PRIVACY POLICYLast updated: 09.14.2026
This Privacy Policy explains how Karina Kuper Rivkin ("we," "us," "our"), operating the Biophonics vocal training brand through biophonics.la, biophonics-school.com and our checkout pages, collects and uses your information.
Information we collect. Information you provide: your name, email address, and billing details when you register, purchase, or contact us. Information collected automatically: device and usage data, IP address, and information from cookies and similar technologies.
Payment information. Payments are processed by Stripe and PayPal. Your full card details are entered directly with those processors and are not stored by us. We receive only limited transaction information (such as confirmation of payment).
How we use your information. To deliver our products and services, provide access to courses and sessions, process payments, respond to your requests, send you service and marketing emails, improve our offerings, and comply with legal obligations.
Cookies and tracking. We use cookies and tracking technologies, including the Meta (Facebook) Pixel and Yandex Metrica, to understand site usage and to measure and improve advertising. You can control cookies through your browser settings.
Email. We use SendPulse to send emails. You can unsubscribe at any time using the link in any email.
Sharing. We share information only with service providers that help us operate, including Stripe and PayPal (payments), Teachable (course delivery), SendPulse (email), and Meta and Yandex (analytics and advertising). We do not sell your personal information.
Data retention. We keep your information for as long as needed to provide our services and meet legal requirements, then delete or anonymize it.
Your rights. Depending on your location, you may request access to, correction of, or deletion of your personal data, and object to certain processing. Residents of the EU and UK have rights under the GDPR, and California residents have rights under the CCPA, including the right to opt out of the sale or sharing of personal information. To exercise any right, contact coopervocalmgmt@gmail.com.
Children. Our products are intended for adults. Minors may use them only with the consent and supervision of a parent or legal guardian. We do not knowingly collect personal information from children without such consent.
International transfers. We operate from the United States. If you access our services from outside the US, your information may be processed in the US.
Security. We take reasonable measures to protect your information, though no method of transmission or storage is completely secure.
Changes. We may update this policy and will post the new version here with a new date.
Contact. Karina Kuper Rivkin, California, USA. Email:
coopervocalmgmt@gmail.com .
TERMS & CONDITIONSLast updated: 09.14.2026
These Terms govern your use of biophonics.la, biophonics-school.com, our checkout pages, and all products and services offered by Karina Kuper Rivkin ("we," "us," "our"). By purchasing or using our products, you agree to these Terms.
Eligibility. You must be at least 18 years old to purchase. Minors may use our products only with the consent and supervision of a parent or legal guardian, who accepts these Terms on their behalf.
Products and services. We offer digital video courses, vocal warm-up sets, online masterclasses, one-on-one online coaching, and in-person classes and masterclasses. Specific inclusions and access periods are described at the point of purchase.
Access and accounts. Digital products are delivered through Teachable and are available for the access period stated for each product. Access is personal to you.
License and intellectual property. All content, including videos, exercises, warm-ups, tracks, sheet music, books and materials, is the property of Karina Kuper Rivkin and the Biophonics method and is protected by copyright. On purchase you receive a personal, non-transferable, non-exclusive license for your own use only. You may not copy, record, screen-capture, download (except where expressly permitted), share, resell, publish, or use our materials to teach or create derivative products, in whole or in part. Any such use is a violation of these Terms and of our intellectual property rights.
Payment and pricing. Prices are shown at checkout and processed by Stripe and PayPal. Where available, installment options are offered at checkout through third-party providers. You are responsible for any taxes that apply to you.
Refunds. All sales are final, subject to our Refund Policy.
One-on-one and live sessions. Private sessions and feedback are provided within the window stated for the product. Sessions are scheduled by agreement. Missed or late-cancelled sessions are not refunded or rescheduled unless we agree otherwise.
Health disclaimer. Our products provide vocal training and education. They are not medical advice, diagnosis, or treatment, and are not a substitute for care from a qualified professional. Any body, breathing, or manual techniques described are educational and performed at your own risk. Consult a physician before beginning if you have any health condition, injury, pregnancy, or concern. You participate at your own risk.
No guarantee of results. Vocal progress depends on many personal factors. We do not guarantee any specific result.
Limitation of liability. To the maximum extent permitted by law, we are not liable for any indirect, incidental, or consequential damages arising from your use of our products. Our total liability is limited to the amount you paid for the product in question.
Governing law. These Terms are governed by the laws of the State of California, USA, without regard to conflict of law rules.
Changes. We may update these Terms and will post the new version here with a new date.
Contact. Karina Kuper Rivkin, California, USA. Email: coopervocalmgmt@gmail.com
REFUND POLICYLast updated: 09.14.2026
All sales are final. Because our products are digital and delivered with immediate access, and to protect our intellectual property against unauthorized sharing and resale, all sales are final and no refunds are issued, except as set out below.
Exceptions. We will review and, where appropriate, correct or refund in these cases: a duplicate or accidental charge; or a technical problem on our side that prevents you from accessing a product and that we are unable to resolve. To request a review, email
coopervocalmgmt@gmail.com within 14 days of purchase with your order details.
Immediate access and consumer rights. By purchasing and accessing a digital product immediately, you consent to immediate delivery and, where applicable under EU, UK or other consumer law, acknowledge that you lose any statutory right of withdrawal once access begins.
One-on-one and live sessions. Payments for private sessions, coaching, and live participation are non-refundable. Missed or late-cancelled sessions are not refunded, though we will try to reschedule where reasonable.
Contact. For any billing question, email
coopervocalmgmt@gmail.com