DatumHue Platform — Terms of Use

Version 1.11 — 2026-10-17

These terms govern your use of the DatumHue platform at datumhue.app: your account, discovering and installing packages, buying paid packages from creators, publishing to a creator's provider that admits you, and the purchases you make from Shuusei AB itself (§4). They are between you and Shuusei AB, the Swedish company that operates the platform.

Scope. Your use of the DatumHue workstation software is governed by the license you obtained it under. These terms govern the platform service. The packages you install or buy are third-party content published by independent creators, except those Shuusei AB publishes itself (§2.7), and are governed by the terms each creator grants you. These are the "Terms of Use published on datumhue.app" that the DatumHue Platform Workstation App License refers to.

1. The platform and your account

The platform lets you sign in, discover packages published by creators, install them, and — for paid packages — buy them from the creator who published them.
Your account is the Google account you sign in with; you are responsible for it and for keeping your sign-in credentials secure.
The platform is operated as a service. We may evolve, suspend, or discontinue parts of it or the platform as a whole; if we discontinue the platform, we give reasonable advance notice. Discontinuing the platform ends the service, including package delivery and the web client. The Platform workstation app needs the platform, so it stops working too, as its license sets out.
The web client software. The DatumHue web client served at datumhue.app is proprietary software that Shuusei AB licenses to you for use, in your browser, as part of the platform — free of charge. You may use it to run programs from the platform. Except as permitted here or by non-waivable provisions of applicable law, you may not reverse-engineer, copy, redistribute, or rebrand it, or remove its safeguards. It is provided "as is" (see §8). The Platform workstation app is also free. It is licensed separately, under the DatumHue Platform Workstation App License you accept when it first starts.

2. Packages are third-party content

Packages on the platform are published by independent creators, not by Shuusei AB, except as §2.7 provides. We do not author, review, vet, endorse, or control the packages other creators publish, and we make no representation about any package's quality, safety, accuracy, security, or fitness for a purpose.
Packages are delivered from creator-operated infrastructure. Shuusei AB does not host or store the content of packages other creators publish: a package is delivered to you from the provider its creator operates or designates, and the platform provides the discovery, connectivity, and entitlement services around that delivery (package content may pass through the platform's relays in transit, but is not stored there). A package's availability for download — a first install as well as a re-download — therefore depends on its creator's provider.
Every package — free or paid — is provided to you "as is" by its creator. You install and run packages at your own discretion and risk.
Shuusei AB is not responsible for a package's behavior or for any outcome of using it, including data loss, incorrect results, or harm to your work. Your recourse for a problem with a package is with its creator.
A package's own license — what you may do with it — is whatever the creator grants you. These terms do not grant you any rights in a creator's package.
The license a package is provided under is shown with the package — in the store and on its package page — identified by its license id. By installing or running a package you accept that license. The full text of the freeware license (LicenseRef-DatumHue-Freeware) is published on the licenses page of this site; open licenses are the industry-standard texts their ids name; a paid package that names no license is provided under its creator's own terms.
For the packages Shuusei AB publishes under the @datumhue namespace, Shuusei AB is the creator, and this section applies.

3. Buying paid packages

When you buy a paid package, the creator is the seller and merchant of record. Shuusei AB only facilitates the transaction (payment is processed by Stripe and settled to the creator's connected account); Shuusei AB never holds your funds and is not a party to the sale of the package itself.
Your purchase contract for the package is with the creator. The license and any support, warranty, or promises about the package come from the creator, not from Shuusei AB.
Non-refundable; what your purchase gives you. A purchase grants an entitlement to the package name you bought — covering that package's versions — which renews through the creator's provider and lapses within thirty (30) days after that provider stops answering or that creator's platform authority ends for any reason. A full refund of the purchase, or a reversal of its payment, ends the entitlement. Because the package is delivered immediately, at checkout you request that immediate delivery and acknowledge that you thereby lose the statutory 14-day right of withdrawal for your purchase from the creator, so the purchase is non-refundable as a change-of-mind return. Your entitlement is not a guarantee of continued delivery: re-downloading a package depends on its creator's provider, so a creator's retraction of a version, or a withdrawal of that creator's platform authority, can interrupt it, and a package may stop working in a future version of DatumHue (§5).
Refund requests, complaints, and disputes about a package go to the creator as the merchant of record. Payment disputes are between you, the creator, and the payment processor; Shuusei AB does not arbitrate them.
Nothing in this section removes a mandatory refund or right of withdrawal that consumer-protection law in your country of residence grants you and that cannot be waived (see §8).
Devices. Your purchases open only on the devices registered to your account. A device is an installation of the workstation or a web browser profile; one whose stored data is cleared, and a private browser window, count as new devices. A device is registered once your purchases from a creator reach it. At most ten (10) devices are registered at a time; while ten are, you cannot buy or open a purchase on another device. A device leaves your account ninety (90) days after its last check of your purchases through the platform, and you may remove a device at any time. A purchased package delivered into your own project as a dependency is not limited to registered devices.

4. Buying from Shuusei AB

The creator subscription (named Publishing on datumhue.com) and the enterprise subscription are sold on datumhue.com by Shuusei AB as the seller, with checkout hosted by Stripe. The Platform workstation app and the web client are free and are not sold.
The enterprise subscription is governed by the enterprise license agreement accepted at its checkout. These terms govern the platform service around the purchase.
The creator subscription is billed as a recurring charge through Stripe until you cancel. You may cancel at any time through the subscription page linked from your creator connection email and from the pricing page on datumhue.com; cancellation takes effect at the end of the paid billing period, publishing admission ends with it, and already-paid periods are not refunded. The publishing relationship itself is governed by the Creator Terms of Use.
Taxes. Prices exclude VAT and other applicable taxes, which are added at checkout where required.

5. No maintenance or compatibility guarantee

Keeping a package working is the creator's responsibility, not Shuusei AB's. We do not maintain, update, patch, fix, or guarantee the continued operation of any creator package, free or paid.
The DatumHue API carries no compatibility guarantee between releases. A package — including one you have bought — may stop working in a future version of DatumHue unless its creator keeps it up to date.
Updates, bug fixes, and compatibility with new DatumHue versions are provided at the creator's discretion. Buying a package does not entitle you to any future update or to a guarantee that it will keep running.

6. Acceptable use

You may not probe, circumvent, or overload the platform's sign-in, entitlement, or delivery machinery, attempt to obtain paid packages without paying for them, or use the platform to distribute unlawful or malicious content.

7. Privacy and data protection

Shuusei AB is the controller of the personal data the platform processes about you. Payment card data is handled entirely by Stripe and is never held by Shuusei AB, and we never hold buyer funds. We set no cookies and use only strictly necessary local storage — no analytics, tracking, or advertising — and we do not sell your data.

How we process this data, our legal bases, who we share it with, international transfers, how long we keep data, and your rights — including how to reach the Swedish supervisory authority, IMY — are set out in full in the DatumHue Platform Privacy Policy, which forms part of these terms. For any data-protection matter, contact privacy@datumhue.com.

8. Warranty disclaimer and liability

The platform is provided "AS IS", and all warranties, express or implied — including merchantability, fitness for a particular purpose, and non-infringement — are disclaimed to the maximum extent permitted by law. We do not warrant that the platform will be uninterrupted, error-free, or secure, and we disclaim all warranties for creator packages, which are third-party content (see §2).

Except in cases of intent or gross negligence, Shuusei AB's total aggregate liability arising out of or in connection with these terms, the platform, or a creator package is limited to direct damages and capped at one hundred euro (EUR 100). Shuusei AB is not liable for indirect or consequential damage — lost profits, loss of data, business interruption, or third-party claims. A paid package is a contract with its creator, not with Shuusei AB (see §3).

Nothing in this section limits any warranty, remedy, or liability that cannot be limited under applicable law, including mandatory consumer-protection law of the country where you reside. Nothing in these terms excludes or limits liability for death or personal injury caused by negligence, or for damage caused by gross negligence or wilful misconduct.

9. Changes to these terms

We may update these terms; the version that governs a purchase is the one in effect when you made it. The version is identified by the Version line at the top of this document. Material changes to the ongoing platform service take effect after reasonable notice; continuing to use the platform after the notice period constitutes acceptance.

10. General terms

Order of precedence. The DatumHue Platform Workstation App License governs the Platform workstation app; these terms govern the platform service; and each creator's package carries its own license. Where they conflict on a subject, the document specific to that subject controls.
Your use. You will indemnify Shuusei AB against third-party claims arising from your breach of these terms or your unlawful use of the platform.
Entire agreement. These terms are the entire agreement between you and Shuusei AB regarding the platform service.
Severability. If any provision is held unenforceable, the remaining provisions stay in effect and the unenforceable provision applies to the maximum extent permitted.
No waiver. Shuusei AB's failure to enforce a provision is not a waiver of its right to enforce it later.
Force majeure. Neither you nor Shuusei AB is liable for a failure to perform an obligation under these terms — including operating the platform service or delivering a §4 purchase — caused by circumstances beyond the affected party's reasonable control that it could not reasonably have foreseen, avoided, or overcome. The affected party must notify the other without undue delay. If such a circumstance prevents performance for more than sixty (60) days, either party may end the affected service relationship — for you, by closing your account — without liability for the failure. This does not limit §8's protection of mandatory consumer rights.
Assignment. Shuusei AB may assign these terms, for example in connection with a merger, acquisition, or sale of assets. You may not assign them without Shuusei AB's consent.
Export and sanctions. You must not use the platform in breach of applicable export-control or economic-sanctions law.
Capacity. You must be old enough to enter a binding contract where you live in order to use the platform.
Notices. Shuusei AB may give notices through the platform or to the contact on your account; you can reach Shuusei AB at support@datumhue.com.
Survival. The disclaimers, liability limits, force-majeure relief, and governing-law provisions survive termination.

11. Governing law and contact

These terms are governed by and construed in accordance with the laws of Sweden, without regard to its conflict-of-laws principles. Any dispute arising out of or in connection with these terms — including questions about their existence, validity, interpretation, or termination — is subject to the exclusive jurisdiction of the Swedish courts, with Gothenburg District Court (Göteborgs tingsrätt) as the court of first instance. Shuusei AB may nevertheless seek injunctive or other interim relief to protect its intellectual property rights in any court of competent jurisdiction.

Nothing in this section deprives a consumer of the protection of the mandatory consumer-protection law of the country where they reside, including the right to bring proceedings in, and to be sued only in, the courts for the place where they reside.

Questions about the platform, purchases, or these terms: support@datumhue.com. Questions about a specific package go to its creator.