Privacy

Last updated: 10 November 2026

What the site collects

Nothing that identifies you. Kostia.ai uses no advertising cookies, no tracking tools and no visitor accounts. No form asks for personal data.

What stays in your browser

For convenience, your browser stores your theme, playback speed and where you stopped in each recording. This never leaves your device; clear the site data to remove it.

Hosting

The site and audio files are hosted by Cloudflare, which technically processes visitors' IP addresses to deliver pages and protect the service from abuse.

AI-cloned voice

Some recordings are read by a synthetic voice cloned from Constantin's voice, with his consent and from his own texts. They are always labelled "AI voice". Demo content is labelled "Demo" and uses a standard synthetic voice.