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Browser Extensions · head to head

LanguageTool vs Rakuten

LanguageTool logo

LanguageTool

Browser Extensions

Grammar and spell checker for 25+ languages

From
Free
Rated
-
Full reviewWebsite
Rakuten logo

Rakuten

Browser Extensions

Get cash back on every purchase

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: LanguageTool free tier limited to basic spelling and simple punctuation; advanced punctuation and style issues caught only on premium; Rakuten minimum withdrawal amount of $5.01 creates friction for light users
  • They diverge on capability: LanguageTool covers Multi-language support, Rakuten covers Cash back rewards.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which LanguageTool and Rakuten actually diverge.

Attributes where LanguageTool and Rakuten differ
AttributeLanguageToolRakuten
Pricing modelfreemiumfree
PlatformsWeb editor, Windows desktop app, macOS desktop app, Chrome extension, Firefox extension, Edge extension, Safari extension, Opera extension, Google Docs, Microsoft Word, iOS appBrowser Extension (Chrome, Firefox, Safari, Edge)
Founded20031999

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Browser Extensions).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in LanguageTool

  • Multi-language support
  • Grammar checking
  • Style suggestions
  • Personal dictionary
  • Opera support

Only in Rakuten

  • Cash back rewards
  • Coupon codes
  • In-store offers
  • Price comparisons

Both cover

  • Chrome support
  • Firefox support
  • Edge support
  • Safari support

What people use each for

The jobs each tool is most often brought in to do.

LanguageTool

  • Grammar and spelling correction across web and desktopnot Rakuten
  • Style and clarity improvementsnot Rakuten
  • Multilingual writing assistancenot Rakuten

Rakuten

  • Cash back on online purchases from partner retailersnot LanguageTool
  • Cash back on in-store purchases using linked cardsnot LanguageTool

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

LanguageTool

  • Free tier limited to basic spelling and simple punctuation; advanced punctuation and style issues caught only on premium
  • Picky Mode (advanced typography) unavailable on free plan
  • Specific pricing not displayed on main page; requires navigation to purchase flow

Rakuten

  • Minimum withdrawal amount of $5.01 creates friction for light users
  • Quarterly payout schedule only, with months-long delays between earning and receiving payments
  • Amazon cashback limited to specific categories at 1-3% rates
  • Must click through Rakuten link first or cashback does not register

Pricing, plan by plan

LanguageTool

Free
  • BasicFree
    • 2,000 character limit per text
    • 3 AI paraphrasing requests per day
    • Basic grammar and spelling checks
  • Premium$null/month
    • 150,000 character limit per text
    • Unlimited AI paraphrasing
    • 20,000+ grammar and style checks
  • Teams$null/month
    • Per-user, per-month pricing
    • 2-1000+ users
    • Team Style Guide

Rakuten

Free

No published plan breakdown. See the Rakuten review.

Which should you pick?

Choose LanguageTool if

  • You need multi-language support.
  • You want to start without paying.
  • You work on Web editor, Windows desktop app, macOS desktop app, Chrome extension, Firefox extension, Edge extension, Safari extension, Opera extension, Google Docs, Microsoft Word, iOS app.
  • You also want grammar checking.
LanguageTool review

Choose Rakuten if

  • You need cash back rewards.
  • You want to start without paying.
  • You work on Browser Extension (Chrome, Firefox, Safari, Edge).
  • You also want coupon codes.
Rakuten review

Questions people ask

Is LanguageTool or Rakuten better?
Neither clearly leads. LanguageTool starts at Free and Rakuten at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, LanguageTool or Rakuten?
LanguageTool starts at Free and Rakuten at Free.
Does LanguageTool or Rakuten run on more platforms?
LanguageTool runs on Web editor, Windows desktop app, macOS desktop app, Chrome extension, Firefox extension, Edge extension, Safari extension, Opera extension, Google Docs, Microsoft Word, iOS app. Rakuten runs on Browser Extension (Chrome, Firefox, Safari, Edge).
Can I use LanguageTool for free?
Both have a free tier, so you can try either at no cost before committing.
What is LanguageTool best used for?
LanguageTool is most often used for grammar and spelling correction across web and desktop, style and clarity improvements, multilingual writing assistance. Of those, grammar and spelling correction across web and desktop and style and clarity improvements are not what Rakuten is typically brought in for.
What can LanguageTool do that Rakuten cannot?
LanguageTool covers Multi-language support, Grammar checking, Style suggestions, Personal dictionary. Rakuten covers Cash back rewards, Coupon codes, In-store offers, Price comparisons. Both handle Chrome support, Firefox support, Edge support, Safari support.

Answered from the vendors’ own pages

LanguageTool: Does LanguageTool have a free version?

Yes, LanguageTool Basic is free with a 2,000 character limit per text field and 3 AI paraphrasing requests per day for basic grammar and spelling checks.

Source
Rakuten: Does Rakuten charge membership fees?

No. Rakuten is completely free to join and use. There are no membership fees, setup fees, or any charges to members. Rakuten's revenue comes from merchant commissions, not user fees.

Source
LanguageTool: What does LanguageTool Premium offer?

LanguageTool Premium increases the character limit to 150,000 per text field, provides unlimited AI paraphrasing, and includes 20,000+ advanced grammar and style checks. Multiple billing options are available including monthly, quarterly, annual, and 2-year plans.

Source
Rakuten: Is there a cost to use the Rakuten browser extension or mobile app?

No, both the browser extension and mobile app are free to download and use at no cost.

Source
LanguageTool: Does LanguageTool offer a money-back guarantee?

Yes, LanguageTool provides a 14-day money-back guarantee on all Premium packages with no period of notice required; cancel anytime.

Source
Rakuten: How does Rakuten make money if it's free?

Brands partner with Rakuten and pay commissions to bring them customers. Rakuten shares a portion of these commissions with members as cash back rewards.

Source
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