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ParagraphAI vs Wordtune

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. ParagraphAI starts at $24.99, Wordtune at $4.89. Both have a free tier.

ParagraphAIKeyboard-level writing help for phones, browser and email repliesWordtuneSentence rewriter that keeps the meaning you intended

Side by side

FactParagraphAIWordtune
CategoryAI Writing AssistantsParaphrasing & Rewriting
Pricing modelFreemiumFreemium
Starts at$24.99 month$4.89 month
Public APINoNo
PlatformsWeb, iOS, Android, Chrome ExtWeb, Chrome Ext
CompanyParagraphAI Inc.AI21 Labs
Launched20222020
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

ParagraphAI

The keyboard is the whole argument: if you write serious volume from a phone it beats copy-pasting into a chatbot. On desktop it is hard to justify $24.99 a month against Grammarly or a general LLM subscription that does more.

Pros

  • Native iOS and Android keyboard works inside any app, not just a web editor
  • 40+ languages with per-user fluency settings
  • Free tier is workable for light use at five uses per action per day
  • Annual billing halves the effective rate to $12.49 a month

Cons

  • $24.99 on monthly billing sits above Grammarly's consumer tier for a narrower feature set
  • 10,000-character input cap even on Pro, which rules out long documents
  • No developer API, and team controls only exist on the custom Enterprise plan
  • Marketing leans on unverifiable Fortune 500 adoption claims

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

Which one fits

Choose ParagraphAI if you need

  • Heavy mobile emailers and messagers
  • Non-native English speakers wanting tone and formality control while typing
  • Sales and support reps replying from a phone between meetings
  • Anyone who needs inline translation mid-conversation

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

More comparisons

All ParagraphAI alternatives →All Wordtune alternatives →Browse all AI Writing Assistants →