StashLane — Privacy Policy

Last updated: 14 November 2026 · Operated by BiLingoPlus LLC (Wyoming, USA)

The short version: StashLane runs inside your own Google account. It reads only the email you have open, and only when you open StashLane on it, and saves it to your own Notion workspace through Notion’s API, or as a PDF to your own Google Drive™. Nothing from your emails is sent to BiLingoPlus; we run no server for StashLane. Besides Notion, the one outside service it talks to is Paddle, our payment provider, and only to check a Pro subscription. No ads, no selling of data, no AI processing of your email.

This policy is about the StashLane add-on for Gmail™, which saves emails to Notion databases. The web pages describing it, on bilingoplus.com, are measured with Google Analytics like the rest of the site: see the website privacy policy. Nothing from the add-on or your emails is sent to Google Analytics.

Where StashLane runs

StashLane is a Google Workspace™ add-on built with Google Apps Script. Its code runs on Google’s servers under your Google account, the same way a script you wrote yourself would. It reads the open email through Google’s own services and calls Notion’s API, and Google Drive’s, directly from there. BiLingoPlus runs no server that your email passes through, and we never receive a copy of it.

What it reads

Only the email you have open (gmail.addons.current.message.readonly), and only when you open StashLane on it: the subject, the sender, the To and Cc recipients, the date, the Message-ID header (for the link back to the email), the plain text, and the names and sizes of its attachments. When you press Save PDF, also the email’s formatted text. When you save with Pro’s attachments switch on, the attachments themselves; with Pro’s Save the whole conversation, the other emails of that conversation. StashLane cannot list, search or open any other email in your mailbox, and it does nothing while you are not using it.
The Notion databases you shared with it: their names, and the names and types of their properties, so you can pick a database and choose what goes into each field. In Notion’s own window you select which pages and databases StashLane may use; Notion does not let it see anything else in your workspace.
Your Google account email address (userinfo.email), to match a Pro subscription to your account and to fill in the checkout email.

StashLane cannot send email, change, label, move or delete your emails, or read your contacts.

Where your email goes

To your Notion workspace, when you press Save to Notion: a new page in the database you picked, holding what you chose: the fields you mapped (such as the subject, the sender, the recipients, the dates, the Gmail link, the first lines or the attachment names), a quote with From, To, Cc and the date, a link back to the email in Gmail, the email text if that switch is on, and with Pro the attachments and the rest of the conversation. It is sent from Google to Notion’s API over HTTPS, under the Notion connection you made. Once it is in Notion, Notion’s own terms and privacy policy and your workspace’s settings apply to it.
To your Google Drive, when you press Save PDF: a PDF of the email in a folder called StashLane in your own Drive (drive.file). StashLane can reach only the folder and the files it made itself, not the rest of your Drive.

What it stores

StashLane keeps a few small records in your own Google account (Apps Script user properties, private to you and to StashLane):

Your Notion connection: the access token and refresh token Notion gives StashLane, and the workspace name and icon, so you do not have to sign in to Notion every time.
Settings: the last database you used, whether to copy the email text and attachments, your field choices for each database (including any fixed values you typed), a list of the names and IDs of your shared databases kept for up to 10 minutes, and the ID of the StashLane folder in your Drive.
Saved emails: the Gmail message IDs of the last 300 emails you saved, each with the link to its Notion page and the time, so StashLane can show Already saved. Not their contents.
Counts: how many emails you saved this month (for the free plan’s 30 saves), how many saves have gone well and when the first one was made (to ask, at most a few times, for a review), and how many times Pro activation was tried today.
Pro status: whether Pro is active, when that was last checked, and the email used to verify it (your Google account email, or the checkout email you typed).
A Pro seat record. So that one subscription cannot be activated on many Google accounts, StashLane keeps a pairing of the checkout email with the Google account that activated it. It holds only SHA-256 hashes of the two addresses, never the addresses themselves.

StashLane keeps no copy of your emails anywhere: they go only into the Notion pages and PDFs you asked for.

Third parties

Notion (Notion Labs, Inc.) receives what you save, in your own workspace, as described above. StashLane connects to Notion as a Notion integration that you authorize in Notion’s window; you can remove it in Notion’s settings at any time.
Paddle, our payment provider and Merchant of Record, is asked whether the email used for Pro has an active StashLane subscription. StashLane sends that email address, and nothing from your emails. Checkout itself happens on Paddle’s pages; StashLane never sees your card details. Paddle’s privacy policy applies to the checkout.

We do not sell, rent or share your data, we show no ads, and we do not use your data for AI, machine learning or any other processing beyond saving the emails you choose.

Permissions

gmail.addons.execute: run as a Gmail add-on and show the StashLane panel.
gmail.addons.current.message.readonly: read the email you have open, and its conversation, while StashLane is open on it. Nothing else in your mailbox.
drive.file: make the StashLane folder and the PDFs you save in your Drive. It reaches only files StashLane created.
script.external_request: call Notion’s API to make pages and upload attachments, Google Drive’s API to write the PDF, and Paddle to check a Pro licence.
script.locale: your time zone and language as set in Gmail, so dates on the Notion page and in the PDF match your clock.
userinfo.email: your email address, to match a licence and fill in the checkout email.

StashLane has no permission to read your mailbox, send email or see your other Drive files, and none of its permissions is a “restricted” Google permission.

Google API Services User Data Policy

StashLane’s use and transfer of information received from Google APIs to any other app will adhere to Google API Services User Data Policy, including the Limited Use requirements. Its use of data from Google Workspace APIs also follows the Google Workspace API User Data and Developer Policy.

Google user data, including the content of the email you open, is used only to save that email to Notion or to Google Drive when you ask.
It is not transferred to anyone, except to your own Notion workspace and Google Drive at your request and to Paddle as described above, and not used for advertising.
It is not used to create, train or improve any AI or machine-learning model.
No one at BiLingoPlus reads your emails, unless you ask us to and agree to it for a support request, or where it is needed for security or to comply with the law.

Technical logs

Google Apps Script keeps technical logs for us in Google Cloud Logging, so that we can see when StashLane breaks. They hold errors that StashLane did not handle itself, with their error message. StashLane does not write the contents of your emails to them, and we use them only to fix problems.

Security

All requests StashLane makes, to Google, to Notion and to Paddle, use HTTPS. The Notion tokens and your settings are stored in Google’s own storage for your account, protected by your Google account’s security. Payment data is handled by Paddle and never reaches StashLane or BiLingoPlus.

Deleting your data

Erase my data, on the StashLane home card (with no email open), deletes everything StashLane keeps for your account: the Notion tokens, the settings and field choices, the list of saved emails and the Pro status. It keeps only this month’s count of saves and today’s count of activation attempts, so that the free and activation limits cannot be reset by erasing.
Disconnect forgets the Notion tokens. To remove StashLane’s access on Notion’s side too, remove it in your Notion workspace’s settings for connections.
Pages saved to Notion and PDFs saved to Drive are yours: delete them in Notion or Drive like any other page or file.
Uninstall StashLane from your apps in Google Workspace Marketplace and remove its access at myaccount.google.com/connections to cut it off from your Google account.
To remove the Pro seat record, or for anything else, write to info@bilingoplus.com.

Changes

If StashLane changes how it handles data, this policy will be updated before that version is published, and the date above will change.

Contact

StashLane is operated by, and the data controller is, BiLingoPlus LLC, a Wyoming limited liability company, 30 N Gould St Ste R, Sheridan, WY 82801, USA · info@bilingoplus.com

Gmail™, Google Drive™ and Google Workspace™ are trademarks of Google LLC. Notion is a trademark of Notion Labs, Inc. StashLane is an independent product and is not endorsed by or affiliated with Google or Notion.