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Browser Extensions · head to head

Mercury Reader vs Superhuman

M

Mercury Reader

Browser Extensions

Clear clutter from articles instantly

From
Free
Rated
-
Full reviewWebsite
Superhuman logo

Superhuman

Technology

The fastest email experience ever made

From
$30/month
Rated
-
Full reviewWebsite

The short version

  • Only Mercury Reader has a free tier, so it costs nothing to try first.
  • Each has a real cost: Mercury Reader mercury Reader's underlying engine (Postlight Parser) is free open source software licensed under Apache License 2.0, per the GitHub repository, with no paid tier; Superhuman high pricing compared to free alternatives like Gmail
  • They diverge on capability: Mercury Reader covers Content extraction, Superhuman covers Blazing fast performance.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Mercury Reader and Superhuman actually diverge.

Attributes where Mercury Reader and Superhuman differ
AttributeMercury ReaderSuperhuman
Starting priceFree$30/month
Pricing modelfreeUnknown
Free tierYesNo
PlatformsChrome, Firefox, EdgeWeb, iOS
CategoryBrowser ExtensionsTechnology

Identical on both: user rating (Not yet rated), founded (2015).

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 Mercury Reader

  • Content extraction
  • Clean reading view
  • Custom themes
  • Font customization
  • Chrome support
  • Firefox support
  • Edge support

Only in Superhuman

  • Blazing fast performance
  • Keyboard-first design
  • AI-powered triage
  • Split inbox
  • Read statuses
  • Remind me later
  • Social insights
  • Calendar integration

What people use each for

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

Mercury Reader

No use cases recorded yet. See the Mercury Reader review.

Superhuman

  • Email managementnot Mercury Reader
  • Inbox zeronot Mercury Reader
  • Team collaborationnot Mercury Reader
  • Sales outreachnot Mercury Reader
  • Executive communicationnot Mercury Reader

Where each one falls short

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

Mercury Reader

  • Mercury Reader's underlying engine (Postlight Parser) is free open source software licensed under Apache License 2.0, per the GitHub repository, with no paid tier

Superhuman

  • High pricing compared to free alternatives like Gmail
  • Lacks unified inbox for managing multiple email accounts in a single view
  • Limited calendar functionality compared to dedicated scheduling tools
  • No native task management features

Pricing, plan by plan

Mercury Reader

Free
  • FreeFree
    • Clutter removal
    • Clean reading
    • Custom themes

Superhuman

$30/month
  • Starter$30/month
    • Email productivity
    • Superhuman AI
    • Team collaboration
  • Business$40/month
    • Auto Drafts
    • Ask AI
    • CRM integrations

Which should you pick?

Choose Mercury Reader if

  • You need content extraction.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge.
  • You also want clean reading view.
Mercury Reader review

Choose Superhuman if

  • You need blazing fast performance.
  • You work on Web, iOS.
  • You also want keyboard-first design.
Superhuman review

Questions people ask

Is Mercury Reader or Superhuman better?
Neither clearly leads. Mercury Reader starts at Free and Superhuman at $30/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mercury Reader or Superhuman?
Mercury Reader has a free tier; the other does not. Paid plans start at Free for Mercury Reader and $30/month for Superhuman.
Does Mercury Reader or Superhuman run on more platforms?
Mercury Reader runs on Chrome, Firefox, Edge. Superhuman runs on Web, iOS.
Can I use Mercury Reader for free?
Yes. Mercury Reader has a free tier, so you can try it without paying. Superhuman starts at $30/month.
What can Mercury Reader do that Superhuman cannot?
Mercury Reader covers Content extraction, Clean reading view, Custom themes, Font customization. Superhuman covers Blazing fast performance, Keyboard-first design, AI-powered triage, Split inbox.

Answered from the vendors’ own pages

Superhuman: How much does Superhuman cost?

Superhuman offers three plans: Starter at $30/user/month, Business at $40/user/month, and Enterprise with custom pricing. Annual billing provides approximately 16.7% savings, bringing the Starter plan to $25/month.

Source
Superhuman: What email platforms does Superhuman work with?

Superhuman is compatible with Gmail and Outlook, and integrates with Google Calendar and Akiflow for calendar and task planning workflows.

Source
Superhuman: Does the Business plan include CRM integrations?

Yes, the Business plan at $40/month unlocks CRM integrations with HubSpot and Salesforce, along with advanced AI features like Auto Drafts and Ask AI.

Source
Superhuman: What happened to Superhuman after the Grammarly acquisition?

Superhuman was acquired by Grammarly on July 1, 2025. The company now operates under the Superhuman name while integrating with Grammarly's AI platform.

Source
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