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Fixkey vs Grammarly

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Fixkey starts at $48, Grammarly at $12. Only Grammarly has a free tier.

FixkeymacOS hotkey that rewrites, translates or dictates text in whatever app you are typing in.GrammarlyGrammar, tone and rewriting help inside every app

Side by side

FactFixkeyGrammarly
CategoryGrammar & ProofreadingGrammar & Proofreading
Pricing modelPaidFreemium
Starts at$48 year$12 month
Public APINoNo
PlatformsmacOSWeb, Chrome Ext, Windows, macOS, iOS, Android
CompanyFixkeySuperhuman
Launched20242009
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Fixkey

The appeal is that it works in every Mac app rather than a walled editor, and dictation comes bundled instead of being sold separately. At 48 dollars a year it undercuts the usual writing-assistant subscriptions by a wide margin. The trade-off is a thin vendor: no company name, no address, and a single developer email in the footer.

Pros

  • Works system-wide in any macOS app rather than only a dedicated editor
  • Speech-to-text and translation across 180-plus languages sit behind the same key
  • Custom prompts let you pin the rewrite style
  • Flat 48 dollars a year with no per-seat tiering

Cons

  • macOS only: no Windows build and no browser extension
  • No named legal entity or address anywhere on the site
  • No free tier is advertised on the pricing page

Grammarly

Still the default for catching mistakes inside other people's software, but the free tier has quietly become an AI-prompt meter and the honest price is $30 unless you commit to a full year.

Pros

  • Runs inside the apps people already write in rather than as a separate editor
  • Free tier still covers spelling, grammar and tone detection with no time limit
  • Pro folds in plagiarism and AI-text detection that rivals charge for separately

Cons

  • The $12 headline is the annual rate; paying monthly costs $30
  • Free AI allowance is 100 prompts a month and depletes quickly
  • No public API, so it cannot be embedded in another product
  • Enterprise pricing is not published anywhere on the site

Which one fits

Choose Fixkey if you need

  • Mac users who want one shortcut for grammar and rewriting everywhere
  • People who dictate more than they type
  • Anyone who wants writing help without a monthly subscription

Choose Grammarly if you need

  • Anyone writing in a browser, Word or email who wants corrections in place
  • Teams enforcing a house style guide across people who are not writers
  • Non-native English speakers who want fluency rewrites, not just error flags

More comparisons

Browse all Grammar & Proofreading →