§ 01
Introduction
Lantern is a local-first iPhone app for learning languages by reading. This policy explains, in plain English, how Lantern handles information. We've kept it short, because there is not much to say.
Plain English
Privacy
policy.
The short version: Lantern does not collect personal data, has no user accounts, and keeps your library on your device. The longer version follows.
Last updated · March 7, 2026
§ 02
What we collect
Nothing personal. Lantern does not require account creation. No analytics SDKs, advertising trackers, or marketing pixels run in the app. There is no Lantern account to make and nothing tying your library to your identity.
§ 03
Where your reading lives
Your library, your reading progress, your imported EPUBs, and your saved words all live on your device. They are included in your encrypted device backup if you have one enabled; we never see them.
§ 04
Translations
Lantern uses Apple’s on-device translation framework. All translation runs locally on your iPhone — nothing you read or look up is ever sent over the network.
§ 05
Third-party services
No third-party advertising SDKs and no marketing trackers. Lantern relies on Apple system frameworks and the standard platform services needed to run on iOS.
§ 06
Children’s privacy
Lantern is not designed to collect personal information from anyone, including children.
§ 07
Changes to this policy
If practices change in the future, this page is updated and the date below changes with it.
§ 08
Contact
Questions about this policy can be sent to lantern@danwaldie.com.