Privacy

Last updated: September 2026.

No accounts, nothing sold or shared

There's no login or signup anywhere in the Vibistic portfolio. We don't sell or share any data with anyone, including advertisers or data brokers.

The visitor counter

Every Vibistic app shows a small counter with two numbers: how many people have ever visited that app, and how many are on it right now. To count a visit only once per visitor rather than once per page view, each app's server computes a one-way cryptographic hash of your IP address and browser's user-agent string, combined with a secret value only this server knows. That hash (never your raw IP address) is what gets stored, alongside which app it belongs to and when it was first seen.

This hash is a pseudonymous technical identifier, not an anonymous one in the strictest sense, and we want to be precise rather than say "no data is collected" when that wouldn't be accurate. It cannot be reversed back into your IP address or user-agent without the secret value, it's never linked to any account (there are none), never linked to anything you type or read on any Vibistic app, and it's used for nothing beyond this aggregate count. No cookie is set and nothing is stored in your browser for this feature.

This is a best-effort, decorative counter, not a precise analytics platform: the same person can be counted more than once (a change in network or device looks like a new visitor), and multiple people sharing one network connection can be undercounted.

Separately, your IP address is briefly checked, in memory, against a rate limit before a visit is counted: standard abuse-prevention against automated flooding, the same way most websites protect any public endpoint. This check does not write your IP address to any database or log of ours; it's distinct from the stored hash described above, which never contains your raw IP address at all.

Theme preference

Clicking the light/dark/system icon in the header saves your choice in a small cookie namedvibistic-theme. It stores only which of those three you picked, nothing else, and it's shared across every Vibistic subdomain (learn., classroom., circuits., visa., passport., and vibistic.com itself), so your choice looks the same everywhere in the portfolio rather than resetting each time you move between apps. It's set only when you click the icon yourself, or once, automatically, to carry an existing preference forward from before this cookie existed, is never used for tracking or analytics, and is never linked to anything else you do here.

Questions

If you have questions about this, reach out via the contact details on any Vibistic app.