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Grammarly vs Knowee

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. Grammarly starts at $12, Knowee at $6.99. Both have a free tier.

GrammarlyGrammar, tone and rewriting help inside every appKnoweeAI essay-writing assistant for outlines, citations, and writing suggestions, formerly known as StudyGPT.

Side by side

FactGrammarlyKnowee
CategoryGrammar & ProofreadingEssay & Assignment Help
Pricing modelFreemiumFreemium
Starts at$12 month$6.99 month
Public APINoNo
PlatformsWeb, Chrome Ext, Windows, macOS, iOS, AndroidWeb, Chrome Ext
CompanySuperhumanxBuddy.ai Limited
Launched2009—
Last verifiedSep 6, 2026Sep 1, 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

Knowee

Knowee's specific focus on outlines and citation checking, rather than just generating a finished essay outright, is a more defensible pitch for a tool marketed at students worried about academic integrity. The free plan is real, but this is still fundamentally an essay-assistance tool, and how an individual instructor or institution treats its use is outside the product's control.

Pros

  • Distinct focus on outlines and citation verification rather than just full essay generation
  • Available both as a website and a Chrome extension
  • Free plan exists alongside a lower-cost paid tier for heavier use

Cons

  • Company discloses an operating entity name but no confirmed headquarters country
  • Positioning around 'real academic sources' is a marketing claim that is not independently verifiable from the site alone
  • Use of any AI essay tool carries academic integrity risk that depends entirely on institutional policy, not the product

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 Knowee if you need

  • Students who want help structuring an essay and verifying citations rather than a finished essay written for them
  • Users who already want a Chrome extension for in-browser writing help

More comparisons

All Knowee alternatives →Browse all Grammar & Proofreading →