Terms of Use

Last updated: 8 August 2026

These Terms of Use (“Terms”) are a binding agreement between you and Bistriy Sp. z o.o. (“Bistriy”, “we”, “us”) governing your use of our mobile apps for iOS and Android and our related websites (together, the “Services”). They apply across all of our apps. By creating an account or using a Service, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the Services.

Applies to

These Terms cover the mobile applications and related websites operated by Bistriy Sp. z o.o. (each an “App”), all of which are intended for adults aged 18 and over:

  • Yes Master Chat — preference-based matchmaking and private chat · iOS & Android · yesmasterchat.com
  • Synastria — astrology-based matchmaking · iOS & Android · synastria.pro
Our Apps introduce you to other people. We do not verify users, and we do not guarantee any match, any reply, or any particular outcome. You decide what to share and whom to talk to, and you do so at your own risk.

1. Who we are

The Services are operated by:

Bistriy Sp. z o.o.
ul. Królewska 65A/1, 30-081 Kraków, Poland
KRS: 0000529467
Email: support@bistriy.com

2. Eligibility

You must be at least 18 years old and able to form a binding contract to use the Services. By using our Apps you represent that you meet these requirements and that you are not barred from using the Services under applicable law.

3. Your account

You sign in with your email address via a one-time link or code. You are responsible for keeping access to your email secure and for activity that occurs through your account. Provide accurate information and keep it up to date. One person may maintain only one account per App. Notify us promptly of any unauthorised use.

4. The Apps

Each App provides its own features, which are described in the App and, where relevant, on its website.

Yes Master Chat matches you with other users based on the role you choose and the preferences you set, and opens a private chat between you. There are no public profiles to browse and no photo galleries: matching happens on our side, and what you receive is a conversation. Other users see only your nickname.

Synastria calculates your natal chart from the birth data you provide and introduces you to other users whose charts it assesses as compatible, across the connection types you enable; its matching is based on astrological models and is offered for personal insight and entertainment.

We do not perform criminal background checks or verify the identity, statements or intentions of users.

5. Subscriptions and billing

  • Optional subscriptions. Some of our Apps offer an optional auto-renewing subscription that unlocks additional features. Where an App does, the features included, the price and the billing period are shown in the App before you purchase.
  • Payment is charged to your Apple Account (App Store) or your Google Play account, depending on where you downloaded the App, at confirmation of purchase.
  • Auto-renewal: a subscription automatically renews for the same period unless you cancel at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends.
  • Manage or cancel at any time in your App Store or Google Play account settings. Deleting the App does not cancel a subscription.
  • Refunds are handled by Apple or Google in accordance with the applicable store’s policies and applicable law; we generally cannot issue refunds directly. This does not affect your statutory consumer rights described in section 6.

6. Right of withdrawal (consumers)

If you are a consumer in the EU/EEA, you generally have the right to withdraw from a distance contract within 14 days without giving a reason. Because a subscription is a digital service supplied immediately, when you start it you expressly request that we begin providing the Service before the 14-day period ends and you acknowledge that, once the Service has been fully performed, you lose your right of withdrawal. If you withdraw after performance has begun but before it is complete, you may be required to pay for the part of the Service already provided.

Where the store you bought from (Apple or Google) offers its own cancellation or refund process, you may also use that. Nothing in this section limits any mandatory rights you have as a consumer, including under the Polish Consumer Rights Act (ustawa z dnia 30 maja 2014 r. o prawach konsumenta).

7. App Store and Google Play terms

You obtain our Apps through the Apple App Store or Google Play. These Terms are between you and Bistriy only — not with Apple or Google — and the store from which you downloaded the App is not responsible for the App or its content. Your use of the App must also comply with the applicable store’s terms of service.

Apple App Store

  • Your licence to use the App is a non-transferable licence to use it on Apple-branded devices you own or control, as permitted by the App Store Terms of Service. Apple’s standard Licensed Application End User License Agreement applies and, to the extent it conflicts with these Terms, governs.
  • Apple has no obligation to provide maintenance or support for the App.
  • To the maximum extent permitted by law, Apple has no warranty obligation, and any warranty claims, product-liability claims, or claims that the App fails to conform to legal requirements are our responsibility, not Apple’s.
  • Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.

Google Play

  • Your use of the App must comply with the then-current Google Play Terms of Service.
  • Google is not a party to these Terms and is not responsible for the App, its content, or for providing maintenance and support.
  • Any warranty and product-liability obligations, and responsibility for addressing any claims relating to the App, are ours and not Google’s, to the maximum extent permitted by law.

8. Acceptable use

You agree not to:

  • Harass, threaten, defraud, impersonate, or harm any person.
  • Send anything to a person who has asked you to stop, or continue contact after they have blocked you.
  • Post or send unlawful, hateful, sexually exploitative, or abusive content; content sexualising minors is strictly prohibited and will be reported.
  • Use the Services for commercial solicitation, spam, scams, or to advertise other services.
  • Use bots, scrapers, or automated means to access the Services or collect other users’ data.
  • Attempt to reverse engineer, interfere with, or compromise the security of the Services.
  • Create an account if you are a convicted sex offender, or use the Services for any illegal purpose.

9. Your content

You retain ownership of the messages and content you submit. You grant us a limited, worldwide, non-exclusive licence to host, store, transmit and display that content solely to operate and provide the Services (for example, delivering your messages to other users). You are responsible for your content and confirm you have the right to share it. We may review, moderate, or remove content and may suspend accounts that violate these Terms. You can report and block other users in the App.

10. Safety

Your safety matters. We do not verify users and are not responsible for the conduct of any user, online or offline. In Apps that let you meet or communicate with others, use good judgement, protect your personal information, and take care when arranging to meet anyone. You interact with other users at your own risk.

11. Intellectual property

The Services, including our names, logos, designs, text and software, are owned by us or our licensors and are protected by intellectual-property laws. We grant you a personal, non-transferable, revocable licence to use the Services for their intended purpose. You may not copy, modify, distribute, or create derivative works without our permission.

12. Termination

You may stop using the Services and delete your account at any time. We may suspend or terminate your access if you violate these Terms, create risk or legal exposure, or where required by law. Sections that by their nature should survive termination (including content licence, disclaimers, liability limits, and indemnities) will survive.

13. Disclaimers

The Services are provided “as is” and “as available”. To the extent permitted by law and without limiting your mandatory rights as a consumer, we do not give warranties of any kind, whether express or implied, including merchantability, fitness for a particular purpose, and non-infringement. Matching is based on the preferences you and other users set; we do not guarantee that a match will be made, that anyone will reply, or that any introduction will lead to a relationship, and we make no representation about the accuracy of what other users tell you about themselves. Where an App provides astrological or similar content (such as Synastria), it is provided for entertainment and personal insight only and is not scientific, medical, psychological, legal, financial, or relationship advice. We do not warrant that the Services will be uninterrupted or error-free.

14. Limitation of liability

Nothing in these Terms excludes or limits our liability where it cannot be excluded or limited under applicable law — including liability for death or personal injury caused by our negligence, for intentional harm or gross negligence, or your mandatory rights as a consumer. Subject to that, and to the maximum extent permitted by law, Bistriy will not be liable for any indirect, incidental, special, consequential or punitive damages, or for loss of profits, data, goodwill, or for the conduct of any user. Our total liability for any claim relating to a Service is limited to the greater of the amount you paid us for that Service in the 12 months before the claim or EUR 50.

15. Indemnification

To the extent permitted by law, you agree to indemnify and hold harmless Bistriy from claims, damages and expenses (including reasonable legal fees) arising from your use of the Services, your content, or your violation of these Terms or the rights of others.

16. Complaints and dispute resolution

You can raise any complaint about the Services by emailing support@bistriy.com. We will acknowledge your complaint and respond within 14 days. If you are a consumer, you may also use out-of-court complaint and redress mechanisms; in Poland these include the permanent consumer arbitration courts (stałe polubowne sądy konsumenckie), the municipal or district consumer ombudsman (miejski/powiatowy rzecznik konsumentów), and the Office of Competition and Consumer Protection (UOKiK, uokik.gov.pl). Using these mechanisms is voluntary.

17. Changes to these Terms

We may update these Terms from time to time. We will revise the “Last updated” date above and, where appropriate, notify you in the App. Changes take effect when posted, and your continued use of the Services means you accept the updated Terms. Where a change materially reduces your rights, we will give reasonable prior notice.

18. Governing law

These Terms are governed by the laws of Poland, without regard to conflict-of-laws rules, and the competent Polish courts have jurisdiction. If you are a consumer, you also enjoy the protection of any mandatory provisions of the law of the country in which you live, and mandatory rules on which courts may hear your dispute are unaffected.

19. Contact

Questions about these Terms? Email support@bistriy.com, or write to us at the operator address in section 1.