Lingo

Privacy

Lingo is built to keep your voice yours. There is no account, no cloud sync, no analytics SDK, and no ad network.

What stays on your device

Your practice history, per-sound mastery, streak, and settings (SwiftData, local only).
Microphone audio when you tap the mic. It is analysed on-device with Apple's Speech framework and our on-device acoustic scorer, then discarded after the attempt. It is never uploaded to Lingo servers.
The curriculum (sounds, minimal pairs, drills) is bundled inside the app for fully offline practice.

Nothing. Lingo ships no analytics, telemetry, crash SDKs, or advertising identifiers, and makes no network calls during practice.

Subscriptions and lifetime purchases are processed by Apple via StoreKit. We never see your payment details.