How Many Devices Can You Use Grammarly On? (2026 Full Answer)
By SM Mehedi Hasan
You can use Grammarly on up to 5 devices simultaneously with one account, whether free or paid.
This applies across Windows, Mac, iPhone, iPad, and Android. Logging into a sixth device while five are active triggers an error, requiring you to log out of one before proceeding.
If you write across multiple machines, the device limit question matters before you install Grammarly on every machine.
Most people have at least a work computer, a personal laptop, a phone, and sometimes a tablet. Four devices. You’re already close to the limit without thinking about it.
This guide covers the official 5-device limit in full detail, breaks down every platform Grammarly supports, explains the document and word limits that also apply, and walks you through how to manage your device list when you need to swap one out.
Table Of Contents
How Many Devices Can You Use Grammarly On at Once?
The official limit is five devices per Grammarly account. This applies to both free and paid plans. You can be signed in to Grammarly on up to 5 devices at the same time, across different operating systems and device types.
So if you have your work PC, a personal MacBook, an iPhone, an iPad, and a shared family tablet all using the same Grammarly account, that’s exactly five. Adding a sixth device while all five are active causes an error.
Grammarly won’t automatically log you out of an existing device. It just blocks the new login until you sign out of one of the five.
Official Source
This limit comes directly from Grammarly’s official support page titled “How many devices can I use Grammarly on?” which states: “Your membership allows access to Grammarly on up to five different devices.”
This applies identically to free accounts and paid Pro accounts.
What Counts as a Device?
This is where most people get confused, and most competitor articles get vague. Here’s how Grammarly counts devices in practice.
Each physical device is one slot. A browser extension installed on Chrome on your Windows laptop counts as a single device, even though Chrome itself is technically a separate application.
If you also install the Grammarly desktop app on that same Windows laptop, that counts as a separate installation but on the same device. The device, not the app, is what Grammarly counts.
What also matters: the browser extension you install on Chrome at home, and the Chrome extension on a different computer are two separate device slots, even though both are “Chrome extensions.”
The physical machines are different, so they count separately.
Windows PC (desktop app) | Yes | One slot per machine |
Mac (desktop app) | Yes | One slot per machine |
iPhone | Yes | iOS 17 or newer required |
iPad | Yes | Separate slot from iPhone |
Android phone | Yes | Android 9.0 or newer required |
Android tablet | Yes | Tablets supported |
Browser extension (Chrome, Edge, Firefox, Safari) | Yes (per machine) | Counts as one slot for that computer |
Grammarly Editor (grammarly.com) | No separate slot | Web access through any browser, no slot consumed |
Second browser on same computer | Same device | Multiple browsers on one PC = one slot |
One important detail nobody mentions in competing articles: accessing Grammarly through the web editor at app.grammarly.com in your browser does not consume a device slot.
The five-device limit applies to the installed apps and browser extensions.
If you’re at someone else’s computer and just want to quickly check a document, logging into the Grammarly Editor on the web won’t occupy one of your five slots.
What Platforms Does Grammarly Support?
Five device slots are the limit, but it helps to know every surface you could install Grammarly on before deciding how to allocate them.
Desktop Platforms
- Windows: The Grammarly desktop app requires Windows 10 (build 1903) or newer. It works system-wide across Microsoft Word, Outlook, Slack, Notepad, and any other desktop application where you type.
- Mac: The Grammarly desktop app requires macOS Sierra (10.12) or newer. Same system-wide functionality as Windows. The Mac app also enables Grammarly in native Mac apps where the browser extension can’t reach.
Browser Extensions
- Google Chrome: Available in the Chrome Web Store. Works across Gmail, Google Docs, LinkedIn, WordPress, and practically any site where you type.
- Microsoft Edge: Available in the Edge Add-ons store. Works the same as Chrome since Edge is based on Chromium.
- Mozilla Firefox: Available in Firefox Add-ons. Slightly less consistent on some sites compared to Chrome, but supports most major platforms.
- Safari: Available on Mac and iPhone. On iPhone, the Safari extension is bundled with the Grammarly iOS app and requires iOS 17 or newer.
Mobile Platforms
- iPhone/iPod Touch: Requires iOS 17 or later. The iOS app includes the Grammarly keyboard (a custom keyboard replacement), the Grammarly Editor for drafting and editing documents, and Safari integration. iPhone and iPad are counted as separate device slots even if they share the same Apple ID.
- iPad: Separate app from iPhone. Requires iOS 17 or newer. Includes the keyboard, a dedicated iPad editor, and a Safari extension.
- Android phones and tablets: Requires Android 9.0 or newer. Works as a keyboard replacement across all Android apps. The Grammarly keyboard integrates into any app that uses the soft keyboard, including WhatsApp, Gmail, Chrome, and social media apps.
Pro Tip
If you have a Windows laptop and a Mac, you only need two of your five device slots to cover the desktop. Add an iPhone for mobile writing, and you’ve used three. That leaves two slots for a tablet or a second work machine.
Mapping out which devices matter most to your actual writing workflow before installing them everywhere helps you stay well within the limit without stress.
How to Add Grammarly to a New Device
- Check how many device slots you currently have in use. Sign in to your Grammarly account at account.grammarly.com. Look for device or account settings to see active sessions.
If you’re near the five-device limit, decide which device you’ll remove before adding the new one. - Download the right version for your platform. For Windows or Mac, go to grammarly.com/desktop. For iPhone or iPad, search “Grammarly” in the App Store.
For Android, search “Grammarly” in the Google Play Store. For browser extensions, go to grammarly.com/browser and select your browser. - Install the application. Follow the installation prompts for your platform. Desktop apps require administrator permissions on Windows; Mac apps install directly to your Applications folder.
- Sign in with your existing account. You do not need to create a new account or purchase a new subscription. Your existing account credentials work across all five devices.
Signing in automatically activates your plan’s features on the new device. - Test that it’s working. On a desktop, open any app and start typing. Look for the Grammarly floating widget or system tray icon. On mobile, go to your keyboard settings and enable Grammarly as the active keyboard.
On the browser, look for the Grammarly icon in the toolbar and test in a text field.
What to Do If You've Hit the 5-Device Limit
Hitting the limit results in an error when you try to log in to a sixth device. The message explains you’ve reached the maximum and tells you to sign out of another device first.
There’s no option to temporarily override or purchase a higher device cap as an add-on.
To free up a slot, sign out of the device you want to remove. On a desktop, that means opening Grammarly settings and choosing Sign Out. On mobile, go to the Grammarly app settings and tap Sign Out.
On a browser extension, click the Grammarly icon in the toolbar and select Sign Out from your account menu.
If you can’t access the old device, such as a laptop you no longer have, contact Grammarly support and explain the situation. They can remove specific devices from your active session list on the backend.
This isn’t widely advertised, but it is possible through a support ticket.
Watch Out
Signing out of a device removes your active session on that device, but it does not uninstall the Grammarly app. If you’re removing access from a device you’re giving to someone else, also uninstall the app completely.
A signed-out session on an old device means they cannot access your account, but having the app present is still a cleaner practice.
Are There Other Usage Limits Beyond the Device Cap?
Most people searching for the device limit don’t realize Grammarly also caps how much you can check within a time period. These limits are separate from the 5-device rule and apply to both free and paid accounts.
So here’s the non-obvious insight that almost no competing guide surfaces: the document and word limits are identical for free and paid plans. Upgrading to Pro doesn’t give you more documents or more words per month.
The only usage limit that actually changes when you upgrade is the AI prompt allocation. Everything else caps at the same level regardless of what you pay.
For most users, 150,000 words per month and 300 documents per 30 days is genuinely more than enough.
But high-volume content teams or people running batch document checks need to know this ceiling exists.
Can You Share One Grammarly Account Across Multiple People?
Grammarly’s terms of service don’t permit account sharing between different people.
The five-device limit is intended for a single person using multiple devices, not for a household or team sharing a single subscription. Each team member needs their own account or seat.
For teams, the Pro plan supports up to 149 members under one subscription, with centralized billing and admin controls. That’s the correct path for multi-person access, not sharing credentials.
Sharing an account across multiple users also means your writing suggestions, personal dictionary, and tone preferences are combined, creating noisy, less useful feedback.
Family or Household Use
Grammarly doesn’t offer a family plan. Each person needs their own account. If two people in a household both want Grammarly, they each create their own free or paid account. The five-device limit applies per account holder, not per household.
In My Experience
How I Use All Five Slots Without Thinking About It
Honestly, when I first realized the limit was five devices, I thought it would never be an issue.
Then I counted: work Windows laptop, personal MacBook, iPhone, iPad, and one more Chrome extension on a desktop I sometimes use at a co-working space.
That’s five. Exactly at the limit, with no room to add anything else without swapping something out first. What I didn’t expect was how differently Grammarly behaves across platforms.
The desktop app on Windows gives the smoothest experience for long-form writing in Word and Outlook, since it integrates at the system level rather than as a browser layer.
The iPhone keyboard is fine for quick edits on the go, but the suggestion cards are smaller and harder to review than on a desktop. And the iPad editor is genuinely useful for reviewing longer documents when you don’t want to be at a computer.
The frustration I ran into was at a conference where I was using a borrowed laptop and couldn’t add Grammarly because all five slots were full.
The web editor at app.grammarly.com was the solution that day, and it worked without touching any device slot. That’s a genuinely useful escape hatch that most people don’t know exists until they’re stuck without it.
One observation: Grammarly’s suggestions are consistent across platforms for grammar and spelling. But the AI features like full rewrites and tone adjustment are noticeably less usable on the mobile keyboard.
The interface for reviewing and accepting AI suggestions on a phone screen is cramped enough that I rarely bother. For AI-heavy work, the desktop is where Grammarly Pro clearly earns its cost.
Workflow Example: Setting Up Grammarly Across a Typical Multi-Device Setup
Here’s a realistic setup for someone who writes professionally across multiple devices.
- Work Windows laptop (Device 1): Install the Grammarly desktop app. This covers Word, Outlook, Slack, Teams, and any browser on that machine under one slot.
Don’t also install the Chrome extension separately on this machine; the desktop app already handles browser coverage. - Personal MacBook (Device 2): Install the Grammarly Mac desktop app. Same system-wide coverage. This replaces the need for separate browser extensions on the Mac as well.
- iPhone (Device 3): Install from the App Store. Enable the Grammarly keyboard in Settings > General > Keyboard. Use it across all apps: Messages, Gmail, social media, and Notes.
- iPad (Device 4): Install the iPad-specific Grammarly app from the App Store. Enable the keyboard. Use the iPad editor to review and edit longer documents you’ve been working on.
- Fifth slot saved as a flex slot: Keep it open for a temporary situation, such as a borrowed device, a new computer you’re setting up, or a shared family device that occasionally needs writing checks.
You can always log in for a session and log out after, keeping the slot available.
This setup provides full coverage across your primary writing surfaces without exceeding the limit. The Grammarly web editor at app.grammarly.com handles any situations where you’re on a device that isn’t one of your five.
Pro Tip
Don’t install the browser extension separately on a computer that already has the Grammarly desktop app. The desktop app automatically covers browser activity.
Installing both creates a redundant setup and could potentially confuse which interface is controlling suggestions on a given page. One installation per machine is cleaner and leaves your fifth device slot genuinely free.
Common Mistakes When Setting Up Grammarly on Multiple Devices
- Install both the desktop app and the browser extension on the same computer. They work differently and can occasionally conflict with each other.
The desktop app covers browsers on that machine. Pick one and stick with it per machine to avoid interface confusion. - Forgetting about old devices that are still counted in your five. A laptop you no longer use still occupies a slot if you never signed out.
Sign out of any device before retiring it. If you can’t access it anymore, contact Grammarly support to remove it from your session list. - Assuming the web editor counts against your device limit. It doesn’t. Access via app.grammarly.com in any browser is free of the five-device cap.
This is a useful fallback that people overlook precisely when they need it most. - Sharing account credentials with family members. This violates Grammarly’s terms and creates a messy experience in which multiple people’s writing is processed under the same preferences, dictionary, and settings.
Each person should have their own account. - Not accounting for tablets as separate devices. iPhone and iPad are different device slots even when they’re tied to the same Apple ID and share apps. If you have both, they each count as one of your five.
Frequently Asked Questions
Up to 5 devices simultaneously. This limit applies to both the free plan and the Pro paid plan. Trying to sign into a sixth device while five are active will produce an error until you log out of one first.
No. Both free and paid Grammarly accounts allow up to 5 devices. The only usage limit that changes when you upgrade from free to Pro is the monthly AI prompt allowance, from 100 to 2,000.
Yes. Sign in to app.grammarly.com in a browser on any computer. Web access does not count toward your 5-device limit. Only installed apps and browser extensions registered to your account consume device slots.
Sign out of one of your existing devices first. Open the Grammarly app or extension on the device you want to remove, then sign out. Once that slot is free, sign in on the new device. Contact support if you can’t access the old device.
Yes, but iPhone and iPad are counted as separate device slots. If you install Grammarly on both, that uses two of your five slots. Both require iOS 17 or newer and are managed under the same Grammarly account.
Is an SEO Specialist and AI Tools Researcher with over 4 years of hands-on experience in search engine optimization. As the founder of Smart AI Helper Pro, he tests and reviews AI writing, SEO, and marketing tools to help creators and business owners grow faster with practical, research-backed strategies.
