Every single day, more than 7.5 million blog posts go live across the internet, which is no surprise considering the sheer number of AI content generation tools we have at hand.
Search engines, however, have grown wary of low-quality, automatic, and plagiarized content, and anything that does not satisfy Google’s strict rules does not get indexed, let alone rank at high positions.
InkForAll AI Content Shield promises to catch AI-written text and plagiarism before you publish your content.
It is built on smart content detection technology, which sounds really great on paper, but does it really work as well as it says?
To find out, I put the tool to the test in a head-to-head comparison with Undetectable AI Plagiarism Checker and SEO Writing tool.
Continue reading to see what I found!
Key Takeaways
- InkForAll’s content shield is an AI and plagiarism detector solution marketed under InkForAll’s suite of tools.
- The tool uses natural language optimization technology to make long-form content discoverable and protect it from plagiarism penalties.
- When tested against the Undetectable AI Plagiarism checker and AI SEO content Writer, InkForAll did not impress us. Its price point does not justify slow processing times and inaccuracy in AI and plagiarism detection.
What Is InkforAll AI?
INKforAll is an all-in-one content creation and optimization platform where you write, rank, and protect your content in one place. It is used by over a million users worldwide.
INK was founded in 2017 by Alexander De Ridder, Michael Umansky, and Gary Haymann out of the realization that Google’s algorithms were becoming smarter at detecting meaning in content.
Alexander, who began programming at 13 after receiving his first computer in Bruges, Belgium, thought that neural networks would revolutionize search.
Never Worry About AI Detecting Your Texts Again. Undetectable AI Can Help You:
- Make your AI assisted writing appear human-like.
- Bypass all major AI detection tools with just one click.
- Use AI safely and confidently in school and work.
He developed INK with Natural Language Optimization (NLO) technology, which aimed to make content discoverable and conversation-ready.
Now, Content Shield is INK’s exclusive prevention, detection, and mitigation tool.
Key Features Overview
InkForAll’s Content Shield tool promises several notable features.
- Content Shield continuously scans your writing in the background, and it flags any sections carrying AI “fingerprints” that could trigger search engine filters
- It protects from duplicate content penalties by ensuring your text isn’t accidentally duplicating existing sources
- It also gives clear, specific instructions on how to improve authenticity in your content
- The content optimized through Content Shield preserves its E-E-A-T signals (Expertise, Experience, Authoritativeness, Trustworthiness)
Pricing and Plans
The AI Content Shield is bundled into all INK subscriptions. There are two main pricing tiers:
- Professional Plan – $39/month
It is priced for small businesses and offers unlimited AI writing, SEO optimization, AI images, keyword research, clustering, and full access to Content Shield.
- Enterprise Plan – $99/month
Made for large teams, the enterprise plan provides everything in the Professional plan, plus 3 paid users, advanced team management, performance tracking, and premium support, all with Content Shield protection built in.
How InkforAll AI Works
INK’s Content Shield makes AI and plagiarism detection very practical. It’s also quite easy to use.
All you have to do is open the Content Shield tool. Paste your draft into the editor and make sure both toggles, Detect AI and Detect Plagiarism, are switched on.
Then, hit “Start Content Audit,” and let the tool scan your text and run it through its AI and plagiarism detection models.
Once it’s done scanning, you’ll get an output with three key insights:
- Info that includes a quick summary of how many words were included in the audit
- AI Detection Scores, one showing the odds your text is human-written, and the other showing the odds it’s AI-generated.
- Plagiarism Check, which shows the number of sources where potential overlaps were found.
The Content Shield is also integrated with INK’s AI Writer and SEO Optimization Suite, so you can immediately rewrite and optimize flagged sections within the same platform.
There’s also a purple shield icon with a check mark that sits at the bottom-left corner of the editor.
It encourages a balanced human-to-AI writing ratio to support responsible, penalty-free publishing.
The Results: Content Quality Review + Accuracy
When I tried running InkForAll’s Content Shield, it never really showed any results. The feature kept loading endlessly without displaying any results at all.
I tested it in different browsers and devices, but it showed no results.
But interestingly, some of the other tools, like keyword research, were still working fine, so it wasn’t a full system issue, just the detection feature itself that seemed unresponsive.
That got me really curious, so I dug a little deeper.
I searched the company on Google, and the Google profile of the company showed a note saying “Ink Content is permanently closed,” which was shocking since the website is still operational and there’s no such official announcement.
To cross-check, I looked up the founder’s profile on his website, and under his experience section, it says “InkForAll (2019–2023)”, which suggests that he’s since moved on to a new company started in 2023.
On top of that, the latest public reviews of InkForAll on both TrustPilot and G2 date back to 2024.
There’s been no new feedback since, which further shows that the platform or some of its features might no longer be actively maintained.
So, while InkForAll’s Content Shield feature still exists on paper, it doesn’t appear to function anymore.
In short, based on these findings, it seems InkForAll’s AI Content Shield is currently inactive or unsupported, which explains why it couldn’t complete the tests.
For creators who still need a reliable AI detector and writing suite, Undetectable AI remains a more dependable option that’s regularly updated and fully operational.
InkforAll AI vs Our AI SEO Content Writer
Both INKforAll and Undetectable AI’s SEO Content Writer are created to generate long-form content.
INKforAll SEO Writer
INKforAll uses over 150 pre-trained AI models that work in the background as it generates long-form blogs and articles.
It is built on what it calls Natural Language Optimization (NLO), a system where you input an SEO keyword at the start of your document so the AI learns your content’s style, tone, difficulty, and context.
Once set, INK’s editor starts to generate a headline and then the full article. All you have to do is simply place your cursor in the editor and press “Compose.”
The sidebar offers emotional tone recommendations, while its command mode at the bottom allows you to guide the AI with specific prompts.
However, the main limitation of the tool is that INK’s system depends heavily on user input.
It lacks deep integration with real-time SEO data, so, naturally, it doesn’t analyze live keyword trends, nor does it automatically include backlinks.
Undetectable AI SEO Writer
Unlike INKforAll, Undetectable AI’s AI SEO Writer strategically builds SEO content from the ground up using keyword intelligence and competitive analysis.
It requires you to answer a few simple questions about your target keyword and audience before writing anything to thoroughly understand the context.
Then, the system creates SEO-driven title options.
If you’re satisfied with the title, you move ahead to give it some more direction about the content. Only then does it generate a fully optimized article with:
- Live keyword integration based on current search performance
- Automatic linking to credible external sources
- Custom AI-generated images that support your topic
- Built-in readability and tone adjustments aligned with your audience’s expectations
Undetectable AI also contains an in-built Humanization feature built using a proprietary humanization engine.
The feature rewrites your AI-written article, including the quirks and imbalances of human writing, to sound 100% natural.
Try our AI Detector and Humanizer in the widget below!
Conclusion
To sum up, InkforAll is packed with features, sure, but for most solo creators and small teams, it’s just too expensive to justify.
Paying that much only makes sense if the tool’s accuracy and reliability are consistently spot-on, and based on our tests, that wasn’t always the case.
Not to mention, the content shield feature used for AI detection didn’t work at all.
Undetectable AI, on the other hand, is a free, easy to use alternative that performs just as well, if not better, across multiple independent tests.
Besides AI detection, you also get a lot of helpful tools for free, such as AI SEO content writer, Grammar Checker, Humanizer, Essay Writer, etc.
Give Undetectable AI a try today!