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Grammarly vs TextGlow

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

Cheaper paid plan
TextGlow — $4.99/mo vs $12/mo for Grammarly
Free plan
Both have one
Higher Trust score
Grammarly — 94 vs 72 for TextGlow
Best fit
Grammarly: Anyone writing in a browser, Word or email who wants corrections in place · TextGlow: Anyone who writes frequently in Gmail, Slack, or LinkedIn and wants quick tone changes
Platforms
Grammarly: Web, Chrome extension, Windows, macOS, iOS, Android · TextGlow: Web, Chrome extension

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 appTextGlowChrome extension that rewrites a draft into one of ten tones in about a second, inside Gmail, Slack or LinkedIn.

Side by side

FactGrammarlyTextGlow
CategoryGrammar & ProofreadingParaphrasing & Rewriting
Pricing modelFreemiumFreemium
Starts at$12/mo$4.99/mo
Trust score94 / 10072 / 100
PlatformsWeb, Chrome extension, Windows, macOS, iOS, AndroidWeb, Chrome extension
CompanySuperhumanTextGlow
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

TextGlow

Textglow does one thing narrowly well: rewrite whatever is already typed into a different tone without switching tabs, across ten preset tones from professional to flirty. At $4.99 a month it is priced as an impulse purchase rather than a serious productivity subscription, and the free tier's 10-rewrites-a-day limit is generous enough to actually test it.

Pros

  • Works directly inside Gmail, Slack, LinkedIn, and other sites without copy-pasting
  • 10 distinct tone options from professional to flirty
  • Sub-one-second response time claimed for rewrites
  • No signup required for the free tier, and no text is stored

Cons

  • Free tier caps rewrites at 800 characters, too short for longer emails
  • No company or founder name disclosed anywhere on the site

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 TextGlow if you need

  • Anyone who writes frequently in Gmail, Slack, or LinkedIn and wants quick tone changes
  • Non-native English speakers wanting a fast tone check before sending
  • Users who want a cheap, narrow tool rather than a full writing suite

Grammarly vs TextGlow: the questions people ask

Is Grammarly cheaper than TextGlow?

On published entry prices, TextGlow starts lower — $4.99/mo against $12/mo for Grammarly. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Grammarly or TextGlow have a free tier?

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

More comparisons

Browse all Grammar & Proofreading →