Legal · Terms

Terms of Service

App: Vantis Browser Effective: 2026-08-21 Last Updated: 2026-08-21

These Terms of Service ("Terms") govern your use of the Vantis Browser mobile application ("the App"), operated by Tranquil Mind Technology JSC ("we", "us", "our"). By downloading or using the App you accept these Terms and our Privacy Policy (https://policy.tranquilmind.co/vantis-browser/privacy). If you do not accept them, do not use the App.

1. Eligibility

You must be at least 13 years old, or older where your country sets a higher age of digital consent, to use the App. A minor may use the App only with the involvement of a parent or guardian. The App is a general-audience utility that opens the public internet; it is not designed for or directed to children.

2. Licence

We grant you a personal, limited, non-exclusive, non-transferable and revocable licence to install and use the App on devices you own or control, for your own non-commercial purposes.

You may not copy, modify, translate, decompile, reverse-engineer, disassemble, rent, lease, sublicense, resell or build derivative works from the App, except where applicable law expressly allows it. Rights not granted here are reserved.

3. What the App does

Vantis Browser is a mobile web browser. It lets you search or enter web addresses, open and manage multiple tabs (including closing them all at once), reach popular sites through eight built-in shortcut tiles, block web advertising, trackers and pop-ups with an on-device blocker, follow a counter of blocked ads and pop-ups alongside a protection timer, choose among 21 interface languages, and set the App as your default browser on Android.

The App hosts, produces and controls no web content of its own. Feature availability can differ by device, Android version and region, and we may modify, suspend or discontinue any part of the App at any time.

Blocking is not a guarantee. The blocker works from a curated on-device list of advertising and tracking domains. It reduces, but cannot remove, every advertisement, pop-up or tracker on every website, and some pages may render or behave incorrectly while blocking is on. We make no promise that any particular ad, pop-up or tracker will be stopped, and the counters shown in the App are indicative only.

4. No account, and the data on your device

The App has no account, login or profile. Your tabs, cookies, site data and preferences live on your device and are not uploaded to us. You are responsible for that local data: clearing the App's storage or uninstalling the App deletes it permanently, and we hold no backup. The Privacy Policy explains the limited information collected automatically.

5. Advertising and Premium subscriptions

The App is free to download and the free version is funded by advertising (banner, native and full-screen formats) delivered by Google AdMob and its mediation partners. The App shows no in-app advertising-consent form; you control ads personalisation through your device and Google account settings, as described in the Privacy Policy.

Premium. The App offers optional auto-renewing Premium subscriptions on yearly, monthly and weekly terms, sold through Google Play Billing. Premium removes in-app advertising. Prices, currencies and any introductory offer — such as the 3-day free trial attached to the eligible yearly plan — are set and displayed by Google Play for your region and may change; the price shown in the App at the moment of purchase is the one that applies.

Payment is charged to your Google Play account when the purchase is confirmed, or when a free-trial period ends.
Subscriptions renew automatically for the same period at the then-current price unless you cancel at least 24 hours before the current period ends.
Manage or cancel a subscription in Google Play → Profile → Payments & subscriptions → Subscriptions. Uninstalling the App does not cancel it.
Cancelling during a free trial keeps access until the trial ends with no charge; any unused part of a trial is forfeited when a subscription starts.
Refunds are handled by Google Play under its refund policy and by your mandatory statutory consumer rights. We do not process payments and cannot issue refunds ourselves.
You can restore an active subscription on another device signed in with the same Google account, using the restore option on the subscription screen.

6. Acceptable use

You agree not to use the App to:

break any law or regulation, or infringe anyone's intellectual property, privacy or other rights;
access, download or distribute unlawful material, including any material that sexually exploits or endangers minors;
interfere with, disrupt or overload the App, our providers' systems or any website, or attempt unauthorised access to them;
circumvent security measures, paywalls, access controls or the advertising that funds the free version, or tamper with billing and subscription verification;
run bots, scrapers or automated tooling through the App, or use it to distribute spam or malware;
redistribute the App's functionality commercially.

We may suspend or end your access if you breach these Terms.

7. Intellectual property

The App, its source code, design, interface, artwork, icons and the "Vantis Browser" name and logo belong to Tranquil Mind Technology JSC or its licensors and are protected by intellectual property law.

The App includes open-source components under their respective licences and an on-device blocklist derived from publicly available filter lists. All third-party names, logos and trademarks — including those of any website reachable through the App or shown on a shortcut tile — belong to their respective owners; their presence implies no affiliation with, sponsorship by or endorsement from those owners.

8. Third-party services and content

The App relies on third-party services for advertising, analytics, crash reporting, marketing attribution and payments, each governed by its own terms and privacy policy, and it gives you access to websites operated by third parties.

We do not create, own, endorse or control third-party content and are not responsible for it, for its availability, or for any transaction you enter into with a third party. Using any website reached through the App is subject to that site's own terms.

9. Disclaimers

The App is provided "as is" and "as available", without warranty of any kind — express, implied or statutory — including implied warranties of merchantability, fitness for a particular purpose and non-infringement.

We do not warrant that the App will be uninterrupted, timely, secure or error-free, that blocking will be complete, that every website will render correctly, or that defects will be corrected. Nothing in the App is professional advice. Some jurisdictions do not allow certain warranty exclusions, so parts of this section may not apply to you.

10. Limitation of liability

To the maximum extent permitted by law, Tranquil Mind Technology JSC and its officers, employees and suppliers are not liable for indirect, incidental, special, consequential or punitive damages, nor for loss of data, profits, revenue or goodwill, arising from or connected with your use of the App.

Our total aggregate liability for all claims relating to the App is limited to the greater of (a) the amount you paid us in the 12 months preceding the event giving rise to the claim, or (b) USD 50.

Some jurisdictions do not permit these limitations, so they may not apply to you; nothing here limits liability that cannot lawfully be limited.

11. Indemnification

You agree to indemnify and hold harmless Tranquil Mind Technology JSC from any claim, demand, loss or expense (including reasonable legal fees) arising from your misuse of the App, your breach of these Terms, or your violation of any law or third-party right.

12. Termination

You may stop using the App at any time by uninstalling it. We may suspend or terminate your access, or discontinue the App, at any time, including for a breach of these Terms. The sections on intellectual property, disclaimers, limitation of liability, indemnification and governing law survive termination.

13. Changes to these Terms

We may update these Terms from time to time. Material changes are posted on this page with a new "Last updated" date. Continuing to use the App after an update means you accept the revised Terms; if you do not accept them, stop using the App and uninstall it.

14. Governing law and disputes

These Terms are governed by the laws of Vietnam, without regard to conflict-of-law rules, and the courts of Hanoi, Vietnam have exclusive jurisdiction over any dispute — except where mandatory consumer-protection law in your country of residence lets you bring proceedings locally or requires local law to apply, in which case those rights are preserved.

15. General

If any provision of these Terms is held invalid or unenforceable, the remaining provisions stay in force. A failure to enforce a right is not a waiver of it. These Terms and the Privacy Policy form the entire agreement between you and us about the App. You may not assign these Terms; we may assign them in connection with a merger, acquisition or asset sale.

Distribution through Google Play is additionally subject to the Google Play Terms of Service. Google is not a party to these Terms and bears no responsibility for the App.

16. Contact

Tranquil Mind Technology JSC No. 3, Alley 98, Vu Trong Phung Street, Thanh Xuan Ward, Hanoi City, Vietnam Email: contact@tranquilmind.co