Terms & Conditions

1. Acceptance

By registering and using HMI Library you accept these terms. If you do not agree, do not use the service. Accounts may be terminated for breach.

2. Service description

HMI Library is a web service (SaaS) offering a library of industrial symbols compliant with ISA-101 / ISA-5.1, downloadable as PNG and SVG, for use in HMI / SCADA systems.

3. User account

• You are responsible for keeping your password confidential and for all activity under your account.
• Notify us of any unauthorised use at hello@hmilibrary.com.
• One account is for one person or entity. Sharing credentials breaches these terms.

4. Plans & pricing

Current prices are on the pricing page. They are charged in EUR, VAT not included. Prices may change with 30 days' notice for existing subscriptions.

• Demo: free, 12 symbols, no card required.
• Starter: full catalog, 1 user, monthly or yearly billing.
• Studio: full catalog + advanced features, vendor packs.
• Enterprise: custom, annual contract, contact us.

5. Payments

Payments are processed by Stripe Payments Europe. We accept Visa, Mastercard and Apple/Google Pay where available. For intra-EU B2B invoicing with a valid VAT ID, the reverse-charge mechanism applies.

6. Renewal & cancellation

• Subscriptions renew automatically at the end of each period (monthly or yearly).
• You can cancel at any time from the Stripe customer portal (Dashboard → Billing → "Open Stripe portal"). Your subscription stays active until the end of the period already paid for.
• No pro-rated refunds for the remaining time except where required by law (see Section 7).
• For a Demo account, you can request deletion at any time by emailing us.

7. Refund policy

Under Art. 102 ff. of the Spanish Consumer Protection Act (TRLGDCU) and the EU Consumer Rights Directive, you have the right to withdraw from the contract without justification within 14 calendar days of subscribing — unless you have used the service (downloaded symbols) during that period, in which case the right of withdrawal is lost. In practice we offer a 14-day, no-questions-asked refund on the first paid period; email hello@hmilibrary.com.

8. Symbol licence

The Starter, Studio and Enterprise plans include a perpetual commercial licence for symbols downloaded during an active subscription, on the following terms:

• Allowed: use the symbols in your own or your end clients' HMI/SCADA projects, with no limit on number of projects or duration.
• Allowed: modify the symbols to fit the project's needs.
• Not allowed: redistribute the symbols as a library, pack or stand-alone collection, or include them in competing products.
• Not allowed: claim authorship of the symbols.
• OEM / redistribution: requires a specific Enterprise licence. Contact us.

The Demo plan includes a limited evaluation-only licence, with no commercial use.

9. Availability

We make reasonable efforts to keep the service available 24/7, but do not guarantee uptime except on Enterprise plans with a specific SLA. We are not liable for outages of third-party services (Stripe, Supabase, Cloudflare).

10. Warranties & liability

The service is provided "as is". The symbols are designed to industry standards but do not replace the professional judgement of the control engineer. Final responsibility for the safe design and operation of the HMI/SCADA system rests with the integrator or end user.

To the maximum extent permitted by law, our total aggregate liability for any claim is limited to the amount you paid in the previous 12 months.

11. Prohibited conduct

• Using the service for illegal purposes or to violate third-party rights.
• Attempting unauthorised access to the infrastructure.
• Automated scraping of the catalog beyond normal use.
• Reselling or redistributing the library outside the licence.

12. Intellectual property

The website, its source code, brand and symbol library are owned by HMI Library. Trademarks mentioned (Weintek, Siemens, Rockwell, Inductive Automation, Stripe, Supabase, Cloudflare) are the property of their respective owners.

13. Changes

We may update these terms. Material changes will be notified by email 30 days in advance. Continuing to use the service after they take effect implies acceptance.

14. Governing law

These terms are governed by Spanish law. For disputes with consumers resident in the EU, the courts of the consumer's domicile have jurisdiction. For businesses, the courts of the owner's domicile.

15. Contact

Any question about these terms: hello@hmilibrary.com.