Common questions
Twelve answers to help you use PiPi Worlds, prepared by the operator. If your question isn't here, the contact page reaches the operator directly.
What is PiPi Worlds?
PiPi Worlds (pipi-worlds.com) is a site of tools and guides operated by PiFl Labs. It offers calculators and converters, shared group scheduling, and reading material. Available features and articles can differ by language.
How accurate are the calculators?
Each tool has its own assumptions and limitations. Some calculation logic is covered by automated tests, but passing tests does not guarantee every result or constitute expert review. For important medical, legal, or financial decisions, check current guidance from the relevant authority and consult a qualified professional. See the Terms of Service for intended use.
How are my inputs handled? Are they sent to your server?
Calculators and converters generally run in your browser. Group scheduling is different: meeting titles, proposed times, participant names and availability are stored on a server; usage events and temporary request-limiting records are also used. If you share a result URL, its values reach the recipient, and query strings may appear in server requests or logs. Do not put sensitive details in shared URLs or meeting titles. See the Privacy Policy for what is stored and for how long.
Where do ads appear?
This FAQ and the tool pages currently do not display ads. Ads may be enabled on selected articles after review; that does not mean AdSense approval or revenue is confirmed. For third-party cookies on pages where ads are enabled, see the Privacy Policy. You can manage personalized ads in Google Ad Settings.
Is this content AI-generated?
AI tools may help draft or edit an article. Source links and automated checks are starting points, not proof that every article has received human or specialist fact review. For consequential numbers or rules, check the linked original source and its latest update yourself. If you find an error, send us the page URL. See the About page for our operating principles.
The same article exists in Korean, Japanese, and English. Is that machine translation?
Topics and examples may differ by language. We aim to check local sources and rules even when the topic is shared, but cannot guarantee that every article was written independently or reviewed for each market. Check the sources and publication or update date on the article you are using.
I'd like to suggest a new tool or topic.
Please do — email support@pifl-labs.com or use the contact page. Topics with search demand across Korean, Japanese, and English markets — and where the right answer differs by market — get priority.
I found an error or typo.
Calculator bugs, factual errors, typos and broken links are all welcome. Please include the page URL and steps to reproduce when possible. We review reports and assess whether a correction is needed. Reply and correction times depend on the issue and our workload.
Can I quote or translate the articles?
Short excerpts with attribution (URL or site name) are fine. Reproducing whole articles or large blocks of text without permission isn't allowed. For commercial translation or republication, please email first. The tool source code is built for this site's operation and isn't separately licensed.
How does the site handle mobile, dark mode, and accessibility?
The site supports mobile screens and light and dark themes. We check and improve keyboard and screen-reader access page by page. If a screen or interaction is difficult to use, please send the page URL and your device or browser details.
How do I save?
Use “Save for later” on an article, then open Your saved articles. Only the article path is kept in this browser, with a separate list for each language. It does not sync to another device or app and does not download the article for offline reading. See how saved articles are stored.
Why is my list empty?
First check that you are using the same browser profile, site address and language as when you saved. Clearing site data or private browsing may lose the list. If JavaScript or browser storage is unavailable, use browser bookmarks instead. Saved articles that no longer meet our publication and review conditions are not displayed. There is no restore function for a cleared list.