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Browser Extensions · head to head

Mercury Reader vs Postmark

M

Mercury Reader

Browser Extensions

Clear clutter from articles instantly

From
Free
Rated
-
Full reviewWebsite
Postmark logo

Postmark

Marketing

No hidden fees, no guesswork. Just the features you need, at a price that makes sense

From
Free
Rated
-
Full reviewWebsite

The short version

  • 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; Postmark free tier caps at 100 emails per month with no overages allowed

Where they differ

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

Attributes where Mercury Reader and Postmark differ
AttributeMercury ReaderPostmark
Pricing modelfreefreemium
PlatformsChrome, Firefox, EdgeWeb
CategoryBrowser ExtensionsMarketing
Founded2015Unknown

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 Mercury Reader

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

Only in Postmark

Nothing recorded that Mercury Reader does not also cover.

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

Postmark

  • Free tier caps at 100 emails per month with no overages allowed
  • Basic plan ($15/mo) includes 10,000 emails then charges $1.80 per 1,000 extra; Pro and Platform tiers have their own lower per-1,000 overage rates ($1.30 and $1.20), so cost scales per email beyond the included volume
  • Custom high-volume pricing above the published tiers requires contacting sales

Pricing, plan by plan

Mercury Reader

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

Postmark

Free

No published plan breakdown. See the Postmark review.

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 Postmark if

  • You want to start without paying.
Postmark review

Questions people ask

Is Mercury Reader or Postmark better?
Neither clearly leads. Mercury Reader starts at Free and Postmark at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mercury Reader or Postmark?
Mercury Reader starts at Free and Postmark at Free.
Does Mercury Reader or Postmark run on more platforms?
Mercury Reader runs on Chrome, Firefox, Edge. Postmark runs on Web.
Can I use Mercury Reader for free?
Both have a free tier, so you can try either at no cost before committing.
What can Mercury Reader do that Postmark cannot?
Mercury Reader covers Content extraction, Clean reading view, Custom themes, Font customization.
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