Does JustDone AI Work? Here's what we found.

Justdone AI promotes itself as a comprehensive AI content solution offering two main tools: an AI content detector that claims to identify AI-written text with "high accuracy" and an AI humanizer that promises to transform AI content into text that bypasses detection systems.

The platform targets students concerned about academic integrity checks, content creators navigating publishing requirements, and marketing teams seeking authentic-sounding content without detection issues.

Is Justdone AI's Detector Accurate?

Our testing revealed troubling inconsistencies with Justdone AI's detector. Using a passage from a magazine (published 2017 before the wide adoption of AI) - which is 100% human-written - Justdone AI produced dramatically different results:

• Standard browser test: 76% AI probability
• Different browser test: 95% AI probability
• Second standard browser test: 62% AI probability
• Second incognito test: 83% AI probability

This suggests the detector may not be analyzing linguistic patterns at all, but instead generating seemingly random percentages. The fact that the same human-written content can be labeled as "mostly AI" and "mostly human" depending on when and how it is tested, for the exact same text, raises serious questions about the technology's legitimacy.

This isn't the first time someone has discovered this, either. There are several Reddit posts showing similar inconsistencies with the JustDone AI Detector. One user noted that even writing a single word yields an output of 92% AI on their detector.

Given these findings, as of April 2025, we are confident that the JustDone AI Detector results appear to be randomly generated, with no actual AI analysis of the text, at least for the free version. While it is a clever marketing solution that creates artificial demand for their humanizer, this practice is highly unethical.

We double-checked this text with GPTZero, a reputable AI detector, and received results of 0% AI across several attempts, which confirmed that a human wrote the article.

However, it's worth keeping in mind that these results are from testing their free version on their landing page. Some users have reported that detection results differ as soon as they switch to their paid plan, with accuracy improving.

How Much Does Justdone AI Cost?

Justdone AI's pricing structure is:

• Free Plan: $2 for 7 days, $39.99/m after
• Premium plan: $29.99/month for unlimited services

Given the performance issues we identified, these premium prices raise questions about the value provided.

Is Justdone AI Ethical?

Based on our testing evidence, there are legitimate ethical concerns with Justdone AI's business model. The detector appears to display inconsistent, potentially arbitrary AI probability scores, even for content that is definitively human-written and predates the AI era.

This pattern suggests that the detector may be designed to flag content as "AI-generated" regardless of its actual origin, potentially prompting users to purchase their humanizer service unnecessarily. This would represent a "problem-solution" marketing tactic where the company may be creating a false problem to sell their solution.

Is Phrasly AI Better Than Justdone AI?

Our comparative testing found that Phrasly AI substantially outperformed Justdone AI in detection accuracy:

When tested with the same magazine article, Phrasly correctly identified it as human-written across all testing sessions, showing none of the inconsistencies found with Justdone AI.

Unlike Justdone AI, we offer our AI detector completely free without misleading users into thinking their human content is AI-generated. Our detector provides consistent, reliable results without attempting to scare users into purchasing additional services.

Our full platform offers superior performance at $19.99/month compared to Justdone AI's $39.99 premium plan, but our detector doesn't employ deceptive tactics to push users toward paid options.

Testing Methodology

Our testing approach was straightforward and replicable:

1. We selected verifiably human-written content, specifically a Reputable Magazine post from 2017, that predates modern AI.
2. We tested this identical passage through Justdone AI's detector multiple times across different browser sessions and days.
3. We compared these results with GPTZero, a more established detection tool, using the same passage.

This methodology provided clear evidence of how the technology actually performs in real-world conditions.

Side-by-Side Comparison

Our direct comparison revealed significant performance differences:

The data speaks for itself - Justdone AI showed poor consistency and effectiveness, while Phrasly delivered reliable results across all tests.

Conclusion: Should You Use Justdone AI?

Based on our thorough testing, we cannot recommend Justdone AI's free detector. The evidence suggests their detector produces inconsistent results that appear almost random, with no correlation to whether content was actually AI-generated or human-written.

Our findings raise questions about whether Justdone AI might be using questionable business practices - potentially flagging human content as AI-generated to create artificial demand for their humanizer service. When a detector shows wildly different results for the exact same text within minutes, it's difficult to see this as anything other than intentionally deceptive. However, as mentioned earlier, the results may differ and be more accurate with their paid plan, which we have not tested.

For those seeking a reliable alternative, Phrasly AI demonstrated substantially better performance across all our testing metrics while offering more transparent technology at a lower price point.

In the rapidly evolving field of AI content tools, consumers deserve honesty and effectiveness. Based on our evidence, Justdone AI's free detector currently provides neither.