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Browser Extensions · head to head

ProWritingAid vs uBlock Origin

ProWritingAid logo

ProWritingAid

Browser Extensions

AI writing assistant and grammar checker

From
Free
Rated
-
Full reviewWebsite
uBlock Origin logo

uBlock Origin

Browser Extensions

Free, open-source ad content blocker

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ProWritingAid free plan limited to 500 word count with only 2 report runs per day; uBlock Origin cNAME uncloaking of third-party trackers disguised as first-party is only available on Firefox, because the required DNS API does not exist in Chromium
  • They diverge on capability: ProWritingAid covers Grammar checking, uBlock Origin covers Ad blocking.

Where they differ

Only the attributes on which ProWritingAid and uBlock Origin actually diverge.

Attributes where ProWritingAid and uBlock Origin differ
AttributeProWritingAiduBlock Origin
Pricing modelUnknownfree
PlatformsWeb, Windows, Mac, Chrome, Firefox, EdgeChrome, Firefox, Edge, Opera
Founded20132014

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Browser Extensions).

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 ProWritingAid

  • Grammar checking
  • Style analysis
  • Readability reports
  • Plagiarism checker
  • Safari support

Only in uBlock Origin

  • Ad blocking
  • Tracker blocking
  • Malware domain blocking
  • Custom filter lists
  • Opera support

Both cover

  • Chrome support
  • Firefox support
  • Edge support

What people use each for

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

ProWritingAid

  • Grammar and style checking for writers and authorsnot uBlock Origin
  • Story planning and structure analysisnot uBlock Origin
  • Character and manuscript analysis for fiction writersnot uBlock Origin
  • Integration with Microsoft Word, Google Docs, Scrivener, and Notionnot uBlock Origin

uBlock Origin

  • Blocking advertisements and third-party trackers in the browsernot ProWritingAid
  • Running a default-deny policy on third-party scripts and resourcesnot ProWritingAid
  • Element picking and cosmetic filtering of unwanted page contentnot ProWritingAid

Where each one falls short

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

ProWritingAid

  • Free plan limited to 500 word count with only 2 report runs per day
  • Advanced AI features (50 Sparks per day, Chapter Critiques) only in Premium Pro tier
  • Desktop apps for Mac and Windows; iOS/Android support limited to specific integrations
  • Yearly subscriptions significantly more cost-effective than monthly (67% savings)

uBlock Origin

  • CNAME uncloaking of third-party trackers disguised as first-party is only available on Firefox, because the required DNS API does not exist in Chromium
  • HTML filtering of response bodies requires the webRequest.filterResponseData API, which is only available in Firefox
  • On Chromium-based browsers uBO is not reliably ready at browser launch, so tracker and advertisement payloads can reach already-open tabs before filtering starts
  • Pre-fetch blocking is not reliable on Chromium-based browsers because they give websites precedence over user settings
  • The Chromium build does not use the WebAssembly filtering code paths, because the extra manifest permission would create friction publishing to the Chrome Web Store
  • LZ4 storage compression is Firefox only, and on Chromium in incognito mode IndexedDB resets, so uBO launches with out-of-date filter lists

Pricing, plan by plan

ProWritingAid

Free

No published plan breakdown. See the ProWritingAid review.

uBlock Origin

Free
  • FreeFree
    • Ad blocking
    • Tracker blocking
    • Custom filter lists

Which should you pick?

Choose ProWritingAid if

  • You need grammar checking.
  • You want to start without paying.
  • You work on Web, Windows, Mac, Chrome, Firefox, Edge.
  • You also want style analysis.
ProWritingAid review

Choose uBlock Origin if

  • You need ad blocking.
  • You want to start without paying.
  • You work on Chrome, Firefox, Edge, Opera.
  • You also want tracker blocking.
uBlock Origin review

Questions people ask

Is ProWritingAid or uBlock Origin better?
Neither clearly leads. ProWritingAid starts at Free and uBlock Origin at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ProWritingAid or uBlock Origin?
ProWritingAid starts at Free and uBlock Origin at Free.
Does ProWritingAid or uBlock Origin run on more platforms?
ProWritingAid runs on Web, Windows, Mac, Chrome, Firefox, Edge. uBlock Origin runs on Chrome, Firefox, Edge, Opera.
Can I use ProWritingAid for free?
Both have a free tier, so you can try either at no cost before committing.
What is ProWritingAid best used for?
ProWritingAid is most often used for grammar and style checking for writers and authors, story planning and structure analysis, character and manuscript analysis for fiction writers, integration with microsoft word, google docs, scrivener, and notion. Of those, grammar and style checking for writers and authors and story planning and structure analysis are not what uBlock Origin is typically brought in for.
What can ProWritingAid do that uBlock Origin cannot?
ProWritingAid covers Grammar checking, Style analysis, Readability reports, Plagiarism checker. uBlock Origin covers Ad blocking, Tracker blocking, Malware domain blocking, Custom filter lists. Both handle Chrome support, Firefox support, Edge support.
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