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The Antidote Insider’s Guide

Everything we know about Antidote in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.

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ToolGPAOctober 2026

Antidote

The Insider’s Guide

Grammar corrector, dictionaries and language guides in one

Antidote, as pictured on antidote.info

Every plan, grade, refund rule and rival among writing tools, read from Antidote’s own pages.

Made by Druide informatique · checked Oct 9, 2026 · toolgpa.com

2.4GPA

Contents

  1. 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
  2. 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
  3. 03What it doesIts main features, where it runs, what it works with and who makes it
  4. 04Where it standsIts grades against its category, and whether to keep it or make your own
  5. 05The alternativesThe tools it is most often weighed against, side by side
  6. 06Quick answersThe questions people ask about it, each answered in a line or two
  7. 07About ToolGPAWho made this guide, what else is on the site, and how to cite it

ToolGPA put this guide together from Antidote’s own pages, its app-store listings and our grades. Every fact in it is on Antidote’s page too, where it is kept up to date. Checked Oct 9, 2026.

Part 01 · Overview

Welcome

What it is, who it suits, its grades and the ten things to know first

2.4

GPA, above 20 of the 69 other writing tools we grade

Antidote is writing assistance software from the Quebec company Druide informatique that combines a grammar and style corrector with dictionaries and language guides for English and French. Individuals buy it as Antidote+, an annual subscription covering three applications: Antidote 12 for Windows and Mac, Antidote Web in a browser, and Antidote Mobile for iPhone and iPad. Connectors link the corrector to word processors, mail clients, browsers and other software.

To get you started, here are 9 things to know about Antidote, taken from its own pages and our grades.

Once it's wired in, fixes land in the original document.
From our grade for ease of use
  1. 1

    Best for grammar checking in English and French

    But it's one yearly bill in Canadian dollars with no monthly option or refunds, both languages cost more, and there's no Android app.

  2. 2

    What it costs

    Paid plans start at CA$59.95 for the first year, then CA$48 per year (Antidote+ Personal).

  3. 3

    You can try it first

    30-day free trial of Antidote+ with all three applications: Antidote 12, Antidote Web and Antidote Mobile.

  4. 4

    It runs on 4 platforms

    Web, macOS, Windows and iOS, with a browser extension too.

  5. 5

    Corrector

    Flags spelling, grammar and typography errors with a tooltip explaining each one, and its filters pick out repetition and non-inclusive wording.

  6. 6

    Reformulation

    A subscription-only mode that uses generative AI trained by Druide's linguists to rewrite, retouch, soften or shorten a passage or a segment of it.

  7. 7

    Dictionaries

    Definitions link on to synonyms, antonyms, word combinations, conjugations and word families, with audio pronunciation for subscribers.

  8. 8

    A 2.4 GPA, above 20 of 69

    That is against the other writing tools we grade, on value, the free plan, features, ease of use and platforms.

  9. 9

    Keep it

    Nothing Antidote does is plain enough to make in a weekend. The 4 things listed below take a company.

Antidote at a glance

Pricing
Free trial, from CA$59.95 for the first year, then CA$48 per year (Antidote+ Personal)
Free plan
No
Free trial
30-day free trial of Antidote+ with all three applications: Antidote 12, Antidote Web and Antidote Mobile.
Runs on
Web, macOS, Windows, iOS, Browser extension
Made by
Druide informatique, since 1996
Category
Writing Tools
Our grade
2.4 GPA, fair

The report card

Best for grammar checking in English and French

Antidote is a grammar checker for English and French with dictionaries and language guides built in, and it explains why each error is wrong. CA$59.95 covers your first year on Windows, Mac, the web and iPhone. But it's one yearly bill in Canadian dollars with no monthly option or refunds, both languages cost more, and there's no Android app.

ToolGPA report cardAntidoteGraded Oct 10, 2026
SubjectGradeComment
Value for moneyBAntidote+ Personal is CA$59.95 for the first year and CA$48 a year after, which is about CA$4 a month for all three apps. That's inside the cheaper quarter of this category, where the line is $5.00 a month. One language only at that price, and both costs CA$89.95.
Free plan and trialCNo free version at all. What you get is a 30-day trial of Antidote+ with all three apps, and the listing doesn't say a card is needed. After that it's the yearly subscription or nothing, and store purchases aren't refundable.
FeaturesCA corrector that explains every error, dictionaries with synonyms and conjugations, 578 language guides, AI reformulation and an email check that catches a missing attachment. The listing names the gap, though: Antidote Mobile has no corrector of its own, so the phone app can't do the main job.
Ease of useCNo store rating on record, and it isn't quite install-and-go: to get corrections inside Word, Outlook, Gmail or Google Docs you install the separate Connectix utility and hook up each application. Once it's wired in, fixes land in the original document.
Platforms and integrationsBWindows, Mac, a browser app and iPhone and iPad, with connectors to more than 90 applications, Word, Outlook, Google Docs and Gmail among them. No native Android app though, so it misses the A: Android and Linux users are stuck in Antidote Web.
Grade point averageFair, out of 4.02.4

An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.

Who Antidote is for

  • Fits if you write in both English and French and want one corrector for the two
  • Works for families, since one subscription covers 5 people under the same roof

Who it is not for

  • Skip it if you'd rather pay monthly, as it's one yearly bill and store purchases aren't refundable
  • Not for you if you write on an Android phone, where it's Antidote Web in a browser and nothing else
  • Pricey if you need both languages, at CA$89.95 against CA$59.95 for one
  • Watch out: Antidote Mobile has no corrector of its own, and Word or Gmail need the separate Connectix utility
  • Watch out: prices are in Canadian dollars, plus taxes where they apply

Good to know

Good for

  • People who write in both English and French
  • Editors and translators who want explanations with each correction
  • Families: one subscription covers five users
  • Organizations that need a corrector installed without external servers

Worth knowing

  • Druide's store lists prices in Canadian dollars, plus taxes where applicable.
  • The subscription is billed once a year with no monthly option, and store purchases are not refundable.
  • English and French are separate: one language is included, and having both costs CA$89.95 instead of CA$59.95.
  • There is no native Android app. Android, Chromebook and Linux users work in Antidote Web, and Antidote Mobile has no corrector of its own.

Part 02 · Pricing

What it costs

Every plan, the free plan, ways to pay less and how prices have moved

$59.95/yr

To start

Antidote is a paid product with a free trial, starting at CA$59.95 for the first year, then CA$48 per year (Antidote+ Personal).

After that it's the yearly subscription or nothing, and store purchases aren't refundable.
From our grade for free plan and trial

  • Antidote+ Personal, one language

    CA$59.95

    first year, in Canadian dollars; CA$48 per year on renewal

    One-year subscription for 1 user to all three applications, with the corrector, dictionaries and guides for English or French.

  • Antidote+ Personal, English and French

    CA$89.95

    first year, in Canadian dollars; CA$72 per year on renewal

    The Personal subscription with both languages, adding translations for 2.8 million words and expressions.

  • Antidote+ Family, one language

    CA$99.95

    first year, in Canadian dollars; CA$80 per year on renewal

    One-year subscription for up to 5 family members living under the same roof. Additional users do not need an email address.

  • Antidote+ Family, English and French

    CA$149.95

    first year, in Canadian dollars; CA$120 per year on renewal

    The Family subscription for 5 users with both languages and the 2.8 million translations.

  • Organizations

    Custom

    From 5 devices or users by quote: Antidote 12 per-device licenses, Antidote Web subscriptions or Antidote Pro, priced by tiers.

Trying it first

30-day free trial of Antidote+ with all three applications: Antidote 12, Antidote Web and Antidote Mobile.

Read from antidote.info on Oct 9, 2026.

Ways to pay less

  • Other savings

    Lower price on renewal

    Antidote+ costs less from the second year: Personal with one language is CA$59.95 for the first year and CA$48 on renewal, and Family CA$99.95 then CA$80.

    Stated on antidote.info

  • Education

    Preferential pricing and site licenses for schools

    Druide's organizations page says schools get preferential pricing and can buy a site license, with quotes available on request.

    Stated on antidote.info

  • Other savings

    Upgrade discount for owners of earlier editions

    People who already own an earlier edition of Antidote are offered a discounted switch to Antidote+ through the store's upgrade options.

    Stated on antidote.info

What the app costs elsewhere

Each country’s App Store price for “Subscription to AMO – French”, against $8.99 in the United States, in dollars at the day’s rate. The four cheapest and the four dearest of 11.

CountryPrice thereIn dollarsAgainst the US
Turkey₺65,99$1.3485% less
BrazilR$ 36,90$7.3718% less
Philippines₱ 469.00$7.4717% less
IndonesiaRp 139ribu$7.7714% less
Australia$14.99$10.4616% more
Germany9,99 €$11.1925% more
Mexico$209.00$11.4828% more
United Kingdom£8.99$11.8932% more

Part 03 · Features

What it does

Its main features, where it runs, what it works with and who makes it

5

Places it runs: Web, macOS, Windows, iOS and Browser extension

Grammar corrector, dictionaries and language guides in one. Here is what it does, as its own site describes it, and what it covers: works offline, AI features, grammar & style.

The listing names the gap, though: Antidote Mobile has no corrector of its own, so the phone app can't do the main job.
From our grade for features
Corrector
Flags spelling, grammar and typography errors with a tooltip explaining each one, and its filters pick out repetition and non-inclusive wording.
Reformulation
A subscription-only mode that uses generative AI trained by Druide's linguists to rewrite, retouch, soften or shorten a passage or a segment of it.
Dictionaries
Definitions link on to synonyms, antonyms, word combinations, conjugations and word families, with audio pronunciation for subscribers.
Language guides
578 articles cover grammar, style, spelling and punctuation, and the corrector's tooltips link to the article that explains the rule in question.
Anti-Oops! for email
Steps in when Send is clicked to prompt a final check of the email, confirm that the intended attachments are included, and flag wording that may be badly received.
Connectors to other software
The free Connectix utility links Antidote 12 or Antidote Web to more than 90 applications, so corrections are applied in the original document.

Where it runs

  • Web
  • macOS
  • Windows
  • iOS
  • Browser extension

What it works with

  • Microsoft Word
  • Outlook
  • Google Docs
  • Gmail
  • LibreOffice
  • Adobe InDesign
  • Visual Studio Code
  • WordPress

Antidote is made by Druide informatique, and has been around since 1996.

Part 04 · Standing

Where it stands

Its grades against its category, and whether to keep it or make your own

20/69

Other writing tools it is graded above

Antidote's GPA of 2.4 is higher than 20 of the 69 other writing tools we grade, and level with 11.

It stands best on value for money (B, above 35 of 69) and worst on features (C, above 0).

Each grade against the category

Every bar is all 70 writing tools we grade, cut by the letter each got. Antidote’s own letter is outlined.

  • BValue for moneyAbove 35 of 69
  • CFree plan and trialAbove 5 of 69
  • CFeaturesAbove 0 of 69
  • CEase of useAbove 1 of 69
  • BPlatforms and integrationsAbove 32 of 69

Keep it, or make your own?

Whether this is something you could build for yourself with an AI app builder, and what you would give up.

Keep it

Nothing Antidote does is plain enough to make in a weekend. The 4 things listed below take a company.

That makes this kind of software worth paying for, not this one in particular: 38 of the 69 other writing tools grade higher.

What you could not

  • Grammar checking as you type, wherever you type.
  • Apps for macOS, Windows and iOS that stay in step with each other.
  • It plugs into other products, Microsoft Word, Outlook and Google Docs among them.
  • AI features, unless you pay a model provider for each request yourself.

What this rests on. Antidote’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.

Part 05 · Alternatives

The alternatives

The tools it is most often weighed against, side by side

LanguageTool, Grammarly, ProWritingAid, DeepL Write and Hemingway Editor

The 5 tools Antidote is most often weighed against, with where each one differs from it.

  • 2.8GPA

    LanguageTool

    Free plan · from $4.99/mo

    Grammar and style checker for more than 30 languages.

    • LanguageTool has a free plan. Antidote does not, though it has a free trial.
    • LanguageTool is open source and self-hostable, according to its own site.
    Antidote and LanguageTool compared in full
  • 3.0GPA

    Grammarly

    Free plan · from $12/mo

    Writing assistant for grammar, tone and rewrites in any app.

    • Grammarly has a free plan. Antidote does not, though it has a free trial.
    • Only Grammarly lists an Android app.
    • Grammarly also covers AI agents, citations and documents.
    Antidote and Grammarly compared in full
  • 2.6GPA

    ProWritingAid

    Free plan · from $10/mo

    Grammar, style and story-critique toolkit for book writers.

    • ProWritingAid has a free plan. Antidote does not, though it has a free trial.
    • Only Antidote lists an iOS app.
    • ProWritingAid also covers long-form writing.
    Antidote and ProWritingAid compared in full
  • 2.6GPA

    DeepL Write

    Free plan · from €6.99/mo

    AI writing assistant for corrections, rephrasing and tone.

    • DeepL Write has a free plan. Antidote does not, though it has a free trial.
    • Only DeepL Write lists an Android app.
    Antidote and DeepL Write compared in full
  • 2.4GPA

    Hemingway Editor

    Free plan · from $8.33/mo

    Readability editor that flags wordy, hard-to-read sentences.

    • Hemingway Editor has a free plan. Antidote does not, though it has a free trial.
    • Only Antidote lists an iOS app.
    • Only Antidote lists a browser extension.
    Antidote and Hemingway Editor compared in full

Part 06 · Questions

Quick answers

The questions people ask about it, each answered in a line or two

14

Questions, each answered in a line or two

The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.

Is Antidote free?

No, Antidote is a paid product, but you can try it first. 30-day free trial of Antidote+ with all three applications: Antidote 12, Antidote Web and Antidote Mobile.

How much does Antidote cost?

Antidote lists 5 plans. Antidote+ Personal, one language: CA$59.95 first year, in Canadian dollars; CA$48 per year on renewal.

What platforms does Antidote work on?

Antidote is available on Web, macOS, Windows and iOS. It also has a browser extension.

Does Antidote offer any discounts?

Antidote publicly lists the following: Lower price on renewal; Preferential pricing and site licenses for schools; Upgrade discount for owners of earlier editions.

Does Antidote have an Android app?

No Android app was listed when its pages were read on Oct 9, 2026. Antidote is listed for Web, macOS, Windows and iOS.

Does Antidote have a Linux app?

No Linux app was listed when its pages were read on Oct 9, 2026. Antidote is listed for Web, macOS, Windows and iOS.

Is Antidote open source?

Antidote is not described as open source on its own site, as read on Oct 9, 2026.

Does Antidote work offline?

Yes, according to its own site. What works without a connection differs by plan and platform, so check the vendor's page for the detail.

What does Antidote integrate with?

Antidote's listing names Microsoft Word, Outlook, Google Docs, Gmail, LibreOffice, Adobe InDesign, Visual Studio Code and WordPress.

Does Antidote have a student discount?

Preferential pricing and site licenses for schools. Druide's organizations page says schools get preferential pricing and can buy a site license, with quotes available on request.

Who makes Antidote?

Antidote is made by Druide informatique. It dates from 1996.

What are the alternatives to Antidote?

The closest alternatives to Antidote in our directory are LanguageTool, Grammarly, ProWritingAid, DeepL Write and Hemingway Editor.

How does Antidote compare with other writing tools?

Antidote's GPA of 2.4 is higher than 20 of the 69 other writing tools we grade, and level with 11.

Could I make my own version of Antidote?

Nothing Antidote does is plain enough to make in a weekend. The 4 things listed below take a company.

Where this guide comes from

The prices, plans, platforms and features were read from Antidote’s own pages on Oct 9, 2026, and the grades were given on Oct 10, 2026. Graded from this listing, whose facts were read from Antidote's own pages on 9 October 2026. Also tested with a demo account on 2026-02-12.

Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Druide informatique. Prices change, so check antidote.info before you buy.

Part 07 · About

About ToolGPA

Who made this guide, what else is on the site, and how to cite it

3,189

Tools graded, in 94 categories

ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.

Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.

  • 3,189

    tools graded

  • 94

    categories

  • 426

    price changes on record

  • 579

    apps priced in 12 countries

What else is on toolgpa.com

Scan for the live page

Prices and grades as they are today

Quoting this guide?

Please name ToolGPA and link to the live page, so readers can check the figures for themselves:

ToolGPA, "Antidote: The Insider's Guide", checked Oct 9, 2026. https://toolgpa.com/tools/antidote

Know someone choosing between writing tools?

Send them this guide: toolgpa.com/tools/antidote/guide

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See our other guides

The best-graded writing tools after Antidote, each with an Insider's Guide of its own.

ToolGPA

Choosing software? Every tool graded, every price dated.

Compare tools at toolgpa.com ›

Everything in this guide is ToolGPA’s own summary of what Antidote’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Antidote is a trademark of its owner, and this guide is not made, paid for or approved by Druide informatique. Prices and plans change: check antidote.info before you buy.