Artificial Intelligence

GPTZero vs JustDone AI: Which is Better for Students in 2025?

06/25/2025
by Zoran Trimmel
GPTZero vs JustDone AI: Which is Better for Students in 2025?
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Claiming your writing as unique and natural is now a crucial final step before submitting or publishing. While it’s time-consuming, a good tool can save you hours. The real questions are, “Where to find it?” and “How do we know if it’s the right fit?”

We’ve got you covered with a detailed comparison of two rising names in the market: GPTZero vs JustDone AI. Scroll down to explore both tools and make your choice. Here’s a sneak peek: They’re beyond detection. Let’s dive in!

GPTZero vs JustDone AI: A Quick Overview

GPTZero

GPTZero—AI Detector and More

GPTZero—AI Detector and More

Known as a game-changer in the AI text detection technology, GPTZero shines by using advanced algorithms to analyze writing patterns and tell us whether that piece is generated by AI. Beyond that, it offers a plagiarism checker, grammar checker, source finder, and more to help you improve your writing.

JustDone AI

JustDone AI Writing Assistant

JustDone AI Writing Assistant

JustDone AI is also an all-in-one platform for students and creators alike. It not only offers intuitive AI detection and plagiarism checking tools but also helps users paraphrase, summarize, and humanize their content. So, if you need a flexible tool for your writing process, this one is a must-try.

GPTZero vs JustDone AI: Top 4 Key Features

You might be wondering, what are the similarities and differences between GPTZero and JustDone AI? Soon, we’ll dive deep into the main features of each platform. But before that, let’s have a look at the summary table below:

Feature GPTZero JustDone AI
Target Audience Educators, publishers, students, professionals, researchers Students, educators, content creators, marketers, and small business owners
Primary Function AI text detection, plagiarism checking, and grammar checking AI text detection, AI humanization, plagiarism checking
Detection Accuracy High Moderate
Integration A Web-based Chrome extension integrates with LMS Web-based Chrome extension
API for developers Yes No
Customization Limited customization Customizable reports, content generation
User Interface Easy to use, clear navigation tabs, free of ad interruptions Quick and straightforward
Free Plan Yes Yes (Limited Features)

Time for key functionalities!

Plagiarism Checker

Both GPTZero and JustDone AI offer plagiarism detection, but they approach it in different ways.

Let’s talk about GPTZero first. Like many others, this tool scans text for potential matches with online sources and gives you a similarity score. However, GPTZero elevates this further by providing ready-to-copy citations (available in different types). Users are sure to love this originality enhancement feature.

GPTZero’s Plagiarism Checker and Citation Generation

GPTZero’s Plagiarism Checker and Citation Generation

JustDone AI, on the other hand, offers a more detailed plagiarism checker. It not only finds exact matches but also provides a detailed report that highlights the sources of any copied content.

Even better? JustDone AI provides a smart feature that excludes citations, quotes, and bibliographies while checking. This means that the scanning focuses on original content only, making it more accurate and relevant. What’s more? JustDone AI allows users to remove plagiarism in just one click. It means that as flagged content is detected, the platform immediately offers rewriting suggestions to help you fix those parts without leaving the page.

JustDone AI’s Plagiarism Checker

JustDone AI’s Plagiarism Checker

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AI Detector

GPTZero utilizes perplexity and burstiness scores to evaluate the complexity and variation of your text. This helps it flag text that doesn’t sound quite human. In fact, the platform claims a 99% accuracy rate and a false positive rate of 1%. This is worth trying to evaluate this ability.

In fact, we conducted a small test using GPTZero’s advanced scan to examine a 100% human-written text. And did it spot anything? Well, the result is quite clear as shown in the picture below: “entirely human”.

AI Detection Feature of GPTZero

AI Detection Feature of GPTZero

How about JustDone AI? This platform also offers an AI content detection feature, but to see the highlighted parts or detailed reports, you need to subscribe. Besides, it offers an AI humanizing button, allowing you to improve your writing right after checking.

Its accuracy? We had it check the same human text as above, and the result is quite shocking. 91% AI-generated text? Well, if you’re considering JustDone to be your AI content detector, you might need a second thought.

AI Detection Feature of JustDone AI

AI Detection Feature of JustDone AI

Grammar Checker

Grammar-Checking Feature of GPTZero

Grammar-Checking Feature of GPTZero

GPTZero checks for grammar mistakes, spelling errors, and punctuation issues. It also provides customized feedback based on the type of content to improve tone and sentence structure. Great resource to elevate your work!

Grammar-Checking Feature of JustDone AI

Grammar-Checking Feature of JustDone AI

How about JustDone AI? Well, like GPTZero, this tool provides a grammar checker with real-time feedback. Additionally, it suggests more impactful language and includes features that let you rephrase or adjust your text for better readability.

Additional Features

JustDone AI’s Chatbot

JustDone AI’s Chatbot

JustDone AI’s ability is beyond just detecting AI and checking for plagiarism. One standout feature is the AI humanizer, which helps you rephrase flagged AI content to make it sound more human-like. It also has an AI paraphraser, a summarizer, and a fact checker. Even greater, JustDone AI has a powerful AI chatbot that allows you to ask questions, research topics, chat with files (PDF, DOC, or TXT), and create unique content.

GPTZero, on the other hand, is not as handy as that. Though it doesn’t help you rephrase or generate text, it does offer features like the AI grader and source finder, which help educators and researchers carefully check the authenticity of a piece of work.

You may be interested in:

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GPTZero vs JustDone AI: Pros & Cons

Pros Cons
GPTZero ✅ 99% accuracy rate

✅ Free version available with basic AI detection.

✅ Including grammar and plagiarism checking

✅ Simple, straightforward interface

❌ Lacks more advanced content creation tools

❌ May miss some sophisticated AI writing

❌ No content enhancement tools like paraphrasing or summarizing

JustDone AI ✅ All-in-one solution with plagiarism checking, AI detection, and more

✅Innovative AI Chat feature

✅ Intuitive and clean interface

✅ Delivering rapid results

❌Limited free plan

❌ Suggestions may not always be perfect

JustDone AI vs GPTZero: Pricing Comparison

The good news is that both platforms offer a free plan, yet of course, with certain limitations. However, we’ve seen that that of GPTZero is a bit more generous.

Regarding paid plans, JustDone AI vs GPTZero choose different approaches.

GPTZero Pricing Plans

GPTZero Pricing Plans

JustDone AI Pricing Plans

JustDone AI Pricing Plans

Pricing Plan GPTZero JustDone AI
Free Plan 10,000 words per month; Basic AI Scan; 5 Free Advanced Scans Available with limited features (no detailed disclosure)
Paid Plan Essential Plan ($14.99/month): 150,000 words/month; Grammar Check; AI Vocabulary check; etc.

Premium Plan: ($23.99/month) 300,000 words/month; Advanced Scan; Plagiarism Check; etc.

Professional Plan: ($45.99/month) 500,000 words/month; Page-by-page scanning; Team collaboration features; etc.

– 7-Day Access Plan: $2 (then $39.99/month)

– Unlimited Monthly Plan: $19.99/month

– Unlimited Annual Plan: $24.99/month

So, as you might see, GPTZero uses a tiered pricing model based on word count and features available. Meanwhile, JustDone AI provides unlimited access plans (low-cost trial and affordable monthly/annual plans), focusing on flexibility. Which one do you prefer?

Note: Prices and features are subject to change. Please refer to the official websites for the most current information.

Which Factors Should Be Considered When Choosing an AI Detector & Plagiarism Checking Tool?

We’d like all the readers to find the most suitable tool for their work, so we’ve made some notes below. Check them out!

  • Accuracy: Accuracy is a priority. Some tools might be better than others, especially when it comes to more advanced AI models. So, it’s important to read reviews carefully (or experience the tools yourself if possible) to evaluate their functionality.
  • Features: Beyond just detecting AI content, many tools also offer helpful extras like plagiarism checking or content improvement. A flexible tool to cover all your needs and save you time. Why not?
  • Pricing: Some tools offer free plans or budget-friendly entry levels. Take this advantage to experiment and evaluate. Besides, check what each pricing tier includes and consider whether it gives you the value you need.
  • User Experience: While some tools are beginner-friendly, others may be more complex with lots of customization options. Choose the one that fits your style.

Wrap it up

In conclusion, GPTZero vs JustDone AI each offer valuable features. To determine your best match, consider your needs first. If you lean towards AI detection and essential plagiarism and grammar checking, GPTZero is a smart move. On the other hand, go with JustDone AI when plagiarism checking and writing enhancement matter.

In case you need to explore more options, TechDictionary has got you covered. Feel free to browse our detailed analysis and comparisons of AI writing assistants!

FAQs


1. Is the GPTZero AI detector accurate?

Yes, GPTZero provides high accuracy (around 99%) in detecting AI-generated content. However, it may still produce false positives or fail to detect some AI-generated text.

2. What is the false positive rate for GPTZero?

GPTZero has a false positive rate of about 1%. This means that GPTZero may miss some AI-generated content, but it rarely flags human-written content as AI-generated.

3. What is the best AI detector for teachers?

GPTZero is ideal for teachers because it has high accuracy in detecting AI content, and it also works well on academic writing. Additionally, tools like Originality AI and Winston AI are also reliable options.

Rating
5/5
Zoran Trimmel
Zoran Trimmel
Zoran Trimmel is an AI specialist who simplifies complex technical concepts. He evaluates emerging AI platforms for our technology website and produces insightful articles on AI and tech tools, thanks to his attention to detail and effective communication skills.
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