LIGHTCONE Privacy Policy
Effective November 8, 2026
LIGHTCONE is made by Happy Heart Software LLC. You can play it on the web or in the LIGHTCONE app for Android; this policy covers both.
What stays on your device
Your best score and your most recent score are kept in your browser on this device, so the game can tell you when you beat them. We don’t receive or keep copies. Clearing your browser’s site data deletes them. In the Android app they’re kept in the app’s own storage, which isn’t included in device backups; clearing the app’s storage or uninstalling it deletes them.
So that LIGHTCONE can be installed and played offline, your browser also keeps a copy of the game’s own files (its code, styles and icons) on this device. They’re the same files anyone downloads to play. The Android app has these files built in.
What is sent, and when
LIGHTCONE’s files load from lightcone.happyheartsoftware.com, hosted by Cloudflare, which like any web host receives your IP address and browser details with each request. The Android app doesn’t load anything from there: the game is part of the app. Either way, the game runs entirely on your device: nothing about your universe or what you do in it is sent anywhere.
If you send feedback (💬, or “Send feedback” in the ⋯ menu on phones), what you write, and the email address or phone number if you choose to leave one, is sent to Heartforms, Happy Heart Software’s own form service at forms.happyheartsoftware.com (also hosted by Cloudflare), which keeps it and emails it to the people who make LIGHTCONE. We use it to improve the game, and your contact details only to set up a chat you asked for. Nothing is sent until you press Send, and nothing about your game goes with it. To have your feedback deleted, email us at the address below.
The Library’s further-reading links open Google Scholar or Open Library only when you choose to follow one; those sites then handle your visit under their own privacy policies. In the Android app they open in your browser.
“Find this book”, on the Library’s books and novels, sends nothing by itself: it lists places to look the book up, and only the one you pick gets the book’s title, author and year. Goodreads opens goodreads.com (on the web, in a new tab), and Goodreads handles your visit under its own privacy policy. “Other apps…” opens your device’s share sheet with the book’s title, author and year, for an app you choose.
In the Android app, LIGHTCONE checks on your device whether two book apps are installed: Biblibud (Happy Heart Software’s free ebook and audiobook app) and Goodreads. It looks for those two only, when LIGHTCONE starts or comes back to the screen, so “Find this book” can offer them, and the answer isn’t stored or sent anywhere. Picking one opens that app with the book’s title, author and year so it can look the book up; that app’s own privacy policy covers what it does with them.
What we don’t do
No accounts, analytics, advertising, tracking or cookies in LIGHTCONE. The Android app asks for no permissions beyond internet access, which it uses only to send feedback.