Can I use Undetectable AI and Grammarly together?

Yes, many teams use both tools together for different purposes. Use the Stack Builder section above to combine Undetectable AI and Grammarly with other tools and save your AI toolkit.

Does Undetectable AI or Grammarly have a free plan?

Undetectable AI is available for free with a free trial. Grammarly is available for free with a free trial. Always verify current pricing directly with the vendor.

Undetectable AI vs Grammarly

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Updated May 2026

Undetectable AI

Undetectable Inc.

Detect AI-generated content and humanize text to bypass AI detectors.

0.0(0)

FREEMIUM

89% data quality

Grammarly

Work with an AI partner that helps turn your thoughts into clear, credible writing.

0.0(0)

FREEMIUM

96% data quality

Trust & Reliability

Undetectable AI

Users:10M-50M

Grammarly

Customers (per vendor):Zoom, Databricks, Atlassian +7

GDPR

SOC 2

Overall Winner: Grammarly

7.0/10 vs Undetectable AI at 5.8/10

Leads in:

Support

Integrations

AI Comparison Summary

Undetectable AI

5.8

avg score

Grammarly

7.0

avg score

Grammarly leads overall — particularly in Support & Ecosystem and Integration Power.

Undetectable AI has an edge in Customizability.

Based on 6 dimensions

How scores are calculated

Overall Winner

Grammarly

7.0 / 10

Undetectable AI

Best For

Verifying content authenticity for bloggers and writers

Ensuring originality in academic submissions for students

Optimizing content for search engines for SEO professionals

Reviewing student work for AI use for educators

Not Ideal For

Users seeking a comprehensive AI writing assistant with advanced editing features beyond humanization

Organizations requiring deep integrations with specific content management systems for automated workflows

Users who need to manage social media content directly through the tool

Grammarly

Best For

Improving professional communication for business teams

Ensuring academic integrity for students and institutions

Streamlining content creation for marketers

Enhancing customer support responses for service teams

Not Ideal For

Users needing a dedicated AI model development platform

Complex data analysis or visualization tasks

Graphic design or video editing workflows

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Undetectable AI is best for

💻Coding & Dev7.0🎨Image & Design7.0✍️Writing & Content5.8

Grammarly is best for

💻Coding & Dev7.0🎨Image & Design7.0🤖Automation & Agents7.0

Filter by your use case:

Pros & Cons

Undetectable AI

Pros

Rated #1 AI Detector by Forbes with 99%+ accuracy in independent tests
Provides collective AI detection results from multiple major checkers
Offers a free AI detector tool without signup
Includes a powerful AI humanizer to make content undetectable
Supports over 50 languages for detection and humanization
Available as a convenient Chrome browser extension

Cons

No explicit mention of data export formats for user-generated content
Specific details on the proprietary AI models used for humanization are not fully disclosed
No explicit integrations with third-party content management or writing platforms
No dedicated documentation or knowledge base, only a contact form for help

Grammarly

Pros

Works across over 1 million apps and websites, including major browsers and desktop apps
Offers comprehensive writing assistance from grammar to tone and generative AI
Provides enterprise-grade security and privacy with SOC 2 Type II and HIPAA compliance
Includes team collaboration features like style guides and brand tones for consistency
Free plan available for basic grammar and spelling checks

Cons

Advanced features and unlimited AI prompts require a paid subscription
No explicit API for third-party developers to integrate core Grammarly functionality
Limited data export options beyond viewing personal data
May not fully replace human editors for highly nuanced or creative writing tasks
Requires an active internet connection for full functionality

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Output Quality5

Value for Money5

Customizability5

Support & Ecosystem5

Integration Power5

Dimension Comparison

Undetectable AI

5.8

/ 10

Grammarly

7.0

/ 10

Clear winner

Dimension Breakdown

Ease of Use

How easy it is to get started and use daily

Undetectable AI

8.0

Grammarly

8.0

Output Quality

Quality and accuracy of generated results

Undetectable AI

9.0▲ +1.0

Grammarly

8.0

Value for Money

Cost vs. features and output quality

Undetectable AI

8.0▲ +1.0

Grammarly

7.0

Customizability

Calculated

Ability to tailor to specific needs

Undetectable AI

5.0▲ +2.0

Grammarly

3.0

Support & Ecosystem

Documentation, community, and support quality

Undetectable AI

4.0

Grammarly

8.0▲ +4.0

Integration Power

Calculated

Ability to connect with other tools and workflows

Undetectable AI

1.0

Grammarly

8.0▲ +7.0

Calculated = derived from verified integration count and API/open-source signals. AI = LLM-assessed from public website content. Methodology

Task Performance

Undetectable AI

Task

Grammarly

7.0

Blog Writing

7.0

Article Generation

7.0

Seo Optimization

5.0

3.0

Content Research

6.0

Headline Creation

7.0

5.0

Content Repurposing

6.0

7.0

Tone Adaptation

9.0

4.0

Multi Format Output

6.0

2.0

Collaboration Workflow

8.0

5.0

Template Library

6.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

Which is better, Undetectable AI or Grammarly?

Both are strong options. Undetectable AI has a rating of 0.0/5 (0 reviews), while Grammarly has a rating of 0.0/5 (0 reviews). The best choice depends on your specific use case, budget, and workflow requirements.

Is Undetectable AI cheaper than Grammarly?

Undetectable AI starts at $5/month (freemium model) with a free trial. Grammarly starts at free (freemium model) with a free trial. Use the Cost Calculator above for a detailed estimate.

What are the main differences between Undetectable AI and Grammarly?

Undetectable AI — "Detect AI-generated content and humanize text to bypass AI detectors.". Grammarly — "Work with an AI partner that helps turn your thoughts into clear, credible writing.". Key differences include their pricing models, platform support, integrations, and technical capabilities. See the Feature Comparison table above for a complete side-by-side breakdown.

Explore Alternatives

Undetectable AI Alternatives

Tools similar to Undetectable AI

Grammarly Alternatives

Tools similar to Grammarly

Compare More AI Tools

Use our comparison tool to compare up to 5 AI tools side-by-side with AI-powered recommendations.