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Content Authenticity Detection · Proofreading Editing

AI Detector Pro

AI Detector Pro spots the passages in a document that trigger AI detectors, then rewrites them so the text reads human. Detection covers seven languages; humanization, tone analysis and Google Docs and Word plugins complete the set.

Active GDPR compliant Free plan Freemium API available 13+ Verified by Guidaio
Overview

What is AI Detector Pro?

AI Detector Pro, shortened to AIDP across its own pages, is a web platform that does two jobs in one pass: it finds the traces of AI in a piece of writing, then helps remove them. It is published by AI Detector Pro LLC, based in Boston, Massachusetts, whose first version went online in January 2023 against ChatGPT-2 and has been retrained since on GPT-4, GPT-5, the O-series, Gemini, Claude and other common language models.

The detection side returns a score, but the score is not the point. AIDP marks up the document itself, showing which sentences are likely to set off a detector, which words the models were most likely to predict, and which stock phrases carry the AI register. Detection runs in seven languages: English, Spanish, French, German, Portuguese, Arabic and Korean.

The rewriting side is called AI Eraser. It proposes rephrasings for the flagged passages, with about half a dozen humanization models and a slider that trades detectability against fidelity to the original. Around it sit the Pinpoint Editor, which points at the most robotic passage in the document, Phraseology, which isolates AI jargon, and a tone map scored on eleven proprietary dimensions. Humanization is fully developed in English only; the FAQ describes it as experimental in the other six languages.

What sets the product apart is less the technology than its stated stance. The About page argues that the interesting question is not who should be accused of using AI, but who is most likely to be accused wrongly, and the tool is built for that person: the student or the employee checking their own work before submitting it, not the institution screening it afterwards.

In practice AIDP runs in the browser, inside Google Docs and Microsoft Word through plugins, and behind other products through a documented REST API billed per use. Enterprise buyers can obtain discounted API pricing and a white-label build carrying their own branding. Scans are capped at 40,000 characters and humanizations at 3,000 to 6,000. The publisher writes in its own footer that no tool of this kind can be 100% accurate.

What it does

  • Scan a document and get an AI-detection score
  • Highlight the exact passages that trigger detectors
  • Rewrite the flagged passages automatically with AI Eraser
  • Set how far a rewrite should go, from more human to less human
  • Read a tone report scored on eleven proprietary dimensions
  • Surface the jargon and stock phrases that give AI away
  • Call the same detection from another product through the API
Audience

When to use AI Detector Pro / When not to

A quick filter to help you decide if AI Detector Pro is the right fit.

When to use AI Detector Pro

  • Writers and content teams who draft with ChatGPT or Gemini and need the output to read in their own voice
  • Students and employees who want to check an assignment or a report before handing it in, rather than after being accused
  • Editors and proofreaders who need the offending sentences named, not just a percentage on a dashboard
  • Writers working in Spanish, French, German, Portuguese, Arabic or Korean, all covered by detection
  • Product and engineering teams embedding AI detection in their own tool through the API or the white-label build

When not to use AI Detector Pro

  • Anyone who needs a verdict they can act on: the publisher states plainly that no detector is 100% accurate
  • Institutions looking for an invigilation or disciplinary tool, since the product is deliberately built for the person being accused
  • Writers who need dependable humanization outside English, which the FAQ still calls experimental
  • Teams handling regulated or client-confidential material: no DPA, no subprocessor list, no certification and US-only hosting
  • Anyone hoping to work from a phone, as there is no iOS or Android application
Get started

How to use AI Detector Pro

A typical end-to-end flow, from setup to results.

  1. Create an account; the free tier asks for an email address, not a payment card
  2. Paste your text or upload the document into the editor
  3. Run a scan, remembering that each run counts against the monthly quota even on the same document
  4. Read the markup: risky passages, predicted words and overused AI phrasing
  5. Fix by hand in the Pinpoint Editor, or hand the passage over to AI Eraser
  6. Pick a humanization model and set the confidence slider
  7. Scan again to check the result, as more than one pass is often needed
  8. Open the tone report to see how the document sounds
  9. Install the Google Docs or Word plugin to work without leaving your document
  10. For automated use, subscribe to Unlimited, enable the API from the account page, authorize billing through Stripe and post to the reports endpoint
Quick read

Pros & Cons

Pros

  • Detects and repairs in the same tool, where most rivals only score
  • Names the offending sentences instead of returning a single percentage
  • Seven detection languages, which is unusual in this category
  • A permanent free tier that needs no payment card
  • Unlimited humanizations from the first paid plan, with unused quota rolling over
  • Works inside Google Docs and Word, so the document never has to move
  • Unusually candid about its own limits, stating openly that no detector is 100% accurate

Cons

  • The free tier is thin: three scans a month, no automated humanization, reduced document size
  • Humanization remains experimental outside English
  • Prices are advertised behind a permanent 50% coupon, making the reference tariff hard to read
  • API access costs extra and requires the top Unlimited plan
  • Data governance is bare: no DPA, no subprocessor list, no certification, US-only hosting
  • No published position on training from customer content, and no documented opt-out
  • Terms and privacy policy disagree on retention, two months against the start of the fourth month
Pricing

Pricing & Plans

A permanent free plan is available and requires no payment card; it allows three AI scans per month with no automated humanization. The lowest paid entry point is the Basic plan at USD 27.98 per month, or USD 279.98 per year, at the published list price, which a 50% coupon shown on the site reduces to USD 13.99 per month. API access is billed separately at USD 0.09 per unit of up to 4,000 characters and requires the Unlimited plan.

Plan 1
Free
  • USD 0 - 3 AI scans per month
  • no automated humanization
  • limited document size
  • pinpoint editor
  • tone analysis
  • phraseology
  • multilingual detection
  • Docs and Word plugins
Plan 3
Unlimited
  • USD 49.98 per month or USD 499.98 per year - unlimited scans and humanizations
  • and the only plan that opens API access
Plan 4
Enterprise
  • on quotation - discounted API pricing
  • branded reports and a white-label version of the product
Special offers — A 50% discount code, MSXOA3, is displayed publicly on the home page and the pricing page, with no announced expiry · The discount applies to every renewal, monthly or annual, for as long as the subscription runs, not to the first period only · With the code applied, Basic costs USD 13.99 per month or USD 139.99 per year, and Unlimited USD 24.99 per month or USD 249.99 per year · Annual subscribers who cancel within 60 days of being billed are eligible for a prorated refund
Prices and plans listed above may evolve. Always check the official pricing page before subscribing.
Trust & Privacy

Data, GDPR & hosting

A consolidated view of how AI Detector Pro handles your data.

GDPR overview

GDPR is addressed explicitly, but only in part. The privacy policy carries a dedicated section stating that EU GDPR and UK law require a legal basis, and it names four: performance of a contract, legitimate interests, consent, and compliance with a legal obligation. Region-specific rights are promised, with correction through account settings, marketing opt-out by unsubscribing, and deletion from the account page. What is missing matters as much. No Article 27 representative for the European Union is designated, no data protection officer is named, and the only channel is a shared mailbox. All data is transferred to and stored in the United States, with no transfer mechanism such as standard contractual clauses described anywhere. The text has not been revised since 10 July 2023.

Who owns the data?

The privacy policy, in force since 10 July 2023, treats everything you paste or upload as user content that remains yours: AI Detector Pro stores it to run the service and claims no ownership over it. The publisher states three separate times that it does not sell personal data. Documents stay in your account until you delete them or close the account, and a delete-account item on the account page purges them. The real caveat is who else reads the text: running a scan means passing it through AI models, some of them operated by third parties that the policy never names.

Reuse rights

The terms place no restriction on reusing what comes out of the tool. The privacy policy claims no intellectual property over the text you submit, so scan reports and humanized rewrites can be published, submitted or sold without asking permission. The constraints run the other way, on how the publisher uses your data: text is processed to scan and rewrite, and also feeds product improvement, personalization, support, debugging, security and marketing, through both automated and manual review. Third-party service providers are contractually bound but never listed by name, information may be handed to authorities where the publisher judges it necessary, and the whole dataset may pass to an acquirer in a merger or a sale.

Data retention & training

Retention summary
Two documents give two different answers. Section 34 of the terms says the contents of reports and uploaded documents are not kept indefinitely and can only be expected to last two months, after which they may be deleted at the publisher's discretion. The privacy policy says user content is deleted automatically at the beginning of the fourth month after it was entered, while also stating that documents you create are kept until you delete them or close your account. Personal information, as distinct from content, is retained as long as needed to run the service, meet legal obligations or resolve disputes. Deletion is in the user's hands: a delete-account item on the account page removes personal information and purges the associated data.
Trains on customer data
Unclear
GDPR contact

Hosting summary

All hosting is in the United States. The privacy policy states without qualification that information submitted to AI Detector Pro is transferred to, processed and stored there, and it warns users elsewhere that American privacy law may differ from the law where they live. No regional alternative is offered and no transfer mechanism, such as standard contractual clauses or an adequacy decision, is described. Technically, the domain resolves to 24.144.91.251, an address operated by DigitalOcean and geolocated in Santa Clara, California; the publisher itself is registered in Boston, Massachusetts. Security is described only in general terms: encryption, secure network configuration, restrictions on data transfer and limited employee access. No certification is claimed, neither SOC 2 nor ISO 27001 nor HIPAA, and no list of the subprocessors handling the data is published, even though the policy acknowledges that scanning requires passing user text through AI models operated by third parties.

Hosting countries
🇺🇸 United States
Watch-outs

Things to keep in mind

Risks and trade-offs to weigh before adopting AI Detector Pro.

  • A tool that removes the signs of AI makes it easy to pass off unread, unchecked machine output as your own work; responsibility for what the text says stays with you
  • Leaning on automated rewriting erodes the very habit it replaces, and a writer who never rephrases their own sentences slowly loses the ability to do so
  • A clean score is not proof of innocence and a bad one is not proof of guilt; treating either as evidence in an academic or disciplinary process misuses the tool
  • Every scan sends your text through AI models, some of them run by third parties the privacy policy never names
  • Everything is stored in the United States, which matters when the document is confidential, client-owned or subject to European rules
  • The advertised price assumes a permanent 50% coupon, and cancelling forfeits both the coupon rate and any rolled-over credits immediately
  • Disputes are settled by individual arbitration in Boston under Massachusetts law, with class actions waived
Setup

Setup & Integrations

Technical difficulty

Almost none for ordinary use. An email address and a password open a free account, there is nothing to install, and no payment card is asked for; signing in through Google or Apple is also possible. The Google Docs and Word plugins are a separate but standard install, and two-factor authentication can be switched on from Account, then Security. The API route is another matter: it needs the Unlimited subscription, activation from the account page, a Stripe billing authorization and a developer able to make REST calls.

Deployment

Web appAPIPlugin

Integrations

Google Docs Microsoft Word

Supported languages

EnglishGermanSpanishFrenchPortugueseArabicKorean
Company

Behind AI Detector Pro

Company name
AI Detector Pro LLC
Founded
30/01/2023
Country of origin
🇺🇸 United States
Headquarters
6 Liberty Sq Suite 2027, Boston, MA 02109, USA
UBO
INFORMATION_NOT_FOUND
UBO country
INFORMATION_NOT_FOUND
Domain registrar country
🇺🇸 United States
Legal contact
Support contact
Official links

Resources

All the official URLs gathered for verification and reference.

FAQ

Frequently asked questions

What exactly does AI Detector Pro do?
It scans a document for signs of AI authorship, highlights the passages that trigger detectors, and then rewrites them so the text reads as human. Detection and correction sit in the same tool.
Which AI models can it detect?
The publisher states that it has been trained on ChatGPT data, namely GPT-5, GPT-4 and the O1/O3/O4 series, as well as Gemini, Claude and other common large language models.
Which languages are supported?
Detection works in English, Spanish, French, German, Portuguese, Arabic and Korean. Humanization is fully developed in English only; the FAQ describes it as experimental in the other six.
Is the detection completely reliable?
No, and the publisher says so itself. Language models carry a random component, so false positives happen: text written by hand can be flagged if it went through a grammar checker built on the same models.
What does the free plan include?
Three AI scans per month, a reduced document size and partial access to AI Eraser, but no automated humanization. No payment card is required to open the account.
How much does the cheapest paid plan cost?
Basic is listed at USD 27.98 per month or USD 279.98 per year. A 50% coupon displayed on the site brings the monthly figure down to USD 13.99.
Is there an API?
Yes. It requires the Unlimited plan, is enabled from the account page through a Stripe authorization, and is billed at USD 0.09 per unit of up to 4,000 characters.
Where is my data stored?
In the United States. All information submitted is transferred to, processed and stored there, and no regional alternative is offered.
How long is my content kept?
The two documents disagree. Section 34 of the terms says content can only be expected to last two months; the privacy policy says user content is deleted automatically at the beginning of the fourth month after it was entered.
Conclusion

Should you pick AI Detector Pro?

AI Detector Pro is a focused product that does what it says. Where most tools in this category stop at a percentage, AIDP marks the document up, showing which sentence, which word and which turn of phrase gives it away, then offers to rewrite it with a slider controlling how far the rewrite goes. The Google Docs and Word plugins mean the work never has to leave the document, and seven detection languages is more than most rivals offer. A permanent free tier lets anyone test the detection before paying, and the publisher's candour about the limits of the exercise, stating that no detector is 100% accurate and that grammar checkers built on the same models can trip it, is more reassuring than a confident claim would be.

The reservations sit mostly on the governance side. There is no data processing agreement, no published list of subprocessors, no security certification, and no stated position on whether customer content trains the models, let alone an opt-out. Everything is hosted in the United States with no regional alternative and no described transfer mechanism, and the privacy policy has not been revised since July 2023. The terms and that policy also contradict each other on retention: two months on one page, the start of the fourth month on the other.

Pricing deserves a second look as well, since every figure on the site is shown with a 50% coupon already applied, so the real reference tariff is double what the eye reads.

For an individual writer, a student or an editorial team working in English, AIDP is a sound and well-designed choice. For an institution, a regulated business or a European buyer with a compliance checklist, the paperwork behind the product would need examining before committing.