Legal

Terms of Service

The terms that govern your use of signaturin — fair to both sides, written to be read.

Last updated May 16, 2026

01

Agreement

These Terms of Service (the “Terms”) are a binding agreement between you and signaturin (“we”, “us”, “our”). They govern your access to and use of the signaturin platform, including the website at signaturin.com, the web application, any APIs, and related services (together, the “Service”).

By creating an account, signing in, or otherwise using the Service, you agree to these Terms. If you are using the Service on behalf of an organization, you represent that you have the authority to bind that organization, and “you” refers to both you personally and that organization.

If you do not agree to these Terms, do not use the Service. If you have already paid for it, contact us — we’ll find a fair way to wind things down.

02

The Service

signaturin is a software-as-a-service tool that lets administrators design, generate, assign, and deploy email signatures across a Google Workspace domain. The Service may include features such as directory sync, signature templates, AI-assisted drafting, campaign scheduling, link tracking, and analytics.

We are continuously improving the Service. We may add, change, or remove features over time. If a change materially reduces the functionality of a paid plan during a billing term, we will give you reasonable notice and, where appropriate, a refund or alternative.

03

Eligibility and accounts

To use the Service, you must be at least 18 years old (or the age of majority in your jurisdiction) and capable of entering into a binding contract. The Service is intended for business and professional use; it is not for personal consumer use.

You are responsible for the security of your account credentials and for everything that happens under your account. Sign in with Google is the default authentication method — keep your Google account secure (use a strong password and turn on two-factor authentication). If you suspect unauthorized access, tell us immediately at security@signaturin.com.

04

Your data

You retain all rights, title, and interest in the data and content you submit to the Service — your directory data, brand assets, signature templates, campaign content, and anything else (collectively, “Customer Data”). We claim no ownership of any of it.

You grant us a limited, non-exclusive, worldwide license to host, store, process, transmit, display, and modify Customer Data solely to operate, provide, secure, and improve the Service for you. This license ends when you delete the data or close your account.

You are responsible for ensuring that you have the right to provide Customer Data to us, including any necessary consents from your employees or other data subjects. Our Privacy Policy describes how we handle personal data, and our Data Processing Addendum (available on request) governs personal data processed on your behalf.

05

Google Workspace integration

The Service depends on Google Workspace APIs (Directory, Gmail Settings, and related services). To use the integration, you grant signaturin the OAuth scopes required for the features you choose to enable. You can revoke this access at any time from your Google Workspace admin console; doing so will disable the affected features.

You are responsible for compliance with Google Workspace’s own terms and acceptable use policies. We comply with Google’s API Services User Data Policy, including the Limited Use requirements — see the Privacy Policy for details.

Google may change its APIs, rate limits, or policies at any time. When that happens, we will adapt the Service as quickly as we reasonably can. Temporary degradations resulting from Google-side changes are outside our control.

06

AI features

Some features use generative AI to draft signature copy, recommend layouts, extract brand colors, or perform similar tasks (collectively, “AI Output”). AI Output is generated probabilistically and may be inaccurate, incomplete, or unsuitable for your needs. You are responsible for reviewing AI Output before using it.

As between you and us, you own the AI Output produced for your account, subject to the underlying AI provider’s terms. We do not claim ownership of AI Output. We do not use your AI inputs or outputs to train our own or third-party foundation models.

07

Plans, fees, and billing

The Service is offered on free and paid plans. Paid plans are described on our pricing page. By selecting a paid plan, you agree to pay the listed fees in the listed currency on a recurring basis (monthly or annually).

Billing

Payments are processed by Stripe. By providing payment details, you authorize us (and Stripe) to charge the applicable fees, taxes, and any other amounts to your payment method on each renewal date until the subscription is cancelled.

Renewal and cancellation

Subscriptions renew automatically for the same term unless cancelled at least one day before the renewal date. You can cancel at any time from the in-app billing settings; cancellation takes effect at the end of the current billing term, and you keep access until then.

Refunds

Except where required by law, fees are non-refundable. If we materially fail to deliver the Service, contact us and we’ll work toward a fair resolution — credits or pro-rated refunds, depending on the situation.

Taxes

Fees are exclusive of taxes, levies, and duties. You are responsible for any sales tax, VAT, GST, withholding, or similar amounts, except for taxes based on our net income.

Price changes

We may change prices for paid plans with at least 30 days’ notice. Changes take effect on the next renewal after the notice period.

08

Acceptable use

You agree to use the Service only for lawful purposes, in line with these Terms. Among other things, you will not:

  • Send unlawful, deceptive, fraudulent, defamatory, harassing, or threatening content through the Service.
  • Use the Service to send unsolicited bulk email (spam) or to circumvent anti-spam laws such as CAN-SPAM, CASL, or the ePrivacy Directive.
  • Probe, scan, or test the vulnerability of the Service, or breach security or authentication measures, except through a coordinated disclosure to security@signaturin.com.
  • Interfere with, disrupt, or place undue load on the Service or its infrastructure.
  • Reverse-engineer, decompile, or otherwise attempt to extract the source code of the Service, except where permitted by law.
  • Use the Service to build a competing product, or to benchmark it for the purpose of building one.
  • Resell, sublicense, or make the Service available to third parties as a service, except where we expressly permit it in writing.
  • Use the Service in connection with high-risk activities where failure could lead to death, personal injury, environmental harm, or critical infrastructure damage.

We may suspend or terminate access if we reasonably believe your use of the Service violates these rules, particularly if continued use puts the Service, our other customers, or third parties at risk.

09

Intellectual property

The Service, including all software, design, branding, documentation, and underlying technology, is owned by us and our licensors and is protected by intellectual property laws. Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, revocable license to access and use the Service during your subscription.

You may not use our name, logo, or trademarks without our prior written consent, except to identify that you are a signaturin customer. If you send us feedback or suggestions about the Service, we may use them without restriction or obligation to you.

10

Third-party services

The Service may interoperate with third-party services (such as Google Workspace, Stripe, Anthropic, and others). Your use of any third-party service is subject to that service’s terms, and we are not responsible for the third-party service. If you enable an integration, you authorize us to exchange information with that service as needed to make the integration work.

11

Service availability

We work hard to keep the Service available and performant, but we do not promise uninterrupted access. The Service may be temporarily unavailable for planned maintenance, urgent fixes, third-party outages (including upstream Google Workspace incidents), or events beyond our reasonable control.

Enterprise customers may receive a separate, written Service Level Agreement. Absent such an SLA, the Service is provided on an as-available basis.

12

Warranty disclaimer

The next two sections (warranty disclaimer and limitation of liability) are written in deliberately formal language because the law largely requires it. We have tried to keep the rest of the document friendly — please read these sections carefully.

Except as expressly stated in these Terms, the Service is provided “as is” and “as available” without warranties of any kind, whether express, implied, statutory, or otherwise. To the maximum extent permitted by law, we disclaim all warranties, including the implied warranties of merchantability, fitness for a particular purpose, title, and non-infringement.

We do not warrant that the Service will be error-free, secure, or uninterrupted; that defects will be corrected; that the Service is free of viruses or other harmful components; or that AI Output, analytics, or recommendations will be accurate or reliable.

13

Limitation of liability

To the maximum extent permitted by applicable law, neither party will be liable to the other for any indirect, incidental, consequential, special, exemplary, or punitive damages — including lost profits, lost revenue, lost data, business interruption, or loss of goodwill — arising out of or related to these Terms or the Service, even if advised of the possibility of such damages.

Each party’s total cumulative liability arising out of or related to these Terms or the Service is limited to the amount you actually paid us for the Service in the twelve (12) months immediately preceding the event that gave rise to the claim. For free-tier usage, that amount is one hundred U.S. dollars (US$100).

Nothing in these Terms limits or excludes liability that cannot be limited or excluded under applicable law — for example, liability for fraud, willful misconduct, or, in some jurisdictions, gross negligence.

14

Indemnification

You agree to defend, indemnify, and hold us harmless from and against any third-party claims, damages, liabilities, losses, and reasonable expenses (including legal fees) arising out of or related to: (a) your use of the Service in violation of these Terms; (b) your Customer Data, including any claim that it infringes a third party’s rights or violates applicable law; or (c) your violation of any law or rights of a third party.

We agree to defend, indemnify, and hold you harmless from and against any third-party claim alleging that the Service, as provided by us and used in accordance with these Terms, infringes that party’s intellectual property rights. Our obligation does not extend to claims arising from your Customer Data, your modifications to the Service, or your use of the Service in combination with anything we did not supply.

15

Suspension and termination

You may cancel your subscription at any time from the billing settings page. You may also delete your account at any time; we will delete or anonymize your data as described in the Privacy Policy.

We may suspend or terminate your account if you materially breach these Terms (including failure to pay), if continued use of the Service creates a security or legal risk for us or our other customers, or if required by law. Where reasonable, we will give you notice and an opportunity to cure.

On termination, your right to access the Service ends. We will make Customer Data available for export for at least 30 days after termination, except where prohibited by law. After that, we may delete it.

16

Changes to these Terms

We may update these Terms from time to time. For material changes, we will give you at least 30 days’ notice by email or in-app banner before the change takes effect. Your continued use of the Service after the effective date constitutes acceptance of the updated Terms. If you do not agree, you may cancel your subscription before the change takes effect.

17

Governing law and disputes

Governing law: [JURISDICTION — to be confirmed]. Venue for disputes: [JURISDICTION — to be confirmed]. These clauses will be finalized when the operating legal entity is confirmed. Until then, the parties agree to first attempt to resolve any dispute informally through good-faith negotiation for at least 30 days.

Nothing in this section prevents either party from seeking injunctive or equitable relief in a court of competent jurisdiction to protect intellectual property or confidential information. Consumers in the European Union retain the protections of their local mandatory consumer law.

18

General

Entire agreement

These Terms, together with the Privacy Policy and any Data Processing Addendum or order form executed between us, are the entire agreement between you and us regarding the Service, and supersede any prior or contemporaneous agreements.

Severability

If any provision of these Terms is found unenforceable, the remaining provisions remain in full force, and the unenforceable provision will be modified to the minimum extent necessary to make it enforceable while preserving the parties’ intent.

No waiver

Our failure to enforce any right or provision is not a waiver of that right or provision.

Assignment

You may not assign these Terms without our prior written consent, except to a successor in a merger, acquisition, or sale of substantially all assets. We may assign these Terms in connection with a corporate transaction or to an affiliate, with notice to you.

Force majeure

Neither party is liable for delays or failures caused by events beyond reasonable control — natural disasters, war, civil disturbance, labor disputes, internet outages, government action, or upstream-provider failures.

Notices

We may send notices to you by email to the address associated with your account, or via in-app banner. You may send legal notices to us at legal@signaturin.com.

19

Contact

Questions about these Terms? Reach us at:

  • Legal: legal@signaturin.com
  • Sales and billing: hello@signaturin.com
  • Security: security@signaturin.com
Operating entity: [JURISDICTION — to be confirmed]. Registered address and company number will be listed here once finalized.

Questions

Anything here unclear? We’ll answer in plain language.

Drop a note and a real person on the team will get back to you — usually within one business day.

hello@signaturin.com