Signet · Terms of Use

Last updated: July 10, 2026

1. About these terms

These terms constitute an agreement between you and Daylumen ("we," "us") regarding your use of Signet ("the app"). By downloading, installing, or using the app, you accept these terms.

If you obtained the app through the App Store, you are also bound by Apple's Standard End User License Agreement. Where these terms conflict with Apple's, the interpretation more favorable to you prevails.

2. License scope

We grant you a personal, non-exclusive, non-transferable license to use the app on Apple devices you own or control. You may not: reverse-engineer, decompile, or attempt to extract the app's source code; remove or obscure any copyright notices within the app; rent, lend, resell, or sublicense the app or any of its components.

3. Your content belongs to you

Everything you create in the app — photos, text, dates, seal inscriptions, and colophons you carve — belongs entirely to you. This content is stored only on your device. We have no servers holding it, so we can neither access it nor claim any rights, licenses, or usage permissions over it.

Exported finished images and year-end scrolls are equally yours. You may freely save, share, or use them commercially without seeking our permission or providing attribution.

4. Copyright of the app and seals

The app's software, interface, visual design, and all built-in seals (including seal-face designs, inscription selection and layout, borders, and ink color palettes) are copyrighted by Daylumen and protected by copyright law and international treaties.

Signet, 拾刻 and the app icon are our trademarks.

Stamping built-in seals onto your own moments and exporting/sharing the results — the app's intended use — is fully permitted without additional authorization. However, you may not: extract seal assets from the app for standalone use, redistribution, or use in other products; use built-in seal designs as trademarks or logos.

Some leisure seal inscriptions are drawn from Han dynasty auspicious phrases and classical literary expressions (e.g. "Enduring Joy," "Never-ending," "Having Seen the Vast Sea"). These phrases themselves are in the public domain; what is protected is our seal-face design and presentation, not the phrases themselves.

This app uses the LXGW WenKai typeface, licensed under SIL Open Font License 1.1.

Seal script typefaces include ChongXi Seal Script (Academia Sinica "Xiaoxuetang" project, compiled by Wang Xinyi and Ji Xusheng), used under CC BY-ND 3.0 Taiwan (Attribution–NoDerivatives), with font files unmodified; the CNS11643 Shuowen Jiezi typeface, used under the Government Data Open License v1; and Yishan Stele Seal Script (author: Zichuan, publicly declared free for commercial use).

Handwriting-style typefaces include Zhi Mang Xing, Liu Jian Mao Cao, Long Cang, and Ma Shan Zheng, all licensed under SIL Open Font License 1.1.

Simplified-to-traditional character mapping for inscriptions references OpenCC open dictionary data (Apache License 2.0).

5. Data and backups

The app has no accounts and uses no cloud storage. Your data exists only on your device. This means: deleting the app deletes all data; switching devices will not automatically migrate data (unless you have iCloud device backup enabled); deleting a moment or grinding away a seal within the app takes effect immediately and is irreversible.

Please maintain your own device backups. We cannot recover any deleted or lost data for you, because we have never held it.

6. Disclaimer

The app is provided "as is." To the maximum extent permitted by applicable law, we make no warranties, express or implied, regarding the app's merchantability or fitness for a particular purpose, nor do we guarantee that the app will be error-free or uninterrupted.

To the maximum extent permitted by applicable law, we shall not be liable for any indirect, incidental, special, or consequential damages arising from the use or inability to use the app, including data loss. Where local law does not permit such limitations, our liability shall be limited to the minimum extent allowed by law.

7. Pricing and in-app purchases

The app is currently completely free — no in-app purchases, no subscriptions, no ads. If paid content is introduced in the future, pricing and included content will be clearly labeled within the app; moments and seals already belonging to you will never be revoked or locked due to any change in payment status.

8. Changes to these terms

We may update these terms. Material changes will be reflected in the "Last updated" date at the top of this page. Continued use of the app after changes constitutes acceptance of the updated terms; if you do not agree, please stop using and delete the app.

9. Governing law

These terms are governed by the laws of the People's Republic of China (excluding conflict-of-law rules). This does not affect any mandatory rights you enjoy as a consumer under the laws of your jurisdiction.

10. Contact us

Any questions about these terms: signet@gatheon.com