Privacy
Short version: almost nothing, because almost nothing leaves your computer. This page says exactly what does, and there is not much of it.
Last updated 27 August 2026.
Seston has no sign-up, no licence key and no user identity. It does not send telemetry, usage statistics, crash reports or analytics of any kind. Nobody — including us — can tell that you have installed it, opened it, or what you did with it.
Your recordings, session files, generated audio and everything you do to them stay on your own machine. They are never uploaded, and there is no server to upload them to.
Unless you switch it off in Preferences, Seston asks GitHub once a day what the latest
published version number is. The request goes to
api.github.com and carries nothing but the fact that a copy of Seston of a
given version is asking — which, like any web request, means GitHub sees the IP
address it came from. No identifier of you or of your installation is sent.
Copies installed from the Microsoft Store do not do this at all: the Store updates them itself.
This feature is the exception to everything above, and it only does anything while you are using it. When you generate a voice, the text you typed and your own ElevenLabs API key are sent to ElevenLabs, over HTTPS, and nowhere else. What ElevenLabs then does with them is governed by their privacy policy and your account with them. Seston has no account there and no part in the transaction.
If you never use Generate Speech, nothing about it ever runs and nothing is ever sent.
The ElevenLabs key you enter is encrypted with Windows' own data protection under your user
account, so the file that holds it cannot be read from another account on the same machine
and is worthless on any other. It is not kept in settings.json, it is never
written to a session file, a log or the status bar, and it is never shown again after you
enter it. Remove the key deletes it.
It is sent to ElevenLabs and to nowhere else. There is nowhere else for Seston to send it.
seston.app carries no analytics, no tracking scripts and no advertising, and sets no cookies. Your browser stores one thing locally — whether you chose the light or the dark theme — and that never leaves your browser.
The download links point at GitHub, and the version number shown on the home page is read from GitHub by your browser, so GitHub sees that request the way it sees any other. The site is hosted on Cloudflare Pages, which keeps ordinary server logs of requests made to it.
Seston is a tool for making radio and podcast programmes. It is not directed at children and collects nothing from anybody, of any age.
If any of this changes, this page changes with it and the date at the top moves. A change that means more data leaving your machine would also be written in the release notes, because it is the kind of thing somebody should not have to discover.
Questions about any of it: open an issue.
Seston