Skip to content
effecthub

Grammarly vs Manzoni

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.

The short answer

Entry price
Grammarly from $12/mo, Manzoni from $59 once — different billing units, so no direct winner
Free plan
Both have one
Higher Trust score
Grammarly — 94 vs 75 for Manzoni
Best fit
Grammarly: Anyone writing in a browser, Word or email who wants corrections in place · Manzoni: Mac users who write across many apps and want one consistent assistant
Platforms
Grammarly: Web, Chrome extension, Windows, macOS, iOS, Android · Manzoni: macOS

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

GrammarlyGrammar, tone and rewriting help inside every appManzoniMac writing helper that summarizes, rewrites, and translates text locally across 10+ apps, without a subscription.

Side by side

FactGrammarlyManzoni
CategoryGrammar & ProofreadingAI Writing Assistants
Pricing modelFreemiumFreemium
Starts at$12/mo$59 once
Trust score94 / 10075 / 100
PlatformsWeb, Chrome extension, Windows, macOS, iOS, AndroidmacOS
CompanySuperhumanGems Platforms, Inc.
Launched2009—
Last verifiedOct 16, 2026Oct 15, 2026

What our research says

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

Manzoni

Manzoni's pitch is processing everything locally on the Mac instead of sending text to a cloud model, paired with a one-time $59 price instead of yet another writing subscription. The tradeoff is that it only works inside its list of supported apps and only on macOS, so it is not an option for Windows users or apps outside that list.

Pros

  • All processing happens on-device rather than through a cloud service
  • One-time $59 payment instead of a recurring subscription
  • Works inside 10+ existing apps via hotkey rather than requiring a separate editor
  • No account or signup required to use it

Cons

  • macOS only, with no Windows, Linux, or mobile version
  • Free tier is capped at just 3 documents and 10 daily requests, which is thin for real evaluation

Which one fits

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

Choose Manzoni if you need

  • Mac users who write across many apps and want one consistent assistant
  • Anyone who would rather pay once than subscribe monthly for writing help
  • Users concerned about sending drafts to a cloud AI service

Grammarly vs Manzoni: the questions people ask

Is Grammarly cheaper than Manzoni?

They charge in different units, so there is no like-for-like answer: Grammarly starts at $12/mo, Manzoni at $59 once. Entry price is the lowest paid plan as we last verified it.

Does Grammarly or Manzoni have a free tier?

Both: Grammarly has a free tier, and Manzoni has a free tier.

More comparisons

All Manzoni alternatives →Browse all Grammar & Proofreading →