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Wordtune vs Write Tone

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. Wordtune starts at $4.89, Write Tone at $15.82. Both have a free tier. Only Write Tone ships a public API.

WordtuneSentence rewriter that keeps the meaning you intendedWrite ToneParaphraser, grammar checker and AI-text humaniser bundled with about 30 small writing tools.

Side by side

FactWordtuneWrite Tone
CategoryParaphrasing & RewritingAI Writing Assistants
Pricing modelFreemiumFreemium
Starts at$4.89 month$15.82 month
Public APINoYes
PlatformsWeb, Chrome ExtWeb, Chrome Ext, API
CompanyAI21 LabsIbranext Technologies
Launched20202023
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Wordtune

Wordtune still does the one thing it was built for better than the general assistants do, but its owner is in visible trouble and the product has not shipped news in two years. Cheap and useful today, risky as a dependency.

Pros

  • Rewrites preserve intent instead of paraphrasing into something else, which is the whole point
  • In-place browser extension avoids the copy-paste round trip
  • Cheapest tier is under $5 a month on annual billing

Cons

  • Parent AI21 Labs is in financial distress: a $300M round never closed, acquisition talks with NVIDIA and then Nebius, and reported layoffs above 60%
  • The product blog has not been updated since June 2024 and the site footer still reads 2025
  • AI21's own site no longer mentions Wordtune anywhere, suggesting it is no longer a strategic product
  • Free tier's 10 rewrites a day is exhausted in a single editing session

Write Tone

Good value if you actually use several of the tools - unlimited paraphrasing, grammar checking and summarising for about $16 a month undercuts buying them separately. The honesty problem is that the same subscription sells plagiarism detection and a detector-evasion rewriter side by side, which tells you who the real customer is. Treat the 637,000-user claim as marketing.

Pros

  • Around 90 tone presets on the paraphraser, across 50+ languages
  • Grammar checking, summarising and plagiarism checking included in the same plan
  • Chrome extension and Microsoft Word integration, not web-only
  • Documented API endpoint for programmatic access
  • Free tier is a real 100,000 characters a month rather than a trial

Cons

  • Sells detector-evasion and plagiarism detection in the same subscription
  • No company country or registered address published
  • Free tier carries ads and throttles the humaniser and summariser
  • Tool count is inflated by many near-identical single-purpose pages

Which one fits

Choose Wordtune if you need

  • Non-native English writers who need a sentence to read naturally, not be rewritten wholesale
  • Anyone editing inside Gmail, Docs or LinkedIn who wants suggestions in place
  • Light users, since the free tier is genuinely usable for occasional rewriting

Choose Write Tone if you need

  • Students and writers who want paraphrasing plus grammar checking in one subscription
  • Non-native writers adjusting tone across many languages
  • People who want a Chrome extension rather than another browser tab

More comparisons

All Wordtune alternatives →All Write Tone alternatives →Browse all Paraphrasing & Rewriting →