There is no ticket system and no bot standing between you and an answer. One address, one person, and most things below you can solve in under a minute.
A person reads every message. Usually answered within 24 hours, and always within 2 business days.
Open the receipt email from Stripe and click Manage subscription — cancel there in two taps. Or email us and we will do it for you the same day.
You keep full access until the end of the period you have already paid for. We do not prorate away time you bought.
Within 14 days of a charge, email us and we refund it. No form, no questions about why, no attempt to talk you out of it.
After 14 days we look at it case by case and we lean towards yes. Refunds land back on your card in 5–10 business days depending on your bank.
Email us with the date and amount and we will sort it, including a refund if the charge was wrong. Please write to us before opening a bank dispute — we can fix it faster than they can, and a dispute freezes the money for weeks.
Charges from us appear as JSTWRLD or JSTJO on your statement.
Free — 50 drops a month and 3 runs of WTRWRLD a day. Free forever, no card.
JSTJO — $9.99/month or $90/year. Unlimited drops, JSTJO remembers you, JST+OPT$ opens.
JSTPRO — $19/month or $171/year. All of the above plus the CTRL+GO! site builder.
Yearly is three months free either way. 5% of everything funds clean water and you pick the charity.
One answer costs one drop. It is not a made-up currency — every AI answer uses real water to cool the servers and to generate the electricity behind them, roughly 10 to 50 millilitres per reply.
Most AI companies do not tell you this. We put it on the counter and on the send key. Free drops refill on the 1st of each month, and you can catch more in WTRWRLD.
The counter lives in your browser, so it is per-device and clearing your browser data resets it. If a number looks wrong, email us with a screenshot and we will correct it.
Your chat history is stored in your own browser, not on our servers. Messages are sent to Anthropic to generate the answer and are not sold, mined, or used for advertising.
Open the unlock panel and choose Forget everything to wipe it instantly. Full detail in the privacy policy.
It can happen. JSTJO searches the web and cites sources, and it is still capable of being confidently wrong. Check anything important before acting on it, especially medical, legal and financial information.
If you catch a bad answer, send it to us. We read every one and it is how the system gets better.
First try a hard refresh, since your browser may be holding an old copy of the page. On desktop that is Ctrl+Shift+R, on Mac Cmd+Shift+R.
If it persists, email us with what you were doing, what happened, and your browser. A screenshot helps more than a description.
iPhone: open jstjo.ai in Safari, tap Share, then Add to Home Screen.
Android: tap the install prompt when it appears, or use the browser menu and choose Install app.
It opens fullscreen with no browser bars. There is nothing to download and no app store involved.
To clean water charities, and members choose which one. The counter on the homepage reads a real total from our database — at zero it says zero, because a number we cannot prove is worth nothing.
We log every transfer out. Ask us for receipts any time and we will send them.
Same address. Put PRESS, PARTNER or SECURITY at the start of the subject line and it gets read first.
If you have found a security issue, please tell us before telling anyone else. We will respond within 48 hours and we will credit you.