Privacy policy

What we collect

Nothing that identifies you. Hinto has no account or sign-in, no analytics, no advertising and no tracking. We do not run a server that receives your data, and we do not sell or share data with anyone. The only exception is crash reports, described below.

What stays on your iPhone

Your decks, cards, pictures and recordings, the pages you scan or import, your study history and streak, and your settings are stored on your iPhone only.

They are included in your iPhone’s iCloud backup if you use it. That backup is handled by Apple under Apple’s privacy policy; we cannot see it.

Camera, photos, microphone and notifications

Hinto asks for the camera to scan pages and for the microphone to record audio on a card. Photos are chosen with Apple’s photo picker, so Hinto sees only the pictures you pick, not your library. It asks to send notifications only if you turn on the daily reminder. What these features capture is used only inside the app on your iPhone.

Making cards with AI

On an iPhone with Apple Intelligence, Hinto can read your pages with Apple’s model on the device. The pages do not leave your iPhone. You can turn this off in Settings → AI card maker.

Without it, Hinto makes cards with its own rules and a dictionary (JMdict) on your iPhone.

Hinto’s decks (Discover)

The Discover tab downloads the list of Hinto’s decks, their cover pictures and the decks you get from a file host (Cloudflare R2). Only downloads happen: nothing about you or your study is uploaded, and the request carries no account or identifier.

Like any website, the host sees your iPhone’s IP address when it sends the files. We don’t use it to identify you, and we don’t combine it with anything else. Cloudflare handles it under its own privacy policy.

What leaves your iPhone, and only when you choose

Deck files: when you share a deck, the file you send contains the deck’s cards, its pictures and audio, and your display name as its creator. Your study history is never included.

Debug info: Settings → Support → Share debug info builds a file with the app version, iPhone model, crash reports and recent app logs, and opens the share sheet. Card text and deck names are left out. It is sent only if you choose to send it.

Email: Settings → Support → Contact us opens an email to us with the app version, iOS version and iPhone model filled in. We receive what you send, and your email address, and use them only to reply.

Crash reports

If Hinto crashes or freezes, iOS gives the app a report of what went wrong. Hinto keeps these reports on your iPhone. They are sent to us only if you choose Settings → Support → Share debug info.

Separately, if you have turned on Share With App Developers in your iPhone’s Settings (Privacy & Security → Analytics & Improvements), Apple may share anonymous crash reports and usage statistics with us. Apple collects these under its own privacy policy, and they do not identify you. You can turn this off at any time in the same place.

Children

Hinto collects no personal information from anyone, including children.

Changes

If this policy changes, for example because the app gains a feature that sends data somewhere, we will update this page and its date before that version of the app is released.

Contact

Questions about privacy: lemonpepperstudioco@gmail.com