Privacy Notice

1. Scope

• This notice covers the website lightningeg.com (the “site”), in English and Arabic.
• It does not cover the Lightning app. The app has no account and no analytics, and keeps financial data only on your own devices.
• The app connects to the internet only to look up prices of holdings you record.

2. Essential Analytics

• Applies to every visitor, whatever you choose in the banner. Nothing is stored on your device.
• GoatCounter, an open-source analytics service that sets no cookies, counts page views and the events described below. It may tell page views of one session apart for a few hours, using a temporary value derived from your connection. It does not store your IP address.
• Lightning also keeps its own anonymous record of each page view, in a private Google Sheet, through a Google Apps Script that Lightning runs. These records are deleted after 90 days.
• A record holds: the page and its release ID; language; device type (phone, tablet or computer), operating system and browser family; the referring site and campaign tags (utm_source, utm_medium, utm_campaign); when you arrive from another page of this site, that page's name; how far down the page you scrolled; how many seconds you were active; how fast the page loaded.
• A record also holds a timeline of what appeared on screen or was pressed, with the second each happened: sections, buttons and links, the menu, questions opened, screenshots enlarged, the calculator used, a form started or sent, and taps on things that are not buttons.
• A record also holds error codes, such as a picture that failed to load, a script that crashed or the visit counter being blocked, and the name (never the contents) of a form box that the browser refused.
• A record carries a random number made for that page view only. It is held in memory, never stored on your device, and does not link your page views together.
• A record never holds the contents of any field, such as amounts in the calculator or an email being typed, and never holds names, email addresses or IP addresses.
• Only Lightning reads the records and totals, behind a key. Lightning also reads GitHub’s own download count for each app file, which holds nothing about you.

3. Linked Visits

• Applies only if you select Allow all. It uses your browser’s storage, which works like a cookie.
• Your browser creates a random visit identifier, held in session storage and deleted when the tab is closed.
• Your browser creates a random visitor identifier, held in local storage for 90 days, to tell first visits from return visits.
• Each page sends the events listed in section 2, with these identifiers, the page, device type (phone, tablet or desktop), language, referring site and campaign tags (utm_source, utm_medium, utm_campaign).
• The data is sent to a Google Apps Script run by Lightning and stored in a private Google Sheet.
• Records older than 90 days are deleted daily.
• Only totals are shown outside the sheet.

4. Not Collected

• Names, email addresses or phone numbers, except in forms you submit (section 5).
• IP addresses.
• Device fingerprints.
• Advertising or social media trackers.
• Session recordings or heatmaps.
• No data is sold or shared for advertising.

5. Forms

• The survey, the email signup and beta feedback are sent only when you submit them.
• Submissions are stored in private Google Sheets.
• Email addresses are used only to invite you to the beta and to send news of new builds.
• To request deletion, use the feedback form on Downloads.

6. Your Choice

• Essential analytics apply until you choose.
• Your choice and your light or dark theme setting are stored in this browser’s local storage, which works like a cookie. They apply to this browser only.
• Keep essential only also deletes both random identifiers.
• If your browser sends a Global Privacy Control signal, only essential analytics apply and you are not asked.
• If this notice changes what is collected, you are asked again.

7. Changes

• The date above shows the last update.
• Earlier versions are kept in the Version Archive.