Privacy Policy

Byzzle (비즐) · Business Registration No. 580-20-02424
Effective: 2026-05-19 · Last updated: 2026-05-19

This Privacy Policy describes how Byzzle ("we," "us," or "our") collects, uses, discloses, and protects personal information when you use our services, including Daily8 (our daily-language-learning service delivered via WhatsApp) and any other product or website we operate (collectively, "Services").

Byzzle is a sole proprietorship registered in the Republic of Korea (사업자등록번호 580-20-02424). For privacy inquiries, contact imweb.byeola@gmail.com.

1. Information we collect

1.1 Information you provide directly

• Contact information — name, email address, WhatsApp phone number (for Daily8 message delivery).
• Account information — language preferences, subscription tier, time zone (so daily messages arrive at the correct local time).
• Payment information — handled exclusively by our payment processor (Lemon Squeezy). We do not store credit card numbers; we receive only transaction confirmations, subscription status, and partial card metadata (e.g., last four digits) for accounting purposes.
• Support correspondence — content of messages you send to our support email.

1.2 Information collected automatically

• WhatsApp delivery metadata — message delivery status (sent / delivered / read), which we receive from WhatsApp's Business API via Twilio. We do not read the content of user-initiated reply messages unless you address them to our support flow.
• Website analytics — basic page-visit information (IP address, browser type, referring URL) if you visit byzzl.com. Used in aggregate for site improvement.

1.3 Information we do NOT collect

• We do not access your WhatsApp contacts.
• We do not read WhatsApp messages exchanged between you and parties other than us.
• We do not collect biometric or special-category data (race, religion, health, etc.).

2. How we use information

We use personal information only for the following purposes:

• To deliver Daily8 messages at your chosen time and in your chosen language
• To process subscriptions, payments, renewals, and refunds via Lemon Squeezy
• To respond to support requests
• To send transactional emails (subscription confirmations, payment receipts, account-related notices)
• To comply with legal obligations (e.g., tax, accounting, anti-fraud)
• To improve the quality of our content and service (using aggregated, non-identifying data)

We do not sell your personal information. We do not use your data to train AI models without your explicit consent.

3. Legal bases for processing (GDPR — EU/UK users)

If you are in the European Economic Area or the United Kingdom, our legal bases are:

• Contract — processing necessary to provide Daily8 to you (Article 6(1)(b) GDPR)
• Legitimate interest — secure operation of our Services, fraud prevention, basic analytics (Article 6(1)(f))
• Legal obligation — tax and accounting record-keeping under Korean and applicable foreign law (Article 6(1)(c))
• Consent — for any optional marketing communications you opt into (Article 6(1)(a))

4. How we share information

We share personal information only with the following categories of recipients, and only as necessary:

• Lemon Squeezy (payment processing & Merchant of Record). Lemon Squeezy handles your payment, sales tax / VAT compliance, and issues receipts. See Lemon Squeezy's privacy policy at lemonsqueezy.com/privacy.
• Twilio & Meta (WhatsApp Business) — your WhatsApp phone number and message content are processed by Twilio (as our WhatsApp BSP) and Meta Platforms (as the WhatsApp service operator) for the sole purpose of message delivery. See Twilio's privacy policy and WhatsApp's privacy policy.
• Hosting and infrastructure providers — providers we use to operate the Service (e.g., cloud hosting, database). These providers process data only on our instructions, under written data-processing agreements.
• Legal authorities — only when required by law, court order, or to protect our legal rights.

We do not sell, rent, or trade personal information to third parties for their own marketing.

5. International data transfers

Byzzle is based in the Republic of Korea. Some of our processors (Lemon Squeezy, Twilio, Meta) are based in or transfer data to the United States and other jurisdictions. Where required by law, we rely on appropriate safeguards, including the European Commission's Standard Contractual Clauses for transfers out of the EEA, and contractual data-protection commitments from our processors.

6. Data retention

We retain personal information only as long as needed for the purposes for which it was collected:

• Subscription & phone number — for as long as your subscription is active, plus 30 days after cancellation (to handle reactivation and chargebacks)
• Payment records — at least 5 years, as required by Korean tax law (전자세금계산서 보관 의무)
• Support correspondence — up to 2 years from last contact
• Analytics — aggregated and anonymized after 13 months

7. Your rights

Depending on where you live, you may have the following rights regarding your personal information:

• Access — request a copy of the personal data we hold about you
• Correction — ask us to fix inaccurate information
• Deletion — ask us to delete your information (subject to legal retention requirements)
• Portability — receive your data in a machine-readable format
• Restriction or objection — limit how we process your data
• Withdraw consent — for any processing based on consent, at any time
• Lodge a complaint with your local data-protection authority (e.g., in Korea, the Personal Information Protection Commission; in the EU, your national supervisory authority)

To exercise any of these rights, email us at imweb.byeola@gmail.com. We will respond within 30 days (or sooner where required by law).

To unsubscribe from Daily8 messages: reply STOP (English), 구독해지 (Korean), or CANCELAR (Spanish) to any of our WhatsApp messages. You can also email us.

8. Children's privacy

Our Services are not directed to children under the age of 16. We do not knowingly collect personal information from children under 16. If we learn we have collected such information, we will delete it promptly.

9. Security

We implement reasonable technical and organizational measures to protect personal information: encryption in transit (HTTPS), encryption at rest for sensitive fields, access controls, and regular security reviews. However, no method of transmission or storage is 100% secure; we cannot guarantee absolute security.

10. Cookies & tracking

Our website (byzzl.com) uses only essential cookies necessary for site function. We do not use third-party advertising cookies. If we add analytics or other optional cookies in the future, we will obtain consent where required by law.

11. Changes to this policy

We may update this Privacy Policy from time to time. When we make material changes, we will notify subscribers via WhatsApp or email at least 14 days before the changes take effect. The "Last updated" date at the top of this page reflects the most recent revision.

12. Contact

Byzzle (비즐)
서울특별시 관악구 신원로3다길 9, 302호 (신림동)
9, Sinwon-ro 3da-gil, Gwanak-gu, Seoul, Republic of Korea
사업자등록번호: 580-20-02424
Email: imweb.byeola@gmail.com