Copilot in Outlook vs LanguageTool
Copilot in Outlook and LanguageTool sit in the same category and share 1 task. The verdict below is calculated for each role from the tasks, the role fit and the price.
Short answer
Copilot in Outlook wins for 10 of 20 roles in our data. Copilot in Outlook starts at $20/mo; LanguageTool publishes no fixed price.
Verdict by role
| Role | Better choice | Why |
|---|---|---|
| Accountant | LanguageTool | part of the role's core toolkit; works for free; has a free plan |
| Lawyer | LanguageTool | part of the role's core toolkit; works for free; has a free plan |
| HR manager | LanguageTool | works for free; has a free plan |
| Finance manager | Copilot in Outlook | built for this role |
| Manager | Copilot in Outlook | covers 5 of this role's tasks against 2 |
| Marketer | Copilot in Outlook | covers 5 of this role's tasks against 2 |
| Sales manager | Copilot in Outlook | covers 5 of this role's tasks against 2 |
| Data analyst | Copilot in Outlook | built for this role |
| Teacher | Copilot in Outlook | covers 5 of this role's tasks against 2 |
| Executive assistant | Either one | even on tasks, LanguageTool is cheaper to start |
| Logistics manager | Either one | even on tasks, LanguageTool is cheaper to start |
| Procurement manager | LanguageTool | works for free; has a free plan |
| Secretary | Copilot in Outlook | covers 5 of this role's tasks against 2; part of the role's core toolkit |
| Recruiter | Either one | even on tasks, LanguageTool is cheaper to start |
| HR administrator | LanguageTool | works for free; has a free plan |
| Tax consultant | LanguageTool | covers 3 of this role's tasks against 2; works for free; has a free plan |
| Auditor | Either one | even on tasks, LanguageTool is cheaper to start |
| Economist | Copilot in Outlook | built for this role |
| Project manager | Copilot in Outlook | covers 5 of this role's tasks against 2 |
| Social media manager | Copilot in Outlook | covers 5 of this role's tasks against 2 |
Side by side
| Copilot in Outlook | LanguageTool | |
|---|---|---|
| Vendor | Microsoft | LanguageTooler GmbH |
| Category | Documents and writing | Documents and writing |
| Free plan | No | Yes: Checks of fragments up to 10,000 characters at a time, basic grammar and spelling rules |
| Cheapest paid plan | Included in Copilot Pro, $20/mo | price on request |
| Top plan | Included in Microsoft 365 Copilot, $30/mo | price on request |
| Tasks covered | 5 | 3 |
Copilot in Outlook: Summaries of long email threads, reply drafts and meeting prep right in Outlook.
LanguageTool: Grammar and style checks in more than thirty languages in the browser, Word and Google Docs.
Tasks both handle
Only Copilot in Outlook covers
- Clear your morning inbox in half an hour
- Find a meeting time with several participants
- Log incoming correspondence with a short summary
- Plan your week in the calendar with focus blocks
Only LanguageTool covers
Pitfalls to watch at work
Copilot in Outlook
- A thread summary misses attachments and late edits in quoted text: check amounts and dates in the email itself
- The reply draft picks up the tone of the previous email, including a sharp one: reread before sending
- A personal Copilot Pro subscription on a work mailbox takes company email outside its tenant: work mail needs a business license
LanguageTool
- The extension sends text to the service's servers for checking: for documents with trade secrets check your company policy or use a corporate plan with processing in Europe
- Accounting and legal terminology is often flagged as an error: add the terms to your personal dictionary instead of accepting every correction
FAQ
Is Copilot in Outlook or LanguageTool better for work?
In our data Copilot in Outlook is the better choice for 10 of 20 roles. The table above shows the reason for each role.
Which is cheaper, Copilot in Outlook or LanguageTool?
Copilot in Outlook starts at $20/mo; LanguageTool publishes no fixed price.
Do Copilot in Outlook and LanguageTool have free plans?
Copilot in Outlook: No. LanguageTool: Yes. Checks of fragments up to 10,000 characters at a time, basic grammar and spelling rules.
Compare Copilot in Outlook with
- Copilot in Outlook vs Gemini in Gmail
- Copilot in Outlook vs Superhuman
- Copilot in Outlook vs ChatGPT
- Copilot in Outlook vs Copilot in Word
- Copilot in Outlook vs Gemini in Google Docs
Compare LanguageTool with
- LanguageTool vs Copilot in Word
- LanguageTool vs ChatGPT
- LanguageTool vs Claude
- LanguageTool vs Gemini in Google Docs
- LanguageTool vs Gemini in Gmail
Alternatives to Copilot in Outlook · Alternatives to LanguageTool · Copilot in Outlook pricing · LanguageTool pricing
AI tools weekly for your role
One email a week: new tools, price changes and one tested prompt for your job. Free, unsubscribe in one click.