Grammarly Keyboard for Mobile: Is It Worth Using?

Tired of Embarrassing Mobile Typos? Here's Your Solution

We've all been there—sending a crucial text only to discover autocorrect transformed your message into something embarrassing or nonsensical. Writing mistakes can cost you credibility, clarity, and confidence in a world where so much communication happens on our phones.

The Grammarly Keyboard for iOS and Android brings professional-grade writing assistance directly to your fingertips. But is it worth downloading and potentially paying for? Let's find out.

FTC Disclosure: Bad Grammarian may receive compensation from companies whose products we feature, at no additional cost to you. We partner only with reputable and high-quality companies. Bad Grammarian is independently owned, and the opinions expressed here are our own.

What Makes Grammarly Keyboard Different from Your Default Keyboard?

Unlike the basic spell-checkers built into your phone, Grammarly Keyboard offers comprehensive writing support:

1. Real-time Error Detection That Works

As you type, the keyboard immediately identifies potential issues with:

• Grammar mistakes that standard keyboards miss
• Spelling errors beyond simple typos
• Punctuation problems that change your meaning

These corrections appear with red underlines, allowing you to fix issues before hitting send—not after your boss or client has already seen your mistake.

2. Writing Clarity Improvements (That Matter)

Blue underlines highlight sentences that could be clearer or more concise. This feature is invaluable when you're:

• Drafting professional emails between meetings
• Creating social posts that need to make an immediate impact
• Communicating complex ideas in limited space

For Grammarly Pro users, it even suggests complete sentence rewrites when your original message might confuse readers.

3. Tone and Engagement Enhancement

Have you ever sent a message that was too harsh or casual? Grammarly helps you strike the right tone with:

• Green underlines suggesting more engaging word choices
• Purple underlines indicating potential tone mismatches

This ensures that your message resonates appropriately, whether you're texting a friend, messaging a client, or creating content for your audience.

Seamless Integration Across Your Entire Mobile Experience

What truly sets Grammarly Keyboard apart is how it works everywhere you write. Once installed, it functions within:

• Email apps (Gmail, Outlook, Mail)
• Messaging platforms (WhatsApp, Messenger, SMS)
• Social media apps (Instagram, Twitter, Facebook)
• Productivity apps (Notes, Docs, Slack)

This universal integration means consistent writing quality across all your communication channels without switching between apps.

Getting Started Takes Just Two Minutes

For iPhone Users:

1. Download Grammarly Keyboard from the App Store
2. Go to Settings → General → Keyboard → Keyboards → Add New Keyboard
3. Select Grammarly Keyboard
4. Enable “Allow Full Access” for complete functionality

For Android Users:

1. Download Grammarly Keyboard from Google Play
2. Follow the on-screen instructions to enable the keyboard
3. Set it as your default keyboard when prompted

Once activated, the Grammarly logo appears in your text fields. Tap any underlined text to see suggestions, then apply fixes with a single tap.

Pro Tip: Add industry-specific terms and names to your personal dictionary so they're never flagged incorrectly.

Free vs. Pro: What's Worth Paying For?

The free version of Grammarly Keyboard handles basic corrections admirably, but Grammarly Pro unlocks capabilities that make a tangible difference for professionals, and is highly recommended:

What Pro Users Get:

• Full-sentence rewrites for maximum clarity and impact
• Vocabulary enhancements that make your writing more engaging
• Tone adjustments to ensure appropriate formality levels
• Fluency improvements that make your writing sound natural
• Consistency checks that maintain professional quality

For professionals whose success depends on effective communication, these features provide clear ROI by:

• Saving time on editing and revisions
• Preventing miscommunications that could cost you opportunities
• Presenting a consistently professional image across all platforms
• Building confidence in your mobile writing

Is Grammarly Keyboard Safe to Use? Privacy Considerations

Privacy concerns are natural and valid when considering a keyboard app that processes everything you type. Here's what you should know about Grammarly's approach to privacy:

Data Security Measures

• Encryption protection: All data transmitted to Grammarly servers is encrypted using TLS 1.2 during transit, and stored data is protected with AES256 encryption at rest
• Limited access: Grammarly employs a least-privilege model, meaning employees generally cannot view your personal data without a specific business reason
• Temporary retention: User-generated content is typically only retained in memory for up to 24 hours to provide consistent suggestions

User Control Over Data

• Personal data reports: You can request a complete report of what personal data Grammarly stores about you
• Application access control: You control which applications Grammarly can access
• Opt-out options: You can opt out of having your content used for training purposes (users in the EU, UK, and certain other regions are automatically opted out)

Third-Party Interactions

• Protected identity: When using generative AI features, your data is proxied through Grammarly so third-party LLMs don't receive your IP address or user ID
• Transparent permissions: Any connections to third-party applications require explicit opt-in consent
• Revocable access: You can revoke third-party credentials within the Grammarly client at any time

Grammarly has committed to never selling user data and emphasizes that you maintain control over where their software works and what information it can access.

Like any tool that processes your input, Grammarly Keyboard involves data transmission. However, its robust security measures and privacy controls make it a safe option for users. For a more comprehensive understanding, review Grammarly's official Privacy Policy before installation.

Real Results: Is Grammarly Keyboard Actually Worth It?

After extensively testing both versions, here's my honest assessment:

For casual users: The free version provides significant value, catching errors your standard keyboard misses and improving your basic writing clarity.

For professionals, content creators, and frequent writers: Grammarly Pro delivers meaningful advantages that justify its cost. The ability to craft polished, professional communication from anywhere provides a genuine competitive edge in today's mobile-first world.

The keyboard is responsive and intuitive and doesn't significantly impact typing speed once you're accustomed to it.

Also, read our Grammarly Free vs. Pro article for more insight.

The Bottom Line: Download Now, Decide on Pro Later

I recommend downloading the free Grammarly Keyboard today—you'll immediately notice improved writing quality across your mobile apps. After experiencing the basic functionality, consider a Grammarly Pro trial to evaluate whether the premium features deliver enough value for your needs.

Your mobile device is likely your most frequent writing tool. Isn't it time it helped you write at your best?

Download Grammarly Keyboard Today →