Terms of Service
Last updated: June 22, 2026
These terms govern your use of the Vietcodex website, our browser extensions (including TailGrab and AnswerGap), and any paid license you purchase, provided by Vietcodex ("we", "us"). By installing or using our products you agree to them.
1. The products
We build focused browser extensions and tools. Each product has a free tier and an optional paid upgrade. A product's own pages describe what it does; these terms apply across all of them.
2. License
Paid licenses are sold as a one-time license for personal or commercial use, activatable on up to three devices per license, and include updates to that product. A license is for your use; you may not resell, sublicense, or share your license key. We may deactivate keys that are shared or obtained fraudulently. Agency / white-label licenses, where offered, are governed by their separate terms.
3. Acceptable use
You agree to use our products lawfully and to respect the terms of the websites and services you use them on. Our extensions analyze content already delivered to your browser; they do not scrape or automate third-party services on your behalf. You are responsible for how you use any output or insights they produce.
4. No guarantee of results
Where a product reports on third-party systems (for example, whether AI search engines cite a website), those systems are external and change over time. We report what a product observes and may suggest improvements, but we do not guarantee any particular outcome, ranking, traffic, or visibility result.
5. Payments
Purchases are processed by Paddle as Merchant of Record. Prices may change, but changes do not affect licenses already purchased.
6. Refunds
See our Refund Policy.
7. Warranty & liability
Our products are provided "as is", without warranties of any kind. To the maximum extent permitted by law, we are not liable for any indirect or consequential damages, and our total liability is limited to the amount you paid for the relevant license.
8. Changes
We may update these terms; the "last updated" date reflects the latest version. Continued use after a change means you accept it.