Lex vs Wordtune

Lex

• Writers who want AI feedback on a draft instead of generated text
• People looking for a simpler shared-document editor with AI built in
• Trying several AI models on the same piece without separate subscriptions

Wordtune

• Non-native English speakers polishing emails and messages
• Rephrasing sentences inside Gmail, Google Docs and other web apps
• Students and researchers who want short summaries of articles and videos

Lex

• Free accounts get 30 Ask Lex messages a day, 5 saved-prompt runs a month and a small daily AI budget; premium models need Lex Pro.
• Lex Pro's AI use is metered: the plan includes $30 of AI credits a month, and heavier use can be covered by overage credits sold at cost.
• Lex runs in a desktop or mobile browser. An iOS app is offered to Pro subscribers as early access, and no desktop app is listed.
• Track changes is marked as coming soon on the homepage.

Wordtune

• Wordtune writes in English only; other languages are supported only as input to translate into English.
• Basic stops at 10 rewrites a day and 3 summaries a month, and Advanced is still capped at 30 a day and 15 a month. Only Unlimited removes the caps.
• The site lists a web editor, Chrome and Edge extensions and an iPhone app. No Mac, Windows or Android app is listed.
• Wordtune does not offer refunds, and the 3-day trial needs payment details up front.

Lex

Ask Lex

A chat panel for feedback, rewrites and brainstorming on the open document. Highlighting text, or tagging @Lex in a comment, asks about one passage. The AI model can be switched.

Checks

Runs line edits for brevity, grammar, readability and more, shown as highlights in the document. Clicking one shows the suggested edit and the reason for it.

Custom prompts and context

Saved prompts can be reused in Ask Lex and Checks and shared with others. Style guides and knowledge bases give the AI a voice to follow and background to draw on.

Versions and Rewind

Versions are named save points for trying another approach. Rewind is a timeline at the top of a document for scrubbing through past changes and restoring an earlier state.

Live collaboration and comments

A shared link gives edit or view-only access, with co-editing in real time and comment threads. Lex Teams is a paid add-on for unlimited group use of shared folders.

Export and API

Documents export to Word, PDF, Markdown, HTML and LaTeX, and an API can create, list and update documents with a key generated in settings.

Wordtune

Rewrite

Offers a list of alternative phrasings for selected text to choose from. Free accounts get 10 rewrites a day; the vendor's FAQ says paid accounts can also rewrite whole paragraphs at a time.

Tone and length controls

Switches text between casual and formal, or shortens and expands it. The FAQ lists tone and length changes among the features that need a paid account.

Spelling and grammar checks

Flags spelling and grammar errors and suggests corrections. These checks are unlimited on every plan, including the free Basic plan.

Summarizer

Summarizes articles, documents, web pages and YouTube videos, with section summaries, a library of saved items and notes. 3 summaries a month on Basic, 15 on Advanced.

AI writing suggestions

Generates text that continues a draft, explains a point or adds a conclusion, and links any fact it cites to its source. The FAQ says the Spices suggestions are limited to Google Docs and the web editor.

Translate into English

Text written in Spanish, Mandarin, Arabic, Hindi, Korean, Hebrew, Russian, German, French or Portuguese can be turned into English rewrite suggestions.

Lex

• Free$0

  Documents, sharing and live collaboration with 30 Ask Lex messages a day, 5 saved-prompt runs a month and a small daily AI budget.

• Lex Pro$14.99

  per month, billed yearly ($179.88); $24.99 billed monthly

  Premium AI models, $30 of included AI credits a month, much higher usage limits, priority support, early access to new features and a money-back guarantee.

Wordtune

• Basic$0

  10 rewrites and AI suggestions a day, 3 AI summaries a month, and unlimited spelling corrections and grammar checks.

• Advanced$6.99

  per month, billed annually ($13.99 billed monthly)

  30 rewrites and AI suggestions a day, 15 AI summaries a month, and unlimited AI recommendations, spelling corrections and grammar checks.

• Unlimited$9.99

  per month, billed annually ($19.99 billed monthly)

  Unlimited rewrites, AI suggestions and summaries, plus vocabulary, clarity and fluency suggestions and premium support.

Lex

• Annual discount

  40% less with yearly billing

  Lex Pro billed yearly is $179.88, which works out to $14.99 a month against $24.99 when billed monthly.

• Education

  Discounted pricing for students and academics

  Lex says it offers discounted pricing for students and academics, arranged by emailing the company. The size of the discount is not published.

• Nonprofit

  Discounted pricing for nonprofits

  Lex says it offers discounted pricing for nonprofit organizations, arranged by emailing the company. The size of the discount is not published.

Wordtune

• Annual discount

  50% off with annual billing

  The plans page marks annual billing as 50% off: Advanced is $6.99 a month billed annually against $13.99 billed monthly, and Unlimited is $9.99 against $19.99.

• Education

  30% discount for students and educators

  Students and educators with a valid .edu email address can apply for 30% off annual or monthly plans. The academic discount is valid for 12 months.

• Nonprofit

  30% discount for nonprofits and NGOs

  People working for a nonprofit or NGO can apply for 30% off annual or monthly plans. It applies to future invoices only and cannot be combined with other discounts.