Contact
Bug reports on tools and articles, suggestions for new tools, advertising and content partnerships, privacy-related requests — all inquiries go through the email below. We reply within 1–3 business days.
To avoid spam filters, please prefix your subject line with [PiPi Worlds]. For bug reports, include the page URL, your browser and OS, and the steps to reproduce — we aim to fix and redeploy within 5 business days. Advertising and partnership inquiries go through a separate priority queue.
Operator — PiFl Labs
- Legal entity: PiFl Labs Co., Ltd. — registered in South Korea
- AdSense payee: PiFl Labs Co., Ltd. (Publisher ID:
pub-8270068056632801) - Support email: support@pifl-labs.com
- Studio website: pifl-labs.com
- Place of business: South Korea
PiFl Labs is an indie studio building calm, useful tools and writing for long-tail search in Korean, Japanese, and English. We run PiPi Worlds alongside several other tool sites and mobile apps. For our editorial process and operating principles, see the About page.
What to write about
- Tool result or calculation errors (include steps to reproduce + your browser/OS for fastest response)
- Typos, factual errors, or source updates in articles (include the article URL)
- Suggestions for new tools or topics (please note which market — Korean/Japanese/English — would benefit)
- Advertising and content partnerships (please attach a proposal, your domain, and budget for quick review)
- Privacy-related requests — access, correction, or deletion requests are handled per our Privacy Policy
- Copyright or trademark infringement reports (include the URL and supporting evidence)
Response SLA
- General inquiries: reply within 1–3 business days
- Tool result errors: fix and redeploy within 5 business days when reproducible
- Privacy requests: reply within the statutory window (10 days from receipt)
- No reply received? Check your spam folder, then resend after 7 business days