Privacy Policy
Water Kiwoogi (https://waterkiwoogi.com) · Effective September 27, 2026
Water Kiwoogi is an aquarium simulator you use without an account. There are no fields for your name, email or phone number, and we handle only the minimum needed to run and improve the site. Here is what we handle, why, and for how long.
1. Stored only in your browser
These stay in your browser’s storage (localStorage / sessionStorage) and are never sent to our server. Clearing the site data in your browser removes them.
- Tank designs you make with their names and your keeper name (nickname), and the real-tank records you enter in tool mode (test readings, what you did)
- Display settings (language, light/dark, collapsed preview)
- Your feedback-board nickname, and a random value that lets you agree with or report a post only once
Share links — when you press "Share", the tank’s design, name and keeper name are packed into the link itself. We do not store them on our server, but anyone who gets the link can see them. We suggest a nickname rather than your real name.
2. Sent to and stored on our server
Tank gallery — if you post a tank to the gallery, we store its share code (the tank design, tank name and keeper name), the posting date, like and report counts, language, country code, a random removal key that only your browser holds, and a per-tab random session value used to limit flooding. The tank is shown publicly. It stays until you press "Take down" or the operator removes it.
| What | Contents | Why | Kept for |
|---|---|---|---|
| Anonymous usage stats | Event names such as "opened a screen" or "ran a simulation", run counts, time spent, last screen viewed, language, device type (mobile/desktop), country code, and a random session value that disappears when you close the tab | To learn whether people actually redesign and finish tool input, so we can improve the site | 2 years |
| Feedback board posts | Your text, nickname (optional), post type, public / developer-only choice, language, the screen you were on, country code, a random session value. If you turn on "send my current design", that design and your last result (ending, score, length) | To receive reviews, bug reports and wishes and improve the demo | Public posts while they are posted; developer-only posts 2 years. Deleted on request |
We do not store your IP address or browser details (User-Agent). Only a country code is kept. A design you attach is seen only by the developer, even on a public post. Real-tank records from tool mode are never sent.
Public posts on the feedback board can be read by anyone, together with your nickname. Please don’t write personal details such as your name or contact information.
3. Service providers
| Who | What they do |
|---|---|
| Cloudflare, Inc. | Hosting, the stats and board database (Asia-Pacific region), the human check when you post (Turnstile), and automatic spam/abuse screening of public posts (Workers AI). Cloudflare may process your IP address and browser signals during the human check and in transit — Cloudflare Privacy Policy |
4. Ads and affiliate links
To cover running costs, this site may show ads and affiliate links.
- Ads (Google AdSense) — Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet. You may opt out of personalized advertising in Google Ads Settings. See how Google uses information in ads. Visitors in the EEA, the UK and Switzerland are asked for cookie consent first.
- Affiliate links — If you buy something through a product search link next to equipment or chemicals, the developer may earn a commission from the seller. Your price does not change. Links lead to search results for that specification, not a specific product, and commissions never affect the simulation or its diagnosis. As an Amazon Associate, the developer earns from qualifying purchases. Once you follow a link, the seller’s (and affiliate network’s) privacy policy applies.
5. Your rights
You can ask to see or delete a board post you wrote. Posts carry no name, so please tell us what the post said or when you wrote it. You can remove values stored in your browser yourself by clearing this site’s data in your browser settings.
6. Children
The site has no fields for personal information and does not check ages. Parents, please help children under 14 avoid writing personal details in board posts.
7. Contact
Privacy contact: the Water Kiwoogi developer (individual)
How to reach us: the Feedback tab → Write → Developer only
8. Changes
If this policy changes, we will post the new version here with its effective date.