Calendar & Time Management · head to head
Assistant.to vs Resource Guru

Assistant.to
Calendar & Time Management
The easiest way to schedule meetings
- From
- Free
- Rated
- -

Resource Guru
Calendar & Time Management
The fast, simple way to schedule people and resources
- From
- $5/month
- Rated
- -
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 longer an independent product. assistant.to redirects to Cirrus Insight, which absorbed it; 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.
Where they differ
Only the attributes on which Assistant.to and Resource Guru actually diverge.
| Attribute | Assistant.to | Resource Guru |
|---|---|---|
| Starting price | Free | $5/month |
| Pricing model | freemium | Unknown |
| Free tier | Yes | No |
| Platforms | Chrome-extension | Web |
| Founded | 2014 | 2012 |
Identical on both: user rating (Not yet rated), category (Calendar & Time Management).
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 longer an independent product. assistant.to redirects to Cirrus Insight, which absorbed it
- Its scheduling now sits inside a wider Salesforce-focused sales tool rather than being a standalone add-in
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.
Choose Resource Guru if
- You need resource scheduling.
- You also want availability management.
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
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.
SourceResource 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.
SourceResource 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.
SourceResource 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.
SourceResource 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.
SourceRelated pages
More on Assistant.to
More on Resource Guru
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- Resource Guru vs Microsoft To Do
- Resource Guru vs OmniFocus
- Resource Guru vs Amie
- Resource Guru vs Outlook Calendar
- Resource Guru vs Float
- Resource Guru vs Google Tasks
- Resource Guru vs YouCanBook.me
- Resource Guru vs Cron Calendar
- Resource Guru vs Harvest Forecast
- Resource Guru vs SavvyCal
- Resource Guru vs Skedda
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