Last updated: May 27, 2026
These Terms of Service (the "Terms") govern your access to and use of the Nebula application and the website at getnebula.tech (collectively, the "Service"). The Service is operated by Alexander Grosse, Berlin, Germany ("Nebula", "we", "our", or "us").
By creating an account, signing in, or otherwise using the Service, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the Service.
Nebula is a unified communication platform that lets you read, organize, classify, summarize, and reply to your email and messaging communications from a single interface. The Service connects to third-party providers (such as Google's Gmail, Calendar, and Contacts APIs, or an IMAP/SMTP server you specify) on your behalf, using credentials and OAuth authorizations you provide, and presents a unified view of your communications.
The features available to you may change over time. We may add, modify, or remove features without prior notice.
You must be at least 16 years old to use the Service. By using the Service, you represent that you meet this age requirement and that you have the legal capacity to enter into these Terms.
You agree to provide accurate and complete information when you register, and to keep that information current. You are responsible for safeguarding your account credentials and for any activity that occurs under your account. Notify us immediately at security@getnebula.tech if you suspect unauthorized access.
The Service requires that you grant Nebula access to one or more external mailboxes — typically by signing in with your Google account or by providing IMAP/SMTP credentials. You represent that you have the right to grant this access for every mailbox you connect, and that doing so does not violate any agreement you have with the provider of that mailbox.
You agree not to use the Service to:
Nebula's use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements. The specifics of how Google user data is accessed, used, retained, and shared are described in our Privacy Policy §2.
When you connect a Google account, your use of the Service is also subject to Google's Terms of Service. If there is a conflict between these Terms and Google's terms in relation to data Google supplies to Nebula on your behalf, Google's terms govern that data; these Terms govern everything else.
Parts of the Service use large-language-model (LLM) inference and other machine-learning techniques to generate briefings, summaries, draft replies, classifications, and chat answers. The list of Sub-Processors that may perform this inference, together with their data-handling commitments, is maintained at getnebula.tech/sub-processors.
AI-generated outputs are provided as suggestions, not as authoritative statements. They may be inaccurate, incomplete, or misleading. You are responsible for reviewing any AI-generated content before relying on it, sending it, or taking action based on it. We do not warrant that AI outputs will be accurate, complete, appropriate, or fit for any particular purpose.
You retain ownership of the content you provide to the Service. We do not use your content to train or fine-tune generalized or non-personalized AI models, and our LLM Sub-Processors operate under terms that prohibit them from doing so for inference data routed through their paid APIs.
During Nebula's private beta, the Service is offered at no charge. We may introduce paid plans or paid features in the future. If we do, we will notify you in advance of any fees and will not begin charging you without your explicit agreement to those fees.
Where applicable, payments are non-refundable except as required by law. Statutory consumer rights (including any applicable right of withdrawal under the German Civil Code) are unaffected.
The Service — including its software, design, trademarks, and content we author — is owned by Nebula and protected by intellectual-property laws. These Terms do not grant you any right to use Nebula's name, logo, or branding except as expressly permitted in writing.
You retain all rights in the email content, calendar data, and contact data you bring into the Service. You grant us a limited, non-exclusive, worldwide, royalty-free licence to access, copy, process, transmit, and display that content solely as necessary to operate the Service, deliver the features you have enabled, and provide them to you. The licence ends when the content is deleted or your account is closed, subject to short, technical retention windows (e.g. backups) described in the Privacy Policy.
If you send us suggestions or feedback about the Service, you grant us a perpetual, non-exclusive, royalty-free, worldwide licence to use that feedback to improve the Service, with no obligation to compensate or credit you.
You may stop using the Service at any time. To delete your account and the data associated with it, follow the instructions in the Privacy Policy or write to privacy@getnebula.tech. Deletion is normally completed within 30 days.
We may suspend or terminate your access to the Service, with or without notice, if we reasonably believe you have violated these Terms, if your use creates a security or legal risk to us or to other users, if we are required to do so by law, or if we discontinue the Service entirely. Where it is practicable to do so without compromising the reason for the action, we will notify you and give you a reasonable opportunity to correct the issue.
On termination, your right to use the Service ends. Sections that by their nature should survive termination — including 3 (Acceptable Use), 7 (Intellectual Property), 9 (Disclaimer), 10 (Limitation of Liability), 11 (Indemnification), 13 (Governing Law) — survive.
To the maximum extent permitted by applicable law, the Service is provided "as is" and "as available", without any warranty of any kind, express or implied — including warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, or reliability. We do not warrant that the Service will be uninterrupted, secure, error-free, or that any defects will be corrected. You use the Service at your own risk.
This Section does not exclude or limit any warranty or remedy that cannot be excluded or limited under applicable law (including statutory warranties under the German Civil Code for consumer users).
To the maximum extent permitted by applicable law, Nebula's total aggregate liability arising out of or relating to these Terms or your use of the Service is limited to the greater of: (a) the fees you paid to Nebula in the twelve (12) months preceding the event giving rise to liability, or (b) one hundred euros (EUR 100).
We are not liable for indirect, incidental, consequential, special, exemplary, or punitive damages — including loss of profits, revenue, data, goodwill, or business opportunities — even if we have been advised of the possibility of those damages.
Nothing in these Terms limits or excludes our liability for: (i) death or personal injury caused by our negligence; (ii) fraud or fraudulent misrepresentation; (iii) gross negligence or intentional misconduct; or (iv) any other liability that cannot be limited or excluded under applicable law.
You agree to defend, indemnify, and hold harmless Nebula from any third-party claim, demand, or proceeding (and any related costs, damages, and reasonable legal fees) arising out of (a) your breach of these Terms, (b) your violation of any law or third-party right, or (c) any content you send, store, or transmit through the Service that is unlawful, infringing, defamatory, or otherwise wrongful. This Section does not apply to claims arising from Nebula's own breach of these Terms or its negligence.
We may modify the Service, or these Terms, from time to time. When we make material changes to these Terms, we will post the updated Terms at this URL and update the "Last updated" date above. We will also notify you of material changes by an in-product banner or by email to the address associated with your account. Your continued use of the Service after the effective date of the updated Terms constitutes acceptance of those Terms. If you do not agree to the updated Terms, your remedy is to stop using the Service before the effective date and to delete your account.
These Terms, and any dispute arising out of or relating to them or to your use of the Service, are governed by the laws of the Federal Republic of Germany, without regard to its conflict-of-laws rules. The exclusive place of jurisdiction for all disputes is Berlin, Germany, to the extent the parties may agree on this and applicable consumer-protection laws permit. Nothing in this Section deprives a consumer of the protection of mandatory provisions of the consumer's country of residence.
These Terms, together with the Privacy Policy and any other documents expressly incorporated by reference, are the entire agreement between you and Nebula about your use of the Service, and supersede any prior agreement on that subject.
Our failure to enforce any right or provision of these Terms is not a waiver of that right or provision. A waiver must be in writing and signed by Nebula to be effective.
If any provision of these Terms is held to be unenforceable, that provision will be modified to the minimum extent necessary to make it enforceable, and the remaining provisions remain in effect.
You may not assign or transfer your rights or obligations under these Terms without our prior written consent. We may assign these Terms in connection with a merger, acquisition, or sale of assets, on notice to you.
If you have questions about these Terms, contact us at:
Nebula
Alexander Grosse
Berlin, Germany
Email: hello@getnebula.tech