Terms of Use

Crest Invoice is a personal software project operated by the Crest Invoice Team: Alina Riaby and Pavel Riaby.

These terms apply whenever you use Crest. By choosing a feature, you ask Crest to perform it under these terms. The Privacy Policy explains how personal data is handled. Questions: support@crest-invoice.com.

Service and eligibility

Crest is a free, early-stage invoicing project. You can create and download invoices and, where offered, opt into hosted features: Live Invoices, sending, returning access and status tracking. Crest is not a payment, legal, tax or accounting service.

You must be 18 or older, have legal capacity, and have authority to issue the invoice or act for its sender — including the authority to provide any client or other personal data you enter.

As an early-stage service, features can change, pause or be discontinued. Where practicable, Crest gives reasonable notice of a material change and a workable way to save or export affected invoices first.

Your responsibilities

You are responsible for the accuracy and lawfulness of your invoices: identities, items, tax, currency, totals, dates, payment instructions, client data and delivery. Required fields and recordkeeping differ by jurisdiction, and Crest's guides are general information rather than legal, tax or accounting advice — check the rules that apply to you and use a qualified adviser when needed.

You confirm that you have a lawful basis or other authority to enter client data and send the invoice, and that you follow applicable privacy and marketing rules. Check the final PDF or Live Invoice before sending, and keep the records the law requires.

Payments and third parties

Crest displays the payment instructions and links supplied by the invoice creator and can record a reported status. Crest does not receive, hold, route, settle or guarantee funds, and is not a payment processor.

Availability, fees, exchange rates, fraud controls, refunds and disputes are between the relevant parties and their payment providers. A client's payment report is not proof of settlement — the invoice sender must verify receipt independently.

Third-party links and services have their own terms and privacy practices. Crest is responsible for its own software and processing, not for a third party's independent service.

Acceptable use

Do not use Crest to:

• create or send unlawful, deceptive, fraudulent, infringing or abusive invoices;
• distribute malware, phishing, spam or harassment;
• impersonate a person or organisation, or use personal data without authority;
• probe, bypass or interfere with security, access controls or rate limits;
• run automated scraping or load that harms the service or other users; or
• violate a relevant provider's rules or applicable law.

Crest may investigate and proportionately restrict abusive use, and will, where feasible and lawful, preserve a way for the affected user to obtain their lawful data.

Your content, termination and availability

You keep the rights to the invoices and other content you provide. You grant Alina Riaby and Pavel Riaby only the limited licence needed to render, host, send and operate the features you request. Crest keeps the rights to its software, site, documentation and brand, subject to any stated open-source or third-party licence.

You can stop using Crest at any time and delete hosted data through the product controls or support@crest-invoice.com. Crest may suspend or terminate access for a material breach, abuse, a security need or a legal requirement. Data is then deleted or isolated under the Privacy Policy, subject to narrow legal evidence and backup expiry.

Crest comes with no uptime promise. Maintenance, unexpected failures, provider interruptions or early-stage changes can make it temporarily unavailable — keep final invoices and important records outside the service.

Liability and disputes

To the extent the law permits, Crest provides the early-stage service and its general-information guides as they are, without promising that every feature will be uninterrupted, error-free or suited to a particular legal, tax or payment outcome. Checking invoices and payment receipt remains your responsibility.

Nothing in these terms excludes or limits responsibility for fraud, wilful misconduct, gross negligence, death or personal injury where caused, mandatory consumer rights, data-protection responsibility, or anything else that cannot lawfully be excluded. Mandatory rights prevail over any inconsistent wording here, and these terms set no artificial monetary cap on liability for this free service.

Serbian law governs these terms except where a mandatory law requires otherwise. Before starting court proceedings, email support@crest-invoice.com so the issue can be addressed in good faith. This does not restrict mandatory consumer, data-protection, jurisdiction, complaint or court rights, and these terms require no exclusive court or arbitration venue.

Changes and contact

Write to the operators at support@crest-invoice.com.

The version and effective date appear at the top. Material changes receive appropriate notice, and prior versions remain retrievable. Continued use does not accept a new purpose or obligation where the law requires a separate agreement, and a future paid subscription or payment service will get separate terms before it is offered.