Terms of Service

Last updated: July 22, 2026

Article 1 — Agreement to Terms

These Terms of Service (the "Terms") govern your use of the Havelt QR mobile application (the "App"). By downloading, installing or using the App, you agree to be bound by these Terms. If you do not agree, please do not use the App.

The App requires no account and no registration.

Article 2 — Scope of the Service

The App reads QR codes and barcodes with your device camera or from an image you select, classifies each result into a category, and stores it on your device so that you can search it later. It can also generate QR codes and one- and two-dimensional barcodes, including business formats (such as GS1-128 and Data Matrix) available with the one-time purchase.

Store links are a supplementary convenience. They may be unavailable, incomplete or discontinued without affecting the core functions.

Article 3 — Disclaimer of Warranties

The App is provided "as is" and "as available", without warranty of any kind, express or implied, including merchantability, fitness for a particular purpose and non-infringement.

In particular, we do not warrant that:

Article 4 — Scanned Content and Third-Party Destinations

A code is data created by someone else. The App decodes and displays it; it does not vouch for it.

Please be careful with codes from untrusted sources. A QR code can encode a link to a malicious site, a payment request, or a Wi-Fi network you did not intend to join. The App shows you the decoded content before you act on it. Deciding whether to open, connect or pay is your responsibility.

Links open in your external browser. Once you leave the App, the destination's own terms and privacy policy apply, and we have no control over, and accept no responsibility for, that destination.

Article 5 — Store Links and Affiliate Disclosure

When the App language is set to Japanese, product detail screens include buttons that open a retailer such as Amazon or Rakuten. In other languages no store buttons are shown. These may be affiliate links: if a purchase you make earns us a commission, that is disclosed in the App at the point of use.

Affiliate participation does not change the price you pay. We are not a party to any transaction between you and a retailer, and we take no responsibility for the retailer's products, prices, availability, delivery, warranty or customer service. All such matters are between you and that retailer.

Prices are not shown in the App. Always confirm the current price and product details on the retailer's own page.

Article 6 — Your Data and Backup Responsibility

Your scan history, labels, notes and photos are stored on your device. You are responsible for maintaining your own backups.

To the maximum extent permitted by law, we are not liable for any loss of data, however caused.

Article 7 — Purchases

The App offers a single one-time purchase that shows your history in full, allows the business barcode formats to be created, and enables automatic backup and restore. There is no subscription and no recurring charge.

Prices may change. A change applies to new purchases only; a purchase already made is not affected.

Article 8 — Advertising

The App displays no advertising and contains no advertising SDK. This is a design commitment, not a paid upgrade: the free version is ad-free as well.

Article 9 — Acceptable Use

You agree not to:

On generated barcodes: EAN-13 numbers are allocated to businesses by GS1. A number you invent may collide with a real product. Generated codes are intended for personal labelling only.

Article 10 — Intellectual Property

The App, its design, and its content are owned by us and protected by copyright and other laws. These Terms grant you a personal, non-exclusive, non-transferable licence to use the App; they do not transfer ownership.

The data you create — your labels, notes and photos — remains yours.

QR Code is a registered trademark of DENSO WAVE INCORPORATED. Other product and company names are trademarks of their respective owners.

Article 11 — Limitation of Liability

To the maximum extent permitted by applicable law, we shall not be liable for any indirect, incidental, special, consequential or punitive damages, or for loss of data, profits or opportunity, arising out of or relating to your use of the App.

Where liability cannot be excluded, it is limited to the amount you actually paid for the App in the twelve months preceding the event giving rise to the claim.

Article 12 — Changes to the App and to These Terms

We may modify, suspend or discontinue any part of the App at any time. We may also revise these Terms; material revisions will be notified through an app update. Continued use after a revision constitutes acceptance.

Article 13 — Termination

You may stop using the App at any time by uninstalling it. We may suspend access for a user who breaches these Terms. Provisions that by their nature should survive termination — including Articles 3, 6, 10 and 11 — will survive.

Article 14 — Governing Law and Jurisdiction

These Terms are governed by the laws of Japan. Any dispute arising out of or relating to the App or these Terms shall be submitted to the exclusive jurisdiction of the Tokyo District Court as the court of first instance, without prejudice to any mandatory consumer protection rights available to you in your country of residence.

Article 15 — Severability

If any provision of these Terms is held invalid or unenforceable, that provision shall be limited or removed to the minimum extent necessary, and the remaining provisions shall remain in full force and effect.

Article 16 — Contact

Questions about these Terms can be sent through the contact page or the support link on the store listing.