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Productivity · head to head

Fastmail vs Structured

Fastmail logo

Fastmail

Productivity

Paid email hosting with custom domains, calendar and contacts, run without ad-based revenue

From
$3/month
Rated
-
Full reviewWebsite
Structured logo

Structured

Productivity

Visual daily planner for time blocking

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Structured has a free tier, so it costs nothing to try first.
  • Each has a real cost: Fastmail it does not provide end-to-end encryption by default, so users specifically wanting zero-knowledge mail should compare it against Proton Mail or Tuta rather than assume parity.; Structured no monthly view available, only daily and weekly views, limiting ability to preview long-term schedules
  • They diverge on capability: Fastmail covers Custom domain hosting, Structured covers Visual timeline.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Fastmail and Structured actually diverge.

Attributes where Fastmail and Structured differ
AttributeFastmailStructured
Starting price$3/monthFree
Pricing modelPer user per monthUnknown
Free tierNoYes
PlatformsWeb, iOS, Android, macOS, WindowsiOS, iPadOS, macOS, Android, Web, Apple Watch
FoundedUnknown2020

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

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 Fastmail

  • Custom domain hosting
  • Masked email
  • Unlimited aliases
  • Integrated calendar and contacts
  • Migration tools
  • JMAP support

Only in Structured

  • Visual timeline
  • Time blocking
  • Calendar integration
  • Widgets
  • Recurring tasks
  • Apple Calendar
  • Google Calendar
  • Apple Reminders

What people use each for

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

Fastmail

  • Someone who wants their email address tied to a domain they own rather than a free provider they do notnot Structured
  • A small business wanting hosted mail on its own domain without running mail server infrastructurenot Structured
  • A person leaving Gmail specifically to stop an ad-funded provider processing their mailnot Structured
  • A household migrating several accounts to one paid provider with shared billingnot Structured

Structured

  • Productivitynot Fastmail
  • Collaborationnot Fastmail
  • Task managementnot Fastmail
  • Organizationnot Fastmail

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Fastmail

  • It does not provide end-to-end encryption by default, so users specifically wanting zero-knowledge mail should compare it against Proton Mail or Tuta rather than assume parity.
  • Moving to Fastmail is a real migration with DNS changes for a custom domain, unlike installing a client such as Spark or Bluemail over an existing account.
  • There is no free tier at all, so a user just wanting to try it commits to a paid trial rather than a permanently free option.
  • Storage limits on the entry Basic plan are modest next to the free allowance Gmail gives, and heavy attachment users will need Standard or above.
  • Being based in Australia means it falls under Australian data access law, which some privacy-focused buyers weigh differently from Swiss or German jurisdictions used by Proton Mail and Tuta.

Structured

  • No monthly view available, only daily and weekly views, limiting ability to preview long-term schedules
  • Cannot export to Excel, PDF, or other printable formats; only JSON export available on Apple devices
  • Calendar import requires Pro subscription (except on web where free import is available)
  • Android and web versions significantly lag behind iOS version in features and performance
  • One-way calendar sync only; cannot export Structured tasks back to Google Calendar or other external calendar apps

Pricing, plan by plan

Fastmail

$3/month
  • Basic$3/month
    • 6GB storage
    • No custom domain support
    • Core mail, calendar and contacts
  • Standard$5/month
    • 60GB storage
    • Custom domain support
    • Masked email and aliases
  • Professional$9/month
    • 150GB storage
    • Multiple custom domains
    • Priority support

Structured

Free
  • FreeFree
    • Timeline tasks and all-day tasks
    • Task subtasks and notes
    • Icons and color coding
  • Pro$undefined/month or year or lifetime
    • Structured AI for smart planning
    • Calendar and reminders import
    • Recurring tasks

Which should you pick?

Choose Fastmail if

  • You need custom domain hosting.
  • You work on Web, iOS, Android, macOS, Windows.
  • You also want masked email.
Fastmail review

Choose Structured if

  • You need visual timeline.
  • You want to start without paying.
  • You work on iOS, iPadOS, macOS, Android, Web, Apple Watch.
  • You also want time blocking.
Structured review

Questions people ask

Is Fastmail or Structured better?
Neither clearly leads. Fastmail starts at $3/month and Structured at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fastmail or Structured?
Structured has a free tier; the other does not. Paid plans start at $3/month for Fastmail and Free for Structured.
Does Fastmail or Structured run on more platforms?
Fastmail runs on Web, iOS, Android, macOS, Windows. Structured runs on iOS, iPadOS, macOS, Android, Web, Apple Watch.
Can I use Structured for free?
Yes. Structured has a free tier, so you can try it without paying. Fastmail starts at $3/month.
What is Fastmail best used for?
Fastmail is most often used for someone who wants their email address tied to a domain they own rather than a free provider they do not, a small business wanting hosted mail on its own domain without running mail server infrastructure, a person leaving gmail specifically to stop an ad-funded provider processing their mail, a household migrating several accounts to one paid provider with shared billing. Of those, someone who wants their email address tied to a domain they own rather than a free provider they do not and a small business wanting hosted mail on its own domain without running mail server infrastructure are not what Structured is typically brought in for.
What can Fastmail do that Structured cannot?
Fastmail covers Custom domain hosting, Masked email, Unlimited aliases, Integrated calendar and contacts. Structured covers Visual timeline, Time blocking, Calendar integration, Widgets.

Answered from the vendors’ own pages

Fastmail: Is Fastmail a client like Spark, or does it host my email?

It hosts the mailbox itself; there is no separate provider underneath it the way Spark sits over Gmail.

Structured: Is Structured free to use?

Yes, Structured has a free tier that includes timeline tasks, all-day tasks, inbox tasks, subtasks, notes, icons, color coding, drag and drop, and calendar import on web (though calendar import requires Pro on iOS/Android). The app is free to download on iOS, Android, Mac, and web.

Source
Fastmail: Does Fastmail offer end-to-end encryption?

Not by default in the way Proton Mail or Tuta do; its privacy position rests on being subscription-funded rather than ad-funded.

Structured: What does Structured Pro cost and what features does it add?

Structured Pro is available as a monthly or yearly subscription, or as a one-time lifetime purchase for $99.99 USD. Pro adds Structured AI, calendar import and reminders import (on iOS/Android), recurring tasks, replan functionality, custom notifications, and custom color palettes.

Source
Fastmail: Can I use my own domain?

Yes, from the Standard plan up, with full alias and masked email support.

Structured: Can I import my Google Calendar into Structured?

Yes, Structured supports importing calendars from Google Calendar, Outlook, Microsoft Exchange, Yahoo, and AOL. On iOS, it connects through Apple Calendar compatibility. On Android and web, you authenticate with your Google account and select which calendars to sync. This feature requires a Structured Pro subscription.

Source
Structured: Can I export my tasks from Structured and in what formats?

On Apple devices, you can export your data as a JSON file through Settings > About > Privacy & Permissions > Export Your Data. However, you cannot export tasks to external calendars, nor can you export to printable formats like Excel or PDF. Export is one-way only.

Source
Structured: Does Structured work across all my devices?

Yes, Structured syncs across iPhone, iPad, Mac, Apple Watch, and Android devices. However, users have reported that iCloud synchronization can be unreliable, and the Android and web versions have fewer features and slower performance compared to the iOS version.

Source
Structured: What calendar and reminder apps does Structured integrate with?

On iOS, Structured can import from Apple Calendar, Reminders, Google Calendar, Outlook, Microsoft Exchange, Yahoo, and AOL. On Android and web, it supports Google Calendar. Structured can import events and reminders, but cannot export tasks back to external calendars.

Source
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