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Productivity · head to head

iA Writer vs Microsoft 365

iA Writer logo

iA Writer

Productivity

Distraction-free markdown writer with powerful focus mode

From
Free
Rated
-
Full reviewWebsite
Microsoft 365 logo

Microsoft 365

Productivity

Subscription bundle of the Office applications with mail, storage, meetings and organisational identity

From
$7/month
Rated
-
Full reviewWebsite

The short version

  • Only iA Writer has a free tier, so it costs nothing to try first.
  • Each has a real cost: iA Writer pricing varies by platform: Windows $29.99 while Mac/iPhone/iPad cost $49.99, creating $20 premium for Apple platforms; Microsoft 365 business plans are capped at 300 seats, so an organisation that grows past that must move to Enterprise plans, which changes both the price per user and the feature mix at the moment it can least afford a migration project.
  • They diverge on capability: iA Writer covers Distraction-free writing, Microsoft 365 covers Office applications.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which iA Writer and Microsoft 365 actually diverge.

Attributes where iA Writer and Microsoft 365 differ
AttributeiA WriterMicrosoft 365
Starting priceFree$7/month
Pricing modelone-timesubscription
Free tierYesNo
PlatformsMacOS, IOS, IPadOS, Android, WebWeb
Founded2008Unknown

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 iA Writer

  • Distraction-free writing
  • Markdown editing
  • Syntax highlighting
  • Dark and light themes
  • Cross-platform sync
  • Typewriter mode
  • Focus mode
  • Statistics

Only in Microsoft 365

  • Office applications
  • Hosted services
  • Teams
  • Microsoft Entra ID
  • OneDrive storage
  • Device management and endpoint protection
  • Purview compliance
  • Copilot

What people use each for

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

iA Writer

  • Distraction-free writing and note-taking applicationnot Microsoft 365
  • Markdown document creation and editingnot Microsoft 365
  • Cross-platform writing with iPad, iPhone, Mac, and Windows supportnot Microsoft 365

Microsoft 365

  • Any organisation that wants mail, documents, meetings and identity from one supplier on one bill.not iA Writer
  • A company standardising on single sign-on, where Entra ID becomes the account other services authenticate against.not iA Writer
  • Regulated work that needs retention, legal hold and eDiscovery across mail and documents, provided the tier that includes them is actually bought.not iA Writer
  • A household that needs installed Office applications on several machines rather than browser-only editing.not iA Writer

Where each one falls short

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

iA Writer

  • Pricing varies by platform: Windows $29.99 while Mac/iPhone/iPad cost $49.99, creating $20 premium for Apple platforms
  • One-time purchase model means major version updates may require additional payment beyond initial purchase
  • Update schedule uncertain, making it unclear when new versions become available and whether paid upgrades will be required

Microsoft 365

  • Business plans are capped at 300 seats, so an organisation that grows past that must move to Enterprise plans, which changes both the price per user and the feature mix at the moment it can least afford a migration project.
  • The compliance capabilities most organisations eventually need, including retention, data loss prevention, advanced eDiscovery and insider risk, sit at the top tier or in add-ons, so the real cost surfaces after an audit or a customer questionnaire rather than at purchase.
  • Annual term subscriptions commit you for the year and month-to-month terms cost measurably more per seat, so the flexibility to reduce seats during a quiet period is bought at a permanently higher rate.
  • Entra ID becomes the identity for everything else the organisation uses, which is the hardest kind of lock-in to put a number on, because leaving means re-federating every connected application rather than simply replacing a word processor.
  • The licensing model is complicated enough that most organisations are either over-licensed or quietly non-compliant, and reconciling it usually requires a partner or a specialist, which is a recurring cost that never appears in the advertised per-user figure.

Pricing, plan by plan

iA Writer

Free
  • Free TrialFree
    • 7-day free trial
    • Mac and Windows
    • No credit card required
  • Windows$29.99/one-time
    • One-time purchase
    • Own it forever
    • No subscription fees
  • Mac$49.99/one-time
    • One-time purchase
    • Own it forever
    • No subscription fees
  • iPhone & iPad$49.99/one-time
    • One-time purchase via App Store
    • Own it forever
    • No subscription fees

Microsoft 365

$7/month
  • Microsoft 365 Business Basic$7/month
    • Email and calendar with 50 GB mailbox
    • Web and mobile versions of Office apps
    • Microsoft Teams included
  • Microsoft 365 Business Standard$14/month
    • Desktop versions of Word, Excel, PowerPoint, Outlook
    • Email and Teams
    • 1 TB cloud storage per user
  • Microsoft 365 E5$60/month
    • Comprehensive security and compliance
    • All productivity apps
    • Advanced analytics

Which should you pick?

Choose iA Writer if

  • You need distraction-free writing.
  • You want to start without paying.
  • You work on MacOS, IOS, IPadOS, Android, Web.
  • You also want markdown editing.
iA Writer review

Choose Microsoft 365 if

  • You need office applications.
  • You also want hosted services.
Microsoft 365 review

Questions people ask

Is iA Writer or Microsoft 365 better?
Neither clearly leads. iA Writer starts at Free and Microsoft 365 at $7/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, iA Writer or Microsoft 365?
iA Writer has a free tier; the other does not. Paid plans start at Free for iA Writer and $7/month for Microsoft 365.
Does iA Writer or Microsoft 365 run on more platforms?
iA Writer runs on MacOS, IOS, IPadOS, Android, Web. Microsoft 365 runs on Web.
Can I use iA Writer for free?
Yes. iA Writer has a free tier, so you can try it without paying. Microsoft 365 starts at $7/month.
What is iA Writer best used for?
iA Writer is most often used for distraction-free writing and note-taking application, markdown document creation and editing, cross-platform writing with ipad, iphone, mac, and windows support. Of those, distraction-free writing and note-taking application and markdown document creation and editing are not what Microsoft 365 is typically brought in for.
What can iA Writer do that Microsoft 365 cannot?
iA Writer covers Distraction-free writing, Markdown editing, Syntax highlighting, Dark and light themes. Microsoft 365 covers Office applications, Hosted services, Teams, Microsoft Entra ID.

Answered from the vendors’ own pages

iA Writer: How much does iA Writer cost?

iA Writer costs $29.99 one-time for Windows, $49.99 one-time for Mac, and $49.99 one-time for iPhone & iPad. A 7-day free trial is available with no credit card required.

Source
Microsoft 365: What is the difference between Microsoft 365 and Office?

Office was a one-off licence for a specific version. Microsoft 365 is a subscription covering the applications and the hosted services together, and when payment stops the applications drop to a reduced state rather than continuing as they were.

iA Writer: What is iA Writer's licensing model?

iA Writer uses a one-time purchase model where customers pay once per platform and own the software forever with no subscription required, though major updates may require additional payment.

Source
Microsoft 365: Is Teams included?

Not automatically for newer customers. Microsoft unbundled Teams and now sells it alongside the suite, so check what a given quotation actually covers.

iA Writer: Do minor updates cost extra for iA Writer?

Minor updates are included with the one-time purchase, while major updates may require additional payment. The update schedule is uncertain.

Source
Microsoft 365: What happens to our files if we stop paying?

The documents remain yours and can be downloaded, but access to hosted mailboxes and sites ends after a retention window, so leaving requires a planned export rather than a cancellation.

iA Writer: Are there educational discounts for iA Writer?

Educational customers receive a 20% discount on Mac and Windows purchases made directly from iA, equaling approximately $39.99 for Mac and $23.99 for Windows.

Source
Microsoft 365: Is Copilot part of the subscription?

No. It is a per-user add-on on top of the base licence, generally with its own term commitment, and it is priced per seat regardless of how much any individual uses it.

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