IA Checker

IA Checker combines AI text detection, writing tools, image analysis, and EU AI Act labelling in an iOS and web workspace. Its detector uses multiple authenticity signals and indicates sentence by sentence what informed its analysis; the service says about 60 words are needed for a useful reading and around 200 for a confident one. Writing tools include paraphrasing, grammar checks, translation, summaries, and AI humanization. Documents can be extracted from PDF, DOCX, and plain-text files, with OCR for scans and a 20 MB upload limit. Image analysis accepts JPG, PNG, and WebP files up to 15 MB, but requires a signed-in Pro or Max account. Standard pasted-text detection runs locally in the browser. Free includes text detection and writing tools. Premium costs €14.90 a month or €118.80 a year, with 1,000,000 word credits per month and additional tools. Writing operations use credits based on input size and tool multiplier, resetting monthly in UTC. Optional text history is off by default; a public developer API is being designed and is not generally available.

IA Checker brings detection and writing utilities together, with document and image workflows subject to distinct limits. Check the credit model and account requirements for image analysis against the work you plan to do.

IA Checker may suit writers who want text detection and revision tools in one workspace, as well as users who need document extraction or image analysis. Its detector guidance is relevant to people choosing how much text to submit for analysis.

Overview

IA Checker brings AI detection, writing tools and EU AI Act labelling into one workspace, with web and iOS access. It suits people who want to assess and revise text in the same service, especially those who also need image analysis. Its breadth is useful, but the image detector sits behind a paid-plan and sign-in requirement, while the detector itself needs enough text to make its result useful.

Key features

The text detector combines multiple authenticity signals and explains its analysis sentence by sentence. IA Checker says roughly 60 words are needed for a useful reading and about 200 for a confident one, so short passages are a poor fit for evaluation. Standard pasted-text detection runs locally in the browser.

Paraphrasing, grammar checks, translation, summaries and AI humanization make this more than a detection service. Writing operations draw from input-word credits, calculated using the submitted word count and each tool’s multiplier; credits reset monthly on UTC time. The detector supports multilingual text, and the listed word limit is 300,000 words.

For images, the detector accepts JPG, PNG and WebP files up to 15 MB and combines provenance, visual and pixel-forensic signals. Image analysis requires a signed-in Pro or Max account, so it is not part of the free workflow. Document extraction supports PDF, DOCX and plain text, including scanned documents through OCR, with uploads capped at 20 MB.

Premium and Team plans also include access to Pangram for detection and Undetectable for rewriting. IA Checker lists encrypted connections, WorkOS-backed authentication, sealed sessions, signed Stripe webhooks, rate limiting and network safeguards. Optional text history is off by default; the service says it does not sell submitted content or train its models on it without express opt-in. A self-serve public API is still being designed, so API access should not be treated as generally available.

Pricing

The Free plan costs nothing, billed per month. It includes paraphrasing, grammar checking, translation, summaries, AI text detection and essential features. It is a practical starting point for occasional text work, but does not include the paid image analysis or the Premium integrations.

Premium costs €14.90 a month, billed monthly, or €118.80 a year, billed yearly at an equivalent of €9.90/month. Both versions include 1,000,000 word credits per month, the AI media detector, Tone Insight and Humanizer, Pangram and Undetectable. The monthly option fits readers who want the full toolkit without an annual commitment; the yearly option costs less per month for those ready to commit for the year.

Team has custom pricing and includes all Premium tools, tailored usage and a dedicated contact. It is aimed at organizations whose needs call for a tailored plan rather than a published individual subscription. IA Checker also gives a 3-day trial; the trial’s renewal terms are not provided. The Free plan is separate from that trial.

Platforms

IA Checker is available on iOS and the web. PDF report export is supported. Its listed API access does not mean developers can currently use a self-serve public API, which is not generally available.

Who it's for

Choose IA Checker if you want detection and common writing utilities together, need multilingual support, or expect to work with documents and images alongside pasted text. It is less suitable if your main goal is dependable judgment on very short passages, or if image analysis must be available without a paid account.

Pros and cons

• Pros: Sentence-level explanations show what shaped the text analysis, making the result more informative than a single score.
• Pros: Detection, revision tools, document extraction and paid image analysis cover several stages of a writing workflow in one service.
• Pros: Optional text history is disabled by default, and submitted content is not used for model training without express opt-in.
• Cons: The detector calls for about 200 words for a confident reading, which limits its value on short excerpts.
• Cons: Image analysis requires a signed-in Pro or Max account, placing that workflow outside the free plan.
• Cons: The public developer API is not generally available, limiting its immediate fit for teams seeking self-serve integration.

Alternatives

Grammarly is a better fit for Android users seeking a writing assistant with a free plan and a Pro tier priced at $12 a month; its listed free plan includes 100 AI prompts per month.

ZeroTrue suits readers who want a free detector with API access and a web dashboard, plus Android, iOS and self-hosted platforms; its free plan allows 100 detections per month.

Walter Writes AI is an option for readers seeking a paid writing tool with a free trial and apps for Android and iOS, as well as web access and an extension.

GPTZero is worth considering for a detection-focused workflow with a free plan covering 10,000 words per month and access through web, extension and API.

Sapling may suit readers who need detector access through an API, extension, self-hosted setup or Windows, with a free plan capped at 2,000 detector characters per check.

Trinka is another freemium option for readers who need access through macOS, Windows, browser extensions, API or self-hosting.

AI Detector Pro offers a free web plan with three AI scans per month and no humanizations, making it an option for readers with occasional scan needs.

Detecto has a free tier with starter credits and full report fidelity, while its Student plan is priced at $6.99 a month.

Browse the AI Detection Software list to compare more tools in the category.

Verdict

IA Checker is best for people who want text detection, revision tools and document handling together, with image analysis as a paid upgrade. The sentence-level explanation and broad writing suite are its strongest reasons to choose it; look elsewhere if your work centers on short excerpts, requires an immediately usable public API, or needs free image analysis.