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Calendars · head to head

Assistant.to vs Trello

Assistant.to logo

Assistant.to

Calendars

The easiest way to schedule meetings

From
Free
Rated
-
Full reviewWebsite
Trello logo

Trello

Project Management

Organize anything, together

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Assistant.to no publicly published pricing rates on website; Trello free tier limited to 10 boards and 10 collaborators per workspace
  • They diverge on capability: Assistant.to covers In-email scheduling, Trello covers Kanban boards.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Assistant.to and Trello differ
AttributeAssistant.toTrello
Pricing modelfreemiumUnknown
PlatformsChrome-extensionWeb, Ios, Android, Windows, Macos
CategoryCalendarsProject Management
Founded20142011

Identical on both: starting price (Free), free tier (Yes), 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 Assistant.to

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

Only in Trello

  • Kanban boards
  • Cards & lists
  • Drag-and-drop interface
  • Activity feed
  • Due dates & reminders
  • File attachments
  • Comments & mentions
  • Power-Ups ecosystem

What people use each for

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

Assistant.to

  • Schedulingnot Trello
  • Appointment bookingnot Trello
  • Time trackingnot Trello
  • Resource managementnot Trello
  • Team coordinationnot Trello

Trello

  • Project trackingnot Assistant.to
  • Content calendarsnot Assistant.to
  • Sales pipelinesnot Assistant.to
  • Onboarding processesnot Assistant.to
  • Personal task managementnot Assistant.to

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

Trello

  • Free tier limited to 10 boards and 10 collaborators per workspace
  • Free tier automation capped at 250 monthly Butler runs
  • No offline access; web-based platform requires internet connection
  • Advanced views (timeline, table, dashboard) not available on Standard plan
  • SSO only available on Enterprise plan

Pricing, plan by plan

Assistant.to

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

Trello

Free
  • FreeFree
    • Up to 10 boards/workspace
    • Up to 10 collaborators
    • 250 monthly Butler automation runs
  • Standard$5/user/month
    • Unlimited boards
    • Unlimited Power-Ups
    • 1,000 monthly Butler runs
  • Premium$10/user/month
    • All Standard features
    • Timeline, table, dashboard, calendar views
    • Unlimited automation
  • Enterprise$17.5/user/month
    • All Premium features
    • Unlimited workspaces
    • SSO and user provisioning

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 Trello if

  • You need kanban boards.
  • You want to start without paying.
  • You work on Web, Ios, Android, Windows, Macos.
  • You also want cards & lists.
Trello review

Questions people ask

Is Assistant.to or Trello better?
Neither clearly leads. Assistant.to starts at Free and Trello at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Assistant.to or Trello?
Assistant.to starts at Free and Trello at Free.
Does Assistant.to or Trello run on more platforms?
Assistant.to runs on Chrome-extension. Trello runs on Web, Ios, Android, Windows, Macos.
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. Of those, scheduling and appointment booking are not what Trello is typically brought in for.
What can Assistant.to do that Trello cannot?
Assistant.to covers In-email scheduling, One-click booking, Google Calendar sync, Time zone handling. Trello covers Kanban boards, Cards & lists, Drag-and-drop interface, Activity feed.

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
Trello: What are the free tier limitations for Trello?

Trello Free supports up to 10 boards per workspace, unlimited cards, 250 monthly Butler automation runs, and up to 10 Power-Up attachments. Limited to 10 collaborators per workspace.

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
Trello: What features are included in the Standard plan?

Standard ($5-6/user/month) adds unlimited boards, custom fields, advanced checklists, 1,000 monthly automation runs, list colors, and calendar view access.

Source
Trello: Does Trello offer SSO and on which plan?

SSO through Atlassian Guard is included only on the Enterprise plan ($17.50/user/month or $210/year per user).

Source
Trello: How many file attachment options are available?

Free tier includes 2 Power-Ups per board, Standard adds unlimited Power-Ups, and Premium and above offer full Power-Up marketplace access with custom integration options.

Source
Trello: Is there offline access to Trello boards?

Trello is a web-based application requiring internet connection. Mobile apps are available for iOS and Android but do not support true offline editing.

Source
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