SAYN reads your Instagram follower data inside your own browser, using your own logged-in session, and shows it back to you. There is no SAYN server. There is nothing to send data to, so nothing is sent.
Data moves in a closed loop between Instagram and your browser's own storage. SAYN's developer never sees it, and it never leaves your device.
SAYN is a browser extension with a single purpose: it reads follower and following data from your own, already-logged-in Instagram session and shows you analytics you can't easily see in the Instagram app itself — accounts that don't follow you back, ghost followers, new and lost followers, blocked accounts, who's hidden from your story, and similar views.
SAYN does not create an Instagram account, does not have its own servers, and does not act on your behalf anywhere except inside the instagram.com tab you already have open.
To build the analytics it shows you, SAYN reads:
SAYN never asks for or has access to your Instagram password. It piggybacks on the authenticated session your browser already has open with Instagram, the same way instagram.com's own page scripts do.
Everything SAYN reads or lets you annotate is written to your browser's own local storage on your device, scoped to the extension. Nothing is transmitted to SAYN's developer, to Instagram beyond the requests Instagram's own web client would already make, or to any other third party. SAYN has no backend server to send it to.
SAYN requests the minimum browser permissions needed to work, each for one specific reason:
Data stays in your browser's local storage until you remove it yourself. You can clear everything SAYN has stored at any time from the Settings → Danger Zone → Clear All SAYN Data option inside the extension, or by removing the extension entirely, which deletes its storage along with it.
Uninstalling SAYN from your browser is a complete, permanent deletion — there is no copy anywhere else to remove, because none was ever made.
SAYN is not directed at children and is not knowingly used to collect information from children. It requires an existing, logged-in Instagram account, and Instagram's own terms set the minimum age for that account.
If SAYN's data practices ever change, this page will be updated and the "Effective" date at the top will change with it. Continuing to use SAYN after an update means you accept the revised policy.
Questions about this policy or how SAYN handles data can be sent through the support link on SAYN's Chrome Web Store listing page.