Privacy

Last updated: October 12, 2026

Summary: KanaGO! has no accounts, no ads and no analytics. We don't collect or sell personal data. Your progress is stored only on your iPhone.

What is stored and where

The app stores on your device your name (if you type one), your study progress, saved words, JLPT scores and settings. This data never leaves your iPhone and we have no access to it. Deleting the app deletes it. It may be included in iCloud or computer backups depending on your iPhone settings, which Apple and you control.

Microphone and speech recognition

They are used only if you open Speak mode and grant permission. Your voice is processed by Apple's speech recognition (Speech) to check the word; depending on your device, Apple may process it on its servers under its privacy policy. KanaGO! does not record, store or send your audio anywhere else. You can revoke access in Settings → KanaGO!.

Notifications

The daily reminder is a local notification scheduled by your own iPhone. There is no notification server and no device identifiers.

Song videos

When you open a song, the app loads the video from YouTube (Google). YouTube may collect data under Google's privacy policy. Everything else works offline.

This website

This site is hosted on Vercel, which may log technical data (such as IP addresses) for security and operation. We use no cookies and no analytics; your language choice is kept in your browser's local storage. More in the cookie policy.

When the GitHub link at the bottom of the page appears, your browser queries its public API to show the repository’s stars. The request sends no cookies, credentials or saved language preference. GitHub receives your IP address and technical request data under its privacy statement. The last public count is also saved in your browser’s local storage so it remains available on reload or if the request fails. This cache contains no personal data.

Widgets

The Home Screen and Lock Screen widgets read a minimal copy of your progress (streak, today's XP, goal, word of the day and review dates) that the app keeps in a shared container on your own iPhone. That copy never leaves the device either.

App Store downloads

Apple handles the app download and may share aggregated, anonymous statistics with developers (such as download counts or crashes) if you allow it in Settings → Privacy & Security → Analytics & Improvements. We receive no data that identifies you.

Your rights

Because we keep none of your data on any server, there is nothing we can look up, correct, export or delete for you: it is all under your control on your iPhone. You can erase it anytime with “Reset progress” in the Me tab or by deleting the app.

Children

KanaGO! is suitable for all ages and collects no data from anyone, including children.

Changes and contact

If this policy changes, we'll update this page and its date. For questions, visit Support.