COMPARISON · Last verified: September 2026

Wordtune vs Grammarly

An AI rewriting tool vs a real-time grammar and tone checker, compared on verified plans, prices and features.

Grammarly official demo

Grammarly's official video, Find and Add Citations Fast With Grammarly.

Grammarly

►

Official video via YouTube (Grammarly), embedded for reference. ToolChase does not host or claim this video.

What is Wordtune?

Wordtune is an AI writing assistant from AI21 Labs, built around rephrasing. You highlight a sentence, or switch to paragraph mode, and it offers a list of alternative rewrites. It switches text between casual and formal tones with one click and can lengthen or shorten sentences. Smart Synonyms suggest context-aware word swaps, and Contextual Suggestions can continue your text, expand a point or add supporting examples. Paid plans add Ask AI for tailored tone, style and structure suggestions. Wordtune also corrects spelling and grammar, with unlimited checks even on the free plan, and summarizes documents, articles, webpages and YouTube videos. It can only write in English, but it accepts text in ten other languages, including Spanish, Mandarin, Arabic and Hindi, and gives you English back, which its help center pitches at non-native English speakers. It runs as a web editor, as extensions for Chrome, Edge, Firefox and Arc, and as an iPhone app with a keyboard. The company reports more than 10 million users.

What is Grammarly?

Grammarly is an AI writing assistant that flags spelling and grammar mistakes and gives tone feedback as you type, across more than 1 million apps and sites. It runs as a browser extension for Chrome, Safari, Edge and Firefox, as a desktop app for Windows and Mac that also works in Microsoft Office apps, and on iPhone, iPad and Android. The free plan fixes spelling and grammar, shows how your tone comes across and includes 100 AI prompts a month. Pro adds full-sentence rewrites, tone adjustment, fluency and inclusive-language suggestions, plagiarism detection, the AI Detector agent and 2,000 AI prompts per member a month, plus team tools such as a style guide, brand tone and team analytics for up to 149 members. Grammarly also offers AI agents for specific tasks, such as a Proofreader, Paraphraser, AI Grader and Citation Finder, and says most of its agents can be tried on the free plan. Real-time writing support covers more than 20 languages, and Grammarly says over 40 million people and 50,000 organizations trust it. Since October 29, 2025, its parent company has been called Superhuman.

Key differences at a glance

Both tools rewrite text and check grammar. The differences that matter most are these:

• -- Main job: Wordtune is built around rephrasing what you have written, with a list of rewrites to pick from; Grammarly is built around flagging mistakes and tone issues as you type.
• -- Where it works: Grammarly covers Chrome, Safari, Edge and Firefox, desktop apps for Windows and Mac, and iPhone, iPad and Android; Wordtune covers its web editor, Chrome, Edge, Firefox, Arc and iPhone. Wordtune's help center says Android is not yet supported and its extension is not currently compatible with Safari.
• -- Free plans: Wordtune Basic caps rewrites and AI suggestions at 10 a day but has unlimited spelling and grammar checks; Grammarly Free includes 100 AI prompts a month, and its plan table keeps full-sentence rewrites and tone adjustment for Pro.
• -- Price: Wordtune's paid plans cost $6.99 to $9.99 a month billed annually, against $12 per member for Grammarly Pro. Billed monthly, Wordtune costs $13.99 to $19.99, against $30 for Pro on grammarly.com or $15 for the Superhuman suite's Pro.
• -- Languages: Grammarly offers real-time writing support in more than 20 languages; Wordtune writes only in English, though it accepts text in 10 other languages.
• -- Teams: Grammarly Pro covers up to 149 members with a shared style guide and team analytics; Wordtune Business is currently limited to existing accounts.
• -- Score: Grammarly rates 4.7/5 in our review; Wordtune rates 4.4/5.

Feature-by-feature comparison

Here is how Wordtune and Grammarly compare on the capabilities that affect daily use:

Pricing comparison

Wordtune sells three personal plans. Basic is free: 10 rewrites and AI suggestions a day, 3 AI summaries a month and unlimited spelling and grammar checks. Advanced costs $6.99 a month billed annually, or $13.99 billed monthly, for 30 rewrites and AI suggestions a day, 15 AI summaries a month and unlimited AI recommendations. Unlimited costs $9.99 a month billed annually, or $19.99 billed monthly, and removes the caps, adding vocabulary, clarity and fluency improvements and premium support. Paid plans start with a 3-day free trial that asks for payment details, Wordtune does not offer refunds, and students, educators with a valid .edu email and nonprofits get 30% off. The help center notes that prices can vary by region or promotion. Wordtune Business, for teams of three or more, is priced by the number of users, but the help center says it currently supports only existing Business accounts, a pause it calls temporary.

Grammarly lists Free, Pro and Enterprise on grammarly.com. Pro is priced per member: $12 a month billed annually ($144 a year), $60 every three months, or $30 billed monthly, according to Grammarly's help center, and one Pro plan covers 1 to 149 members. Enterprise is custom-priced and adds SAML single sign-on, SCIM, data loss prevention and unlimited AI prompts. The Superhuman suite also sells Grammarly: its Pro plan (Grammarly, Docs and Go) lists the same $12 per member a month billed annually but $15 billed monthly, and its Business plan adds Superhuman Mail at $33 per member a month billed annually or $40 monthly. Grammarly offers free Pro trials from time to time.

What the entry paid plan buys. Wordtune Advanced triples the free rewrite allowance (10 to 30 a day), raises summaries from 3 to 15 a month and unlocks Ask AI. Grammarly Pro unlocks features its plan table marks as unavailable on Free, such as full-sentence rewrites, tone adjustment and plagiarism checks, adds the AI Detector agent and raises AI prompts from 100 a month to 2,000 per member.

A worked example. A solo writer paying yearly spends $83.88 on Wordtune Advanced or $119.88 on Unlimited (12 × $6.99 or $9.99), against $144 for Grammarly Pro. A five-person team on Grammarly Pro pays $720 a year (5 × $144) and shares a style guide, brand tone and team analytics. That team cannot start a new Wordtune Business plan right now, so it would need five separate Unlimited subscriptions ($599.40 a year in total), each billed on its own: Wordtune's plans page does not include centralized billing in Basic, Advanced or Unlimited.

Bottom Line

Wordtune and Grammarly both rewrite text and check grammar, but they suit different jobs. Grammarly (4.7/5) fits writers and teams who want mistakes and tone issues flagged as they type, on more platforms and in more languages, with plagiarism detection on Pro, from $12 per member a month billed annually. Wordtune (4.4/5) is the better value when rephrasing is the main need: a list of rewrites per sentence or paragraph, casual and formal versions and English output from ten input languages, from $6.99 a month billed annually. Both have free plans, so you can test each on your own writing before paying.

📚 Related