Terms of Service
Effective date: August 30, 2026
These terms are an agreement between you and Radext Software Inc. ("RadLinguist", "we", "us") and govern your use of the RadLinguist apps and web app (the "Service"). By creating an account or using the Service, you agree to them and to the Privacy Policy, which explains how we handle your data. If you do not agree, do not use the Service.
1. What RadLinguist is
RadLinguist is an AI language coach: it translates, checks and polishes sentences, suggests natural alternatives, and teaches you a language through conversation, practice, and lessons. Your teacher is an artificial intelligence, and the Service says so — no person is reviewing your lessons.
2. Your account
- You must be at least 13 years old (or the higher minimum age your country sets for consenting to online services) to create an account. Speech analysis additionally requires being 16 or older.
- Keep your sign-in credentials to yourself; you are responsible for activity on your account.
- Give us accurate information, and use one account as one person.
3. Acceptable use
Use the Service for learning languages. Do not:
- break the law, or use the Service to harm, harass, or deceive others;
- probe, overload, scrape, or interfere with the Service, or try to access another person's account or data;
- attempt to extract our prompts, models, or another user's content, or use the Service to build a competing dataset;
- resell or provide the Service to others as your own offering.
4. Your content
What you write, say, and share in RadLinguist is yours. You give us the limited license we need to operate the Service: to store your content, process it (including through our AI provider) to produce your corrections, translations, lessons, and feedback, and to maintain the working notes that personalize your teacher. We do not use your content to train AI models, and the Privacy Policy describes the narrow, consent-only exception for de-identified quality evaluation. You can export or delete your content at any time.
You are responsible for what you submit: share only what you have the right to share.
5. AI output — what it is and is not
- The Service's responses are generated by AI. They can be wrong, incomplete, or unsuitable for your situation, despite our efforts.
- Level estimates are working estimates that keep adjusting as you learn. They are not certifications, test scores, or credentials, and must not be presented as such.
- The Service does not assess pronunciation or accent quality and makes no promise about learning outcomes.
- Nothing in the Service is professional advice — legal, medical, immigration, or otherwise. Translations you rely on for consequential matters should be checked by a qualified human.
6. Subscriptions and payment
RadLinguist is currently in a free pre-launch period. When paid plans launch, purchases will be billed through the App Store, Google Play, or our web payment provider, under that platform's terms; price, billing period, and cancellation terms will be shown before you pay. Subscriptions renew automatically until cancelled, and you can cancel any time in your platform's subscription settings — cancellation stops future renewals. Refunds for store purchases are handled by the store's own policies. We never see or store your card number.
7. Our property
The Service — its software, design, characters, curricula, and content we authored — belongs to Radext Software Inc. and its licensors. These terms give you a personal, non-transferable right to use it, not ownership of it.
8. Ending things
You can stop using RadLinguist and delete your account at any time in Settings › Account; deletion is permanent. We may suspend or terminate accounts that violate these terms, harm the Service or other users, or where the law requires it — with notice unless the situation makes that impossible. Sections that by their nature should survive (4, 5, 7, 9, 10, 12) survive.
9. Disclaimers
The Service is provided "as is" and "as available". To the fullest extent the law allows, we disclaim warranties of merchantability, fitness for a particular purpose, and non-infringement, and we do not promise the Service will be uninterrupted, error-free, or that AI output will be accurate. Some jurisdictions do not allow certain disclaimers, so parts of this section may not apply to you.
10. Limitation of liability
To the fullest extent the law allows, Radext Software Inc. is not liable for indirect, incidental, special, consequential, or punitive damages, or lost profits or data, arising from your use of the Service; and our total liability for any claim is limited to the greater of the amount you paid us in the twelve months before the claim and USD 50. Nothing in these terms limits liability that cannot lawfully be limited, and nothing takes away consumer rights the law grants you regardless of contract.
11. Changes
We may update the Service and these terms. When a change to these terms is material, we will update the date above and tell you in the app before it applies; continuing to use the Service after that is acceptance. The current version always lives at this address.
12. Governing law
These terms are governed by the laws of the Province of British Columbia and the federal laws of Canada applicable there, and disputes belong to the courts of British Columbia — except that nothing in this section deprives you of the protection of mandatory consumer-protection rules of the place where you live, or of your right to bring claims there where the law gives you that right.
13. General
If a part of these terms is found unenforceable, the rest stands. These terms and the Privacy Policy are the whole agreement between us about the Service. You may not assign them; we may assign them as part of a merger, acquisition, or sale of assets.