Legal

Terms of Service

These terms are the agreement between you and the operator of Lumin. They apply when you create an account, when you sign in, and when you use the service. Effective 10 September 2026.

1. Who provides the service

Lumin is operated by Frederik Martin, Alfred-Kästner-Str. 59, 04275 Leipzig, Germany. You can reach us at [email protected]. The imprint has the full provider details.

2. The service

Lumin is a monitoring service for small teams. It collects uptime checks, logs, metrics, and web and mobile session data, and it sends alerts. The documentation describes the current feature set. Features can change over time; section 9 describes how we announce changes.

3. Your account

  • You must give a correct email address, and you must keep it current.
  • You must keep your password and your API keys secret. Actions taken with your credentials count as your actions. Tell us at once if a credential leaks.
  • You must be at least 16 years old to create an account.
  • If you accept these terms for a company, you confirm that you can act for that company.

4. Plans, prices, and payment

  • Every account starts on the free Hobby tier. The pricing section lists the paid tiers and their limits.
  • Paid tiers bill monthly, in advance, through our payment provider Stripe. Prices are in euro and exclude VAT.
  • You can upgrade, downgrade, or cancel at any time. A cancellation takes effect at the end of the paid period. We do not refund a started period.
  • We announce a price change by email at least 30 days before it takes effect. If you do not accept the change, cancel before that date.

5. Acceptable use

You agree to these rules:

  • Point uptime checks only at systems that you own, or that you have permission to probe. A check sends real requests to the URL you enter.
  • Send only telemetry that you have the right to share with us.
  • Do not use Lumin for unlawful content or unlawful activity.
  • Do not attack, overload, or probe the service itself, and do not try to reach data of another customer.
  • Do not resell the service without a written agreement with us.

We can suspend or close an account that breaks these rules. We contact you first when that is possible.

6. Your data

  • You keep all rights to the telemetry you send. We process it only to provide the service to you, and we do not sell it.
  • For personal data inside your telemetry, you are the controller and we are your processor under Article 28 GDPR. Contact us at [email protected] for a data processing agreement.
  • The privacy policy describes how we process personal data for your own account.

7. Retention and deletion

  • Telemetry expires after the retention window of your tier, and we delete it automatically.
  • You can delete a project or your whole account in the app at any time. The deletion is immediate. Copies in backups expire within 30 days.
  • There is no export tool today. Save what you need before you delete.

8. Availability

We run Lumin with care, but we do not promise a specific availability level in these terms. The service can be unavailable during maintenance or because of faults. We announce planned maintenance when it will interrupt the service.

9. Changes to the service and to these terms

We can change and extend the features of Lumin. We announce a change to these terms, or a change that removes a feature you pay for, by email at least 30 days before it takes effect. If you continue to use Lumin after that date, you accept the change. If you do not accept it, cancel before that date.

10. Liability

  • We are fully liable for intent, for gross negligence, for injury to life, body, or health, and under the German Product Liability Act.
  • For simple negligence, we are liable only for the breach of an essential contractual obligation, and only up to the damage that is typical and foreseeable for this kind of service. An essential obligation is one that the contract depends on.
  • All other liability is excluded.

11. Termination

  • You can end the agreement at any time: cancel your subscription and delete your account in the app.
  • We can end the agreement with 30 days notice to your account email. We can end it without notice for a serious breach of section 5.
  • When the agreement ends, we delete your account data as described in section 7.

12. Governing law

German law applies. If you use Lumin as a consumer, the mandatory consumer protections of your country of residence stay in place. If you are a merchant, the place of jurisdiction is the seat of the operator.

13. Final clause

If one clause of these terms is invalid, the other clauses stay in effect.

Questions? Reach us at [email protected].