JSTJO is built on saying what things actually cost. That applies to your data too. We collect the least we can, we never sell it, and you can delete all of it in one tap. This page says exactly what is held and who touches it.
JSTJO is operated by JSTWRLD. Contact: iamhuman@jstjo.ai. For anything about your data — a copy, a correction, or deletion — write to that address and we will answer within 30 days.
| What | Why | Where it lives |
|---|---|---|
| Email address | To create your account, run your 14-day trial, and email you before any charge | Supabase |
| Username | So JSTJO can address you. Optional | Supabase |
| Trial start date | To know how many days are left | Supabase |
| Subscription status and tier | To open the right features | Supabase + Stripe |
| Your messages to JSTJO | To generate the answer | Sent to Anthropic. Not stored on our servers |
| Donation amount and chosen charity | To run the public impact counter | Supabase + Stripe |
| Drops used, game progress, preferences | To show your counter and settings | Your own browser only |
When you send a message, it is transmitted to Anthropic to produce the answer. We do not keep a copy of your conversations on our servers. Your chat history is stored in your own browser so it is there when you return — clearing it removes it.
If a question needs current information, JSTJO performs a web search. Search queries are derived from your question and are sent to the search provider through Anthropic. Do not paste passwords, card numbers, government ID numbers, or other secrets into any AI, including this one.
These are held in local storage on your device. No cookies are used for tracking, and there is no advertising or third-party analytics pixel on this site.
Only these, only for the job listed, and none of them are paid for your data:
| Service | What they handle |
|---|---|
| Anthropic | Processes your messages to generate answers |
| Stripe | Payments, subscriptions, and card details |
| Supabase | Stores your account record |
| Vercel | Hosts the site and its server functions |
| Resend | Sends the trial reminder email |
We do not sell your data. We do not share it with advertisers, data brokers, or anyone else for money. There is no exception to this and no plan to add one. We would disclose information only if legally compelled by a valid order, and only what that order actually requires.
Wherever you live, you can ask us to:
Email iamhuman@jstjo.ai. We do not charge for this and we will not make it difficult. If you are in the UK or EU, you also have the right to complain to your data protection authority. If you are in California, we do not sell or share personal information as those terms are defined under the CCPA.
Delete everything yourself, right now. Open the unlock panel on JSTJO and choose "Forget everything." That clears the conversations, drops, and preferences held in your browser immediately. To also remove your account record from our database, email us and we will action it within 30 days.
No system is perfectly secure, and anyone who tells you otherwise is selling something. If we ever discover a breach affecting your data, we will email you and publish what happened.
JSTJO is not intended for anyone under 13, and we do not knowingly collect data from children. If you believe a child has given us information, email us and we will delete it.
Our providers operate servers in the United States and elsewhere, so your data may be processed outside your country. Transfers rely on the standard contractual clauses those providers maintain.
If this policy changes in a way that materially affects you, we will update the date at the top and tell you by email before it takes effect.