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Calendars · head to head

Assistant.to vs Mimestream

Assistant.to logo

Assistant.to

Calendars

The easiest way to schedule meetings

From
Free
Rated
-
Full reviewWebsite
Mimestream logo

Mimestream

Productivity

Native Mac email client built specifically for Gmail and Google Workspace accounts, and nothing else

From
$4.99/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; Mimestream it only works with Gmail and Google Workspace, so it is entirely useless for anyone with an iCloud, Outlook, Yahoo or other IMAP account.
  • They diverge on capability: Assistant.to covers In-email scheduling, Mimestream covers Native Gmail labels.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where Assistant.to and Mimestream differ
AttributeAssistant.toMimestream
Starting priceFree$4.99/month
Pricing modelfreemiumPer user per month
Free tierYesNo
PlatformsChrome-extensionMac
CategoryCalendarsProductivity
Founded2014Unknown

Identical on both: 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 Mimestream

  • Native Gmail labels
  • Gmail filters
  • Fast local search
  • Conversation threading
  • Multiple account support
  • Native macOS integration

What people use each for

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

Assistant.to

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

Mimestream

  • A Mac user whose email is entirely Gmail or Google Workspace and wants a faster native alternative to the Gmail web appnot Assistant.to
  • Someone who finds Apple Mail handling of Gmail labels and search unreliable or confusingnot Assistant.to
  • A Google Workspace user managing multiple accounts who wants them combined in one native menu bar appnot Assistant.to
  • A user who wants Gmail-specific filters and search operators without opening a browser tabnot 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

Mimestream

  • It only works with Gmail and Google Workspace, so it is entirely useless for anyone with an iCloud, Outlook, Yahoo or other IMAP account.
  • It is a subscription with no permanent free tier or lifetime purchase option, so the cost is ongoing for as long as it is used.
  • It is Mac only, so it does nothing for a Windows machine or for mobile email, which still relies on the standard Gmail app or another client.
  • Because it depends entirely on Gmail API access, any change Google makes to that API could affect Mimestream functionality outside the developer control.
  • A user who wants one email client for multiple different providers has to run Mimestream alongside a second app for non-Gmail accounts, rather than consolidating everything in one place.

Pricing, plan by plan

Assistant.to

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

Mimestream

$4.99/month
  • Mimestream$4.99/month
    • 49.99 USD per year if billed annually
    • Free trial before purchase
    • Covers multiple Gmail or Google Workspace accounts

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 Mimestream if

  • You need native gmail labels.
  • You work on Mac.
  • You also want gmail filters.
Mimestream review

Questions people ask

Is Assistant.to or Mimestream better?
Neither clearly leads. Assistant.to starts at Free and Mimestream at $4.99/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Assistant.to or Mimestream?
Assistant.to has a free tier; the other does not. Paid plans start at Free for Assistant.to and $4.99/month for Mimestream.
Does Assistant.to or Mimestream run on more platforms?
Assistant.to runs on Chrome-extension. Mimestream runs on Mac.
Can I use Assistant.to for free?
Yes. Assistant.to has a free tier, so you can try it without paying. Mimestream starts at $4.99/month.
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 Mimestream is typically brought in for.
What can Assistant.to do that Mimestream cannot?
Assistant.to covers In-email scheduling, One-click booking, Google Calendar sync, Time zone handling. Mimestream covers Native Gmail labels, Gmail filters, Fast local search, Conversation threading.

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
Mimestream: Does Mimestream work with Outlook or iCloud Mail?

No. It connects only to Gmail and Google Workspace accounts and cannot be used with any other provider.

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
Mimestream: Is Mimestream free?

No. It is a subscription at 4.99 US dollars a month or 49.99 dollars a year, with a free trial but no permanent free tier.

Mimestream: Is it available on iPhone or iPad?

No. Mimestream is a Mac-only native app with no iOS version.

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