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Terms of Service

Last updated: 7 May 2026

These Terms of Service (“Terms”) govern your use of Engine, an outbound prospecting and email outreach platform. Engine is a trading name of Lunar Fitness Ltd, a company registered in England and Wales with company number 16551732. By creating an account or using Engine, you agree to these Terms. If you do not agree, do not use the service.

1. Definitions

  • Engine, we, us, our: Lunar Fitness Ltd t/a Engine.
  • You, your, Customer: the individual or entity that creates an Engine account.
  • Service: the Engine web application at getengine.ai and all related features.
  • Content: any data, text, emails, contact information, or other material you upload to, generate within, or transmit through Engine.

2. Eligibility and account

You must be at least 18 years old and authorized to bind any business you represent. You are responsible for keeping your account credentials secure and for all activity that occurs under your account.

3. The service

Engine helps you discover prospect businesses, enrich contact data, and send outbound email campaigns from the mailbox you have connected. We may modify, add, or remove features at our discretion. We aim for high availability but do not guarantee that the Service will be uninterrupted or error-free.

4. Subscription and billing

  • Subscriptions are paid monthly in advance, processed by Stripe. Prices are in USD unless stated otherwise.
  • Your selected plan begins billing on the date you provide payment details.
  • You can cancel at any time from your account settings. Cancellation takes effect at the end of the current billing period; no partial refunds are issued for unused time.
  • We may change prices with 30 days’ notice. Existing subscriptions are honored at the agreed price for the current term.
  • You are responsible for any taxes or duties applicable to your purchase, except for taxes based on our net income.

5. Acceptable use

You agree not to use Engine to:

  • Send unsolicited bulk email in violation of CAN-SPAM (USA), CASL (Canada), the UK GDPR, the Privacy and Electronic Communications Regulations (PECR), the EU GDPR, or any other applicable law.
  • Send content that is illegal, defamatory, hateful, threatening, deceptive, or that infringes intellectual property rights.
  • Phish, distribute malware, or impersonate another person or organization.
  • Send to lists you do not have a lawful basis to contact.
  • Reverse-engineer, scrape, or attempt to circumvent the Service or its security controls.

You are solely responsible for the legality of your outreach campaigns and for complying with all applicable email, marketing, and data-protection laws. You must include accurate sender identification, a valid physical postal address, and a working unsubscribe mechanism in every campaign. Engine includes these elements by default; you must not disable them.

6. Connected mailboxes

When you connect a Gmail or Microsoft 365 mailbox via OAuth, you grant Engine permission to send email on your behalf using the scopes you approve. You can revoke this access at any time from your account settings or from the relevant provider’s security page. Engine’s use of Google user data complies with the Google API Services User Data Policy, including its Limited Use requirements (see our Privacy Policy).

7. Your content

You retain all rights to content you upload to Engine. You grant us a worldwide, royalty-free license to host, process, transmit, and display that content solely to provide and improve the Service. We do not sell your content and we do not use it to serve advertisements.

8. Our intellectual property

Engine, the Engine logo, the Spark mark, and the Service are owned by Lunar Fitness Ltd. These Terms do not grant you rights to our trademarks, source code, or proprietary technology beyond the right to use the Service as described.

9. Confidentiality

Each party agrees to protect the other’s confidential information with at least the same care it uses for its own confidential information of like importance, and not to disclose it except to employees, contractors, and advisers with a need to know who are bound by similar obligations of confidentiality.

10. Termination

We may suspend or terminate your account if you breach these Terms, fail to pay, or engage in conduct that risks harm to Engine or its users. You may terminate at any time by canceling your subscription. On termination we delete or anonymize your data within 30 days, subject to legal retention requirements.

11. Disclaimer of warranties

The Service is provided “as is” and “as available”. To the fullest extent permitted by law, we disclaim all warranties, whether express, implied, or statutory, including warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be uninterrupted, error-free, or that it will produce specific business outcomes (including any particular reply rate, deal volume, or revenue impact).

12. Limitation of liability

To the fullest extent permitted by law, our total aggregate liability arising out of or relating to these Terms or the Service is limited to the greater of (a) the amount you paid us in the 12 months preceding the event giving rise to the claim, or (b) £100. We are not liable for indirect, incidental, special, consequential, or punitive damages, including loss of profits, loss of data, or business interruption.

Nothing in these Terms limits liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot be limited or excluded under applicable law.

13. Indemnification

You agree to indemnify and hold us, our officers, employees, and agents harmless from any third-party claims, damages, or expenses (including reasonable legal fees) arising from your use of the Service, your content, or your breach of these Terms, including, in particular, claims by recipients of your outreach emails.

14. Governing law and jurisdiction

These Terms and any dispute arising from them are governed by the laws of England and Wales. You and we submit to the exclusive jurisdiction of the courts of England and Wales.

15. Changes to these Terms

We may update these Terms from time to time. Material changes will be communicated by email or in-app notice at least 30 days before they take effect. Continued use of the Service after that date constitutes acceptance of the updated Terms.

16. Contact

Lunar Fitness Ltd t/a Engine
Registered in England and Wales, company number 16551732
General: hello@getengine.ai
Privacy: privacy@getengine.ai