 per user per month
  • SAML SSO, custom roles and API access are Enterprise only at $25 per user per month
  • The Enterprise plan carries a 5 user minimum and requires an annual subscription
  • Custom fields and calendar view are excluded from the entry Core plan
  • Every published rate assumes annual billing, which the vendor prices 20% below monthly

Zcal

  • Zcal branding stays on the free booking page, so the tier that is otherwise generous is not usable as a customer facing page for a business that cares how it looks.
  • Paid tier prices are not stated plainly in the product documentation and third party sources disagree on the figure, so the paid step up has to be confirmed on the vendor pricing page before budgeting for a team.
  • SMS reminders are credit metered on paid tiers, so a high volume booker can exhaust the allowance and be pushed up a tier by message count rather than by needing any feature.
  • The integration list is short next to established competitors, and there is no deep native CRM object writing, so a sales team that wants bookings to create and update CRM records will need automation glue.
  • It is a small vendor in a category dominated by much larger companies, which is fine for a personal booking link and a real consideration if booking is a core business process you cannot afford to migrate off in a hurry.

Pricing, plan by plan

GanttPRO

$7/month
  • Core$7/month
    • Annual billing (20% discount vs monthly)
    • Gantt charts, project calendar, auto scheduling
    • Unlimited virtual resources
  • Advanced$10/month
    • Annual billing
    • Overdue tasks, custom fields and filters
    • Calendar exceptions, custom project templates
  • Business$17/month
    • Annual billing
    • Workload management, portfolios and reports
    • Budget planning, time tracking
  • Enterprise$25/month
    • Annual billing (normally $35, 20% discount applied)
    • Minimum 5 users required
    • SAML SSO, custom roles and rights

Zcal

Free
  • Free ForeverFree
    • Unlimited booking links
    • Unlimited connected calendar accounts
    • Meeting polls and group events
  • Pro$undefined/month
    • Per user per month, priced on the vendor pricing page
    • Team creation and team pages
    • Round robin and collective events
  • Business$undefined/month
    • Per user per month, priced on the vendor pricing page
    • Everything in Pro
    • Custom domain and custom sending email domain

Which should you pick?

Choose GanttPRO if

  • You need gantt charts.
  • You also want resource management.
GanttPRO review

Choose Zcal if

  • You need unlimited booking links.
  • You want to start without paying.
  • You also want branded booking pages.
Zcal review

Questions people ask

Is GanttPRO or Zcal better?
Neither clearly leads. GanttPRO starts at $7/month and Zcal at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GanttPRO or Zcal?
Zcal has a free tier; the other does not. Paid plans start at $7/month for GanttPRO and Free for Zcal.
Does GanttPRO or Zcal run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Zcal for free?
Yes. Zcal has a free tier, so you can try it without paying. GanttPRO starts at $7/month.
What is GanttPRO best used for?
GanttPRO is most often used for building gantt chart schedules with auto scheduling and dependencies, planning resources and budgets against a project timeline. Of those, building gantt chart schedules with auto scheduling and dependencies and planning resources and budgets against a project timeline are not what Zcal is typically brought in for.
What can GanttPRO do that Zcal cannot?
GanttPRO covers Gantt charts, Resource management, Time tracking, Dependencies. Zcal covers Unlimited booking links, Branded booking pages, Meeting polls, Group events.

Answered from the vendors’ own pages

GanttPRO: What is GanttPRO's cheapest plan?

The Core plan starts at $7 per user per month with annual billing (20% discount vs monthly). It includes Gantt charts, project calendar, auto scheduling, and unlimited virtual resources.

Source
Zcal: Is the free plan actually usable?

Yes. Unlimited booking links and unlimited calendar connections, which is more than most competitors allow, but Zcal branding stays on the page.

GanttPRO: Does GanttPRO offer a free trial?

Yes, GanttPRO offers a 14-day free trial with full featured access and no credit card required. Large teams (20+ members) qualify for additional discounts, and nonprofits, students, and educators receive a 50% discount.

Source
Zcal: What do you pay for?

Team features, round robin and collective events, branding removal, custom fonts, SMS reminders and custom domains.

GanttPRO: What is included in GanttPRO's Enterprise plan?

The Enterprise plan ($25/user/month annual billing; minimum 5 users) includes SAML SSO, custom roles and rights, product training, resource conversion, unlimited storage, and all features from lower tiers. Monthly billing for Enterprise costs $35/user/month (regularly, before discount).

Source
Zcal: Can I take payment for bookings?

Yes, through the Stripe connection at the point of booking.

Zcal: Does it do round robin?

Yes, on the paid tiers. Round robin and collective events are not on the free plan.

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