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Privacy Policy

Last updated: August 27, 2026
In short: Boothcard stores your card images and the details read from them only on your device. Text recognition (OCR) runs entirely on the device, and your card data is never sent to any server. The app contains no advertising and no analytics, and no data is shared with third parties.

1. Who We Are

"Boothcard" (known as 展示会名刺 in Japanese, the "App") is provided by kouworks ("we", "us"). Contact: contact@kou-works.jp · Website: https://kou-works.jp/

2. Information We Do Not Collect

We do not collect, store, or transmit your personal information through the App. Specifically, we do not:

The App includes no advertising SDK and no analytics SDK.

3. Data Stored on Your Device

Card images (front and back), the details captured with them — name, company, department, job title, phone number, email address, address — and your folder and priority settings are stored only on your device. We have no way to see or retrieve any of it.

Deleting the App also deletes the data it stored on your device, so export anything you want to keep (for example as CSV) beforehand. If iCloud Backup is enabled on your device, the App's data may be included in your Apple iCloud backup; that backup is handled according to Apple's privacy policy.

4. Text Recognition (OCR)

Reading text from a card uses the text recognition built into iOS (the Vision framework). This runs entirely on your device — neither the card image nor the recognized text is sent to any server.

5. Voice Input

Voice input in the App's fields uses Apple's speech recognition service (the Speech framework). How recognition is performed depends on your iOS version, device, language, and settings, and audio may be sent to Apple's servers for recognition. In that case the audio is handled according to Apple's privacy policy.

In every case, we neither receive nor store your audio or the text recognized from it — the result simply appears in the field on your device. If you prefer not to use voice input, every feature of the App is fully usable with the keyboard alone.

6. Device Permissions

These permissions are used solely for the App's features, and nothing obtained through them is transmitted externally. You can change permissions at any time in iOS Settings.

7. Exporting and Sharing Data

The App can export your saved card details as a CSV file. Export happens only when you ask for it, and you choose where the file goes. Once you hand that file to another app or service, its handling is outside our control.

8. In-App Purchases

Pro purchases are processed by Apple's App Store (StoreKit). Payment details are handled by Apple; we never receive or store payment information such as card numbers. Purchases are subject to Apple's privacy policy.

9. Third-Party Services

Other than App Store billing (Apple) and the standard iOS features described above, the App uses no third-party services, and no analytics, advertising, or tracking services of any kind.

10. The Card Data You Hold

The details you save in the App are usually the personal information of other people. That data stays on your device, but how you use, manage, and retain it is your own responsibility, in line with applicable law and the circumstances in which the cards were given to you.

11. Children's Privacy

The App collects no personal information from users of any age.

12. Changes to This Policy

We may update this policy as needed. Significant changes will be announced on this page.

13. Contact

For questions about this policy, email contact@kou-works.jp.