Alertsie is a Chrome extension and web app (alerts.belstone.com) from
Epiphani Studios ("we," "us"). It watches the pages you choose and tells you when something you care about
happens: a price drop, a restock, a page change, a promotion, a launch. Its sign-in codes feature enters the
verification code you just received by email or text into the sign-in page that asked for it. Sign-in codes
replaces our earlier Code Fill extension. Our Epiphani Studios privacy policy covers this website and your studio account.
Alerts: what we keep
Your account. Your email address, a phone number if you turn on text alerts, and your settings
(channels, quiet hours, digest).
Your alerts. Each page address you watch, its title, the condition you set, the values Alertsie
reads from that page over time (a price, stock, the watched text), and the history of alerts sent.
Usage counts. Which features are used and how often, as counts with no page content.
Alerts: where the information goes
Our service, which runs on Cloudflare, checks the pages you watch on the schedule you choose.
To judge whether a change matters, the service may send the watched text of that page to an AI model
provider through our model router. It sends the page content of your alert, never your email address.
Alerts reach you by email or text through our messaging service, and by Chrome notifications from the extension.
Amazon pages are read in your own browser, only after you allow Alertsie on that Amazon site, and the page is
sent to our service for checking.
The extension keeps a sign-in token for your Alertsie account in Chrome's extension storage.
Sign-in codes: what it reads
Sign-in codes is off until you turn it on in the Alertsie popup. While it is on, and only while a sign-in page
in front of you is waiting for a code:
Your Gmail. Alertsie reads the unread-inbox feed of each Google account signed in to Chrome, using the
Gmail session Chrome already holds. It looks at messages from the last 15 minutes: subject, preview, sender and
time. When a message plainly carries a code that its preview does not show, Alertsie opens that one message to read it.
Your texts. The Alertsie Mac helper (the former Code Fill helper) opens the Messages database on your
Mac read-only and looks through recent incoming texts for the newest verification code.
The sign-in page you are on. The extension reads the page's input fields and the wording around them
to recognize a code field.
When its own rules cannot find the code in a message that asks you to enter one, Alertsie may ask Chrome's
built-in AI model, which runs on your Mac, to point to it.
Sign-in codes: where the information goes
Sign-in codes works entirely on your Mac. A code travels from Gmail or Messages to the extension in Chrome, and
from there into the code boxes of the sign-in page you are on, the same place you would have typed it.
Only the code reaches the page. The message, its sender and its text stay inside the extension's background process.
The code fills in automatically when the email comes from the site you are on (for example, a code from
resy.com on resy.com), or when a text names the site. For any other site, Alertsie shows a "Fill code" button
and fills when you click it.
Epiphani Studios does not collect, receive, or store your emails, your texts, or your codes. Sign-in codes sends
nothing to our servers or to any third party.
What is kept on your Mac
The extension holds a code and its message in memory for the moment of filling and keeps nothing between uses.
The Mac helper writes a short log to ~/Library/Caches/codefill/host.log: the time, how old the code
was, and which route answered. The log carries no code and no message text.
Permissions you control
Website access (asked when you turn on sign-in codes). Lets the extension find a code field on any
http or https page, including embedded frames, and read your Gmail inbox feed. Turn sign-in codes off, or remove
the access at chrome://extensions, at any time.
Native messaging (asked with it). How Chrome talks to the Mac helper on your own Mac.
Full Disk Access. macOS asks once to let the helper's background job read Messages. Turn it off any time
in System Settings, Privacy & Security, Full Disk Access.
Notifications, alarms and storage let the extension check for alerts and show them.
How we use it
Alertsie uses this information only to run the alerts you set up and to enter a verification code into the page
that asked for it. We do not sell or rent it, we do not use or transfer it for any other purpose, and we do not use
it to determine creditworthiness or for lending.
Removing Alertsie and its data
Remove the extension in Chrome at chrome://extensions.
Delete your alerts in the Alertsie app, or write to us to delete your account and everything stored with it.