Last updated: 2 September 2026 · These terms govern your use of untxt.uk, the UnTXT web application, and the UnTXT Chrome extension.
The most important clause, in plain words: UnTXT estimates how far a text resembles AI writing. That is all it does. The output is indicative rather than proof, so it must never be the sole basis on which anyone is accused of misconduct.
These terms form a contract between you and Sataklela OÜ, a company registered in Estonia. Creating an account, or simply using the service at all, means that you accept them, and if you do not accept them then you should not be using the service, which is a blunt way of putting it but an honest one.
UnTXT analyses text you submit. It highlights the passages resembling AI writing, and it explains each signal it raises. Unlike a plagiarism checker, which matches your writing against a source database of existing documents, this one compares what you wrote against statistical patterns, which is a different question entirely and produces a different kind of answer. Detection of this kind is probabilistic. False positives happen, false negatives happen, and neither is a malfunction. Benchmark figures describe performance on test sets. They are not a promise about your text, and the numbers move as models evolve.
You sign in with a Google account, and whatever happens under that session is your responsibility. To be clear, you must be at least 13, or older where your own jurisdiction sets a higher minimum for consenting to a service of this kind.
Text you submit stays yours. You grant us a licence to process it only so far as running the service actually requires, and that covers the analysis itself, the encrypted storage of your history, and the subprocessing set out in the privacy policy. The software, the brand and the signals stay ours.
The service is provided as it stands. We warrant neither that results are error free nor that availability is uninterrupted. So far as the law allows, our total liability for any claim arising from the service is capped at whatever you paid us across the 12 months before that claim arose. Nothing here limits liability that cannot lawfully be limited.
Stop using the service whenever you want, and request account deletion at the same time if that suits you better. Accounts breaking these terms can be suspended, though we warn you first unless the breach is severe. For a material change, we update the date above and flag it inside the product itself, so that it is not something you have to go looking for. Continued use after a change has been flagged counts as your acceptance of it.
Estonian law governs these terms. Disputes belong to the Estonian courts, unless mandatory consumer law where you live says otherwise, in which case that law wins and we would not argue about it. Questions about any of this reach us through our privacy address, and we read everything that arrives there.