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Calendars · head to head

Assistant.to vs Resource Guru

Assistant.to logo

Assistant.to

Calendars

The easiest way to schedule meetings

From
Free
Rated
-
Full reviewWebsite
Resource Guru logo

Resource Guru

Calendars

The fast, simple way to schedule people and resources

From
$5/month
Rated
-
Full reviewWebsite

The short version

  • Only Assistant.to has a free tier, so it costs nothing to try first.
  • Each has a real cost: Assistant.to no publicly published pricing rates on website; Resource Guru limited advanced reporting and analytics compared to enterprise-level solutions
  • They diverge on capability: Assistant.to covers In-email scheduling, Resource Guru covers Resource scheduling.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Assistant.to and Resource Guru actually diverge.

Attributes where Assistant.to and Resource Guru differ
AttributeAssistant.toResource Guru
Starting priceFree$5/month
Pricing modelfreemiumUnknown
Free tierYesNo
PlatformsChrome-extensionWeb
Founded20142012

Identical on both: user rating (Not yet rated), category (Calendars).

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 Assistant.to

  • In-email scheduling
  • One-click booking
  • Google Calendar sync
  • Time zone handling
  • Simple interface
  • Gmail
  • Chrome-extension support

Only in Resource Guru

  • Resource scheduling
  • Availability management
  • Clash management
  • Forecasting
  • Leave management
  • Outlook
  • Slack
  • Zapier

Both cover

  • Google Calendar

What people use each for

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

Assistant.to

  • Scheduling
  • Appointment booking
  • Time tracking
  • Resource management
  • Team coordination

Resource Guru

  • Scheduling
  • Appointment booking
  • Time tracking
  • Resource management
  • Team coordination

Both are used for scheduling, appointment booking, time tracking, resource management, team coordination, 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.

Assistant.to

  • No publicly published pricing rates on website
  • Requires scheduling demo or contacting sales to obtain pricing information
  • Free trial available but no specific trial duration mentioned

Resource Guru

  • Limited advanced reporting and analytics compared to enterprise-level solutions
  • Lacks scalability for large organizations or complex project management scenarios
  • No offline mode requires constant internet connectivity
  • Limited integrations compared to competitors with broader ecosystem support
  • No native invoicing or billing features for financial management

Pricing, plan by plan

Assistant.to

Free
  • FreeFree
    • In-email scheduling
    • Basic features
  • Pro$5/month
    • Team features
    • Custom branding
    • Priority support

Resource Guru

$5/month
  • Grasshopper$5/month
    • Unlimited projects
    • Unlimited clients
    • Personalized dashboards
  • Blackbelt$8/month
    • All Grasshopper features
    • Timesheets
    • Time tracking
  • Master$12/month
    • All Blackbelt features
    • Booking approval workflow
    • SSO single sign-on

Which should you pick?

Choose Assistant.to if

  • You need in-email scheduling.
  • You want to start without paying.
  • You work on Chrome-extension.
  • You also want one-click booking.
Assistant.to review

Choose Resource Guru if

  • You need resource scheduling.
  • You also want availability management.
Resource Guru review

Questions people ask

Is Assistant.to or Resource Guru better?
Neither clearly leads. Assistant.to starts at Free and Resource Guru at $5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Assistant.to or Resource Guru?
Assistant.to has a free tier; the other does not. Paid plans start at Free for Assistant.to and $5/month for Resource Guru.
Does Assistant.to or Resource Guru run on more platforms?
Assistant.to runs on Chrome-extension. Resource Guru runs on Web.
Can I use Assistant.to for free?
Yes. Assistant.to has a free tier, so you can try it without paying. Resource Guru starts at $5/month.
What is Assistant.to best used for?
Assistant.to is most often used for scheduling, appointment booking, time tracking, resource management.
What can Assistant.to do that Resource Guru cannot?
Assistant.to covers In-email scheduling, One-click booking, Google Calendar sync, Time zone handling. Resource Guru covers Resource scheduling, Availability management, Clash management, Forecasting. Both handle Google Calendar.

Answered from the vendors’ own pages

Assistant.to: How much does Cirrus Insight (Assistant-to) cost?

Cirrus Insight does not publish specific pricing on its website. Pricing is customized based on your organization's needs. The platform offers a free trial and allows you to build a custom quote in the self-service hub or schedule a demo with the sales team.

Source
Resource Guru: How is Resource Guru priced?

Resource Guru offers three per-user tiers: Grasshopper ($5/month), Blackbelt ($8/month), and Master ($12/month). Annual billing gives 2 months free. Non-human resources like meeting rooms cost $2.08-5.00 per item depending on tier. A free 30-day trial is available.

Source
Assistant.to: How does Cirrus Insight pricing work with seat selection?

Cirrus Insight allows you to have full control over seat selection, meaning you can purchase different quantities of users for different features. For example, you could license 10 users for Email Sync and 5 users for Calendar Scheduling in the same account.

Source
Resource Guru: What integrations does Resource Guru offer?

Resource Guru integrates with Jira, Asana, Slack, Microsoft Teams, Google Calendar, Outlook Calendar, Zapier, Make, Salesforce, and Gmail for seamless workflow automation.

Source
Resource Guru: Does Resource Guru have time tracking?

Time tracking is included in Blackbelt and Master plans, allowing teams to monitor billable and non-billable hours. The Grasshopper plan does not include this feature.

Source
Resource Guru: Can Resource Guru be used offline?

No, Resource Guru is a cloud-based platform that requires internet connectivity to access. There is no offline mode available.

Source
Resource Guru: Is Resource Guru suitable for large enterprises?

Resource Guru works well for small to mid-sized teams and agencies but may face scalability limitations for large enterprises requiring advanced reporting, project financial visibility, or complex multi-team workflows.

Source
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