Privacy policy

Last updated: October 20, 2026

The short version: Quill & Lantern keeps your data on your phone. There are no accounts, no ads, no analytics, no crash reporting, and no tracking, and we never sell or share your information. We, the developers, cannot see what you log, because it never reaches us.

Who we are

Quill & Lantern is made and published by Dylan Oxford, an independent developer in Washington State, USA. “We” in this policy means the developer of Quill & Lantern.

What the app stores, and where

Everything you enter (food logs, recipes, quests and their history, workouts, weight entries, supplements and the doses you mark, the Privy count if you turn it on, XP, streaks, and settings) is stored in a database on your device. It is not sent to us or to any server we run. Deleting the app deletes this data, unless you have made a backup. Because we never have a copy, we can't recover it for you.

When the app connects to the internet

Cloud backup to Google Drive

Cloud backup is off until you turn it on in the Strongbox. When you do, Google shows its own screen to choose an account and allow access. The app asks for one permission: its own app data folder in your Google Drive (Google calls this access drive.appdata). It can't see, open, or change anything else in your Drive.

Cloud backup to your own iCloud on iPhone is planned and will work the same way.

Turning lookups off

If you'd rather your phone never contact USDA, Open Food Facts, or the NIH label database, turn on Bar the door (Offline mode) in Settings, under Your data. With it on, the app makes no food or supplement lookups at all: search and barcodes use only the built-in foods, foods you've already looked up, and foods you add yourself, barcodes scanned earlier are never looked up later, and supplements are added by typing. It's off by default.

Camera

The camera is used only when you scan a food barcode, a recipe QR code, or a nutrition label. Everything is read on your phone with open-source tools built into the app (ZXing for codes, and Tesseract on Android or Apple's built-in text recognition on iPhone for labels). No Google services are involved, and the camera image never leaves your phone. A label photo is deleted as soon as it's been read, and the numbers it finds are shown to you to check before anything is saved.

Health data

On Android, if you turn it on in Settings, the app saves the workouts you log, and the calories they burned, to Health Connect, so other health apps you've allowed can see them. Android asks your permission first. The app does not read anything from Health Connect. This data stays on your device, is never used for advertising, and isn't shared with us. You can turn it off at any time, in the app or in Health Connect's settings. Support for Apple Health on iPhone will work the same way.

Sharing recipes

When you share a recipe, the recipe itself is packed into the link, QR code, or file you send. It includes the recipe's name, servings, ingredients with their amounts and nutrition, and, if you choose, its instructions, tags, and the name you type as the sender. It never includes photos, your food log, or anything else from your phone. You choose who receives it, and they can pass it on like any message.

If someone opens a recipe link in a web browser, the recipe is decoded inside their browser. The recipe part of the link comes after the #, and browsers never send that part to our website's server.

Reminders

Reminders and notifications are scheduled on your phone. They do not use a server.

This website

This website uses no cookies, analytics, or tracking scripts, and loads its fonts and art from our own server. Our hosting provider, Cloudflare, processes basic technical information such as IP addresses to deliver the site and protect it from attacks; see Cloudflare's privacy policy. If you follow our link to Ko-fi, Ko-fi's privacy policy applies there.

Contacting us

If you email us, we use your email address and message only to reply to you. We don't add you to any mailing list. Please don't send your food log or backups; we never need them.

Children

Quill & Lantern is not directed at children under 13. Because the app collects no personal information from anyone, it collects none from children.

Your choices

Changes to this policy

If this policy changes, we will update it here and change the date at the top. We won't start collecting data without saying so plainly first.

Questions

For any question about privacy or this policy, email Dylan Oxford at [email protected].