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Calendars · head to head

Assistant.to vs Teamup

Assistant.to logo

Assistant.to

Calendars

The easiest way to schedule meetings

From
Free
Rated
-
Full reviewWebsite
Teamup logo

Teamup

Calendars

Shared calendar for groups and businesses

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Assistant.to no publicly published pricing rates on website; Teamup no dedicated desktop application for Windows or macOS; only web and mobile apps available
  • They diverge on capability: Assistant.to covers In-email scheduling, Teamup covers Sub-calendars.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Assistant.to and Teamup actually diverge.

Attributes where Assistant.to and Teamup differ
AttributeAssistant.toTeamup
Pricing modelfreemiumUnknown
PlatformsChrome-extensionWeb, iOS, Android

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Calendars), founded (2014).

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 Teamup

  • Sub-calendars
  • Access permissions
  • Signup sheets
  • Embeddable widgets
  • iCal sync
  • Outlook
  • iCal
  • 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

Teamup

  • 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

Teamup

  • No dedicated desktop application for Windows or macOS; only web and mobile apps available
  • Cannot edit events offline; mobile app limits editing to read-only when disconnected
  • Mobile app has significantly fewer features compared to the web version, requiring users to switch to browser for complex scheduling tasks

Pricing, plan by plan

Assistant.to

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

Teamup

Free
  • FreeFree
    • 5 sub-calendars
    • 1 custom field
    • 5 users
  • Plus$12/month
    • 12 sub-calendars
    • 12 users
    • 2GB storage
  • Pro$30/month
    • 25 sub-calendars
    • 25 users
    • 10 custom fields
  • Business$70/month
    • 70 sub-calendars
    • 50 users
    • 20 custom fields

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 Teamup if

  • You need sub-calendars.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want access permissions.
Teamup review

Questions people ask

Is Assistant.to or Teamup better?
Neither clearly leads. Assistant.to starts at Free and Teamup at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Assistant.to or Teamup?
Assistant.to starts at Free and Teamup at Free.
Does Assistant.to or Teamup run on more platforms?
Assistant.to runs on Chrome-extension. Teamup runs on Web, iOS, Android.
Can I use Assistant.to for free?
Both have a free tier, so you can try either at no cost before committing.
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 Teamup cannot?
Assistant.to covers In-email scheduling, One-click booking, Google Calendar sync, Time zone handling. Teamup covers Sub-calendars, Access permissions, Signup sheets, Embeddable widgets. 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
Teamup: Does Teamup work offline?

The Teamup mobile apps allow you to view your calendar offline on iOS and Android, seeing all scheduled events and details synced before you lost connectivity. However, you cannot edit existing events offline to prevent version conflicts. You can create new events offline, but they become read-only until you regain internet connection.

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
Teamup: Does Teamup integrate with Google Calendar or Outlook?

Teamup integrates with Google Calendar and Outlook through iCalendar (ICS) feeds, allowing you to synchronize Teamup events with your existing calendar systems. You can also use Zapier to automate workflows between Teamup and 2000+ third-party applications including Slack and Microsoft Teams.

Source
Teamup: What platforms does Teamup support?

Teamup is available as a web application, with native mobile apps for iOS and Android. There is no dedicated desktop application for Windows or macOS; the web version works in any modern browser.

Source
Teamup: Is there a free version of Teamup?

Yes, Teamup offers a free tier that includes 5 sub-calendars, 1 custom field, and up to 5 users. Paid plans start at $12 per month (billed yearly) and scale up to $160 per month for enterprise features.

Source
Teamup: Does Teamup support enterprise SSO?

Yes, Teamup supports Single Sign-On through Azure AD and OIDC (OpenID Connect) for enterprise customers. Organization accounts with SSO support start at $1,200 per year and scale incrementally by user count.

Source
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