iLang Detect and Scribbr AI Detector both help you spot AI-generated text, but they take very different approaches. Scribbr is a free-to-use tool that gives you a percentage AI score, with a premium tier bundled into its plagiarism checker. It's built for students who want to verify their work before submission.
iLang, on the other hand, is completely free with no signup and no word limits. Instead of just a score, it shows you sentence-level issues across six dimensions like vocabulary and rhythm, and gives you fix suggestions for every flagged fragment. What if you could not only detect AI writing but also improve your own text at the same time?
Side by side
scroll sideways on small screens →| Feature | iLang Detect | Scribbr AI Detector |
|---|---|---|
| Pricing | Free | Free checker; premium AI check comes bundled with a paid plagiarism check, one-time $19.95 to $39.95 per document, no subscription |
| Free tier | Free to use, no signup | Unlimited free checks, up to 1,200 words per submission, no account required |
| Output style | Sentence-level issue list across 6 dimensions (vocabulary, structure, tone, punctuation, logic, rhythm) plus an AI probability score | Percentage AI score |
| Languages | English (Chinese version at detect.ilang.cn) | 5 languages per third-party reviews: English, German, French, Spanish, Dutch (English strongest) |
| Fix suggestions | Yes: every flagged fragment gets a problem explanation and a fix suggestion, plus overall rewrite advice | Not advertised; detection only |
| API | Not public yet | No |
| Best for | Writers and editors who want to fix the text, not just get a score | Students and academic writers checking work before submission |
| Vendor accuracy claim | No accuracy percentage claimed. iLang shows the markers themselves, so you can judge every flag instead of trusting a number. | Scribbr's own comparison research rates its premium detector highest at 84% accuracy (free version 78%) and says it "did not incorrectly label any human text as AI-generated" and detected every GPT-4 text in that test. Source: scribbr.com |
Where they differ
Output detail and guidance
Scribbr gives you a single AI probability score, either from its free or premium detector. The premium version claims 84% accuracy and says it never mislabels human text. iLang goes further: it breaks down the text into six dimensions and flags sentence-level problems. Every flagged fragment comes with a plain-English explanation and a rewrite suggestion. This means you get actionable feedback, not just a number. For a writer, that difference is huge.
Pricing and usage limits
Scribbr offers unlimited free checks, but each submission is capped at 1,200 words. To get premium detection, you must buy a plagiarism check starting at $19.95 per document. iLang is completely free with no signup and no word limit. You can check as much text as you want, as often as you want, without ever paying. That makes it far more accessible for long documents or repeated use.
Accuracy and real-world performance
Scribbr's own research says its premium detector hits 84% accuracy and catches all GPT-4 text. But an independent 600-sample benchmark found around 72.8% detection and a 9.2% false-alarm rate. iLang doesn't publish accuracy numbers, but it focuses on catching the telltale patterns of AI writing at the sentence level. Its strength is transparency: you see exactly which parts look suspicious and why, so you can judge for yourself.
Which one to pick
Students who need a quick AI score and a bundled plagiarism check
If you're a student submitting a paper and you want a single number to reassure you, Scribbr works. Its free version is quick and easy. The premium tier, though paid, adds newer model detection and pairs with a Turnitin-powered plagiarism checker. That combination is hard to beat for academic submissions.
Writers and editors who want to improve their text, not just detect AI
If you write or edit regularly, iLang is the better fit. It shows you exactly which sentences sound robotic, explains why, and suggests how to fix them. No signup, no limits, no cost. You can learn from the feedback and make your writing better over time. That's a tool that keeps giving.
When you want a quick score and detailed feedback
Run your work through Scribbr first to get a quick percentage check. Then use iLang to dig into the flagged sentences, understand the problems, and rewrite them. The two tools complement each other nicely: one gives you confidence, the other gives you a roadmap.
Frequently asked questions
Yes. iLang Detect is completely free to use. You don't need to sign up or create an account. There is no word limit per check, and you can use it as many times as you want. No hidden charges or premium tiers.
Scribbr claims 84% accuracy for its premium detector and 78% for free, based on its own research. An independent test found lower numbers. iLang doesn't publish an accuracy percentage, but it provides detailed sentence-level analysis so you can see the evidence yourself.
Scribbr supports five languages: English, German, French, Spanish, and Dutch. Its English detection is strongest. iLang currently supports English, with a Chinese version available at detect.ilang.cn. For multilingual writers, Scribbr offers more coverage.
Absolutely. Use Scribbr for a fast overall score, especially if you also need a plagiarism check. Then use iLang to get sentence-level feedback and rewrite suggestions. The combination gives you both a quick verdict and a detailed editing guide.
See the issues, not just the score
Paste the same draft you ran through Scribbr. Free, no signup, nothing stored.