Your data is used only for the mosque.

Al Muttaqin Cultural Center (Masjid Al-Muttaqin) (the "Center", "we") operates the website almuttaqinculturalcenter.org and the Jamaah app. We handle personal information in accordance with the Act on the Protection of Personal Information of Japan (Act No. 57 of 2003, as amended) and the principles below.

1. Business operator handling personal information

The business operator responsible for personal information collected through this website and app is Al Muttaqin Cultural Center (Masjid Al-Muttaqin), Matsudo City, Chiba Prefecture (full street address to be announced), 271-0092, Japan. Contact: info@almuttaqinculturalcenter.org.

2. Personal information we collect

We only collect information that you actively provide or that is technically required to deliver a service you asked for.

• Contact form: name, email address, subject, and the content of your message.
• Event registration and room booking forms: name, contact details (email, phone, or WhatsApp), number of participants, and any note you add.
• Donation confirmation form: name, contact details, amount, transfer date, and an optional receipt request. We never ask for bank card numbers or passwords.
• Push notifications: a browser subscription endpoint and encryption keys generated by your browser, your language, and your notification preferences. These do not identify you by name.
• Analytics: aggregated, cookie-free page statistics (page URL, referrer, country, device type). No IP address or fingerprint is stored.
• Server logs: IP address and user agent are processed briefly for rate limiting and spam protection and are not kept in a database.

3. Purposes of use

Under Article 17 of the APPI we specify the purposes of use as clearly as possible. We use personal information only for the following purposes and not for advertising or sale.

• Replying to inquiries and arranging visits, media requests, volunteering, or partnerships.
• Managing event registrations, waiting lists, and room bookings, and contacting you about changes.
• Recording donations, issuing receipts on request, and preparing the monthly financial report (published only as totals, never with donor names unless you expressly agree).
• Sending prayer-time, Jumuah, and announcement notifications that you have switched on.
• Understanding which pages are useful so we can improve the site.
• Preventing spam, abuse, and unauthorized access.

4. Consent and lawful handling

Every form asks for your explicit consent before submission. We do not acquire personal information by deceit or other improper means, and we do not use it beyond the stated purposes without your prior consent, except where permitted by law (for example, when required by a court or public authority).

5. Where and how long data is stored

Form submissions and push subscriptions are stored in a Supabase database hosted in a data center in the Asia-Pacific region, and the website is served by Vercel. Both providers apply industry-standard encryption in transit and at rest. Because these servers may be located outside Japan, we rely on the providers' contractual safeguards as required for cross-border transfers under Article 28 of the APPI.

• Contact messages: deleted within 12 months after the inquiry is closed.
• Event registrations and bookings: deleted within 6 months after the event.
• Donation confirmations: kept for 7 years for accounting purposes, as required by Japanese bookkeeping rules.
• Push subscriptions: deleted when you turn notifications off, or automatically after 90 days without a successful delivery.

6. Third-party services

Some parts of the site load content from other providers. When you use these features, the provider may process your IP address and browser information under its own privacy policy.

• YouTube (Google): embedded lecture videos and live streams are loaded in privacy-enhanced mode and only after you press play.
• OpenStreetMap: map tiles for the access map and the halal guide.
• Cloudflare Turnstile: spam protection on forms, which processes browser signals without tracking cookies.
• WhatsApp (Meta): only if you choose to send a message through a WhatsApp button; the message text is composed on your device.

7. Provision to third parties

We do not sell, rent, or share personal information with third parties. Information is disclosed only to the volunteers on the board who need it to reply to you, to service providers acting on our instructions (Supabase, Vercel), or where disclosure is required by law.

8. Cookies and local storage

This site does not use advertising or tracking cookies. Your browser stores only a few preferences locally.

• Language preference (ja, en, id), so the site opens in your language next time.
• Theme preference (light, dark, or automatic after Maghrib).
• Offline cache of prayer times and pages for the Jamaah app, kept on your device by the service worker.
• Dhikr counter and app settings, kept only on your device.

9. Your rights

Under Articles 33 to 35 of the APPI you may ask us to disclose, correct, add to, delete, or stop using personal information that identifies you. You may also withdraw consent at any time; this does not affect processing that already took place.

• Send your request to info@almuttaqinculturalcenter.org with the subject "Personal information request".
• We may ask for simple verification, such as replying from the same email address you used.
• We respond within two weeks. There is no fee.
• Push notifications can be switched off at any time in the app settings or your browser.

10. Security measures

We take reasonable organizational and technical measures to prevent leakage, loss, or damage of personal information.

• All connections use HTTPS; databases are encrypted at rest.
• Access to submitted data is limited to designated board members with individual accounts and roles.
• Rate limiting, honeypot fields, and Turnstile reduce automated abuse.
• Volunteers who handle personal information are briefed on this policy and the APPI.

11. Children

Registrations for the children's Quran school and youth programs are submitted by a parent or guardian. We do not knowingly collect personal information directly from children under 13.

12. Changes to this policy

We may update this policy when the site gains new features or when the law changes. The effective date at the top of this page shows the latest version, and material changes are announced on the news page.

13. Contact for personal information

Al Muttaqin Cultural Center (Masjid Al-Muttaqin), Matsudo City, Chiba Prefecture (full street address to be announced), 271-0092. Email: info@almuttaqinculturalcenter.org. You may write in Japanese, English, or Indonesian.