Terms of Service

1. Who these terms are with

This website is operated by 021 OÜ, an Estonian Osaühing (private limited company) with registry code 11728851 and EU VAT number EE101488194, registered at Kaupmehe tn 7-115, 10144 Tallinn, Kesklinna linnaosa, Harju maakond, Estonia. Contact: admin@zero21ou.com, +372 5123-4567.

2. What this website is

zero21ou.com describes the professional services of 021 OÜ and provides a way to enquire about them. Nothing on it is an offer capable of acceptance, and no contract comes into existence through this website. Services are supplied only under a signed written agreement or statement of work.

3. The scope calculator is indicative

The consultation tool produces a planning aid — indicative phases, a duration band, a team composition and a suggested contract model — computed from the options you select. It is not a quotation, an estimate for procurement purposes, or a commitment to any timeline or team. A binding proposal is issued in writing after a technical discovery session, is itemised by phase, and states its own validity period.

4. No published prices

We do not publish day rates or package prices, because a figure quoted before the systems involved have been seen is a figure that has to be revised. All fees are agreed in writing per engagement. Prices are quoted in EUR and are exclusive of VAT; VAT-registered business customers in other EU member states are invoiced under the reverse-charge mechanism.

5. Intellectual property

5.1 This website

The design, text, code and graphics of zero21ou.com are the property of 021 OÜ. You may read, print and quote from it with attribution. You may not republish it wholesale, present it as your own, or scrape it for the purpose of building a competing representation of this business.

5.2 Work produced under an engagement

Ownership of everything produced specifically for a client under a statement of work — source code, database schemas, infrastructure definitions, specifications and documentation — transfers to the client on final payment for the relevant milestone. We retain ownership only of pre-existing generic tooling and libraries we bring with us, and those are supplied to the client under a perpetual, irrevocable, royalty-free licence. We keep no licence-back over client work and no ability to disable a delivered system.

6. Confidentiality

Information you send through this website in connection with a project enquiry is treated as confidential and is disclosed only to the engineers assessing it. We will sign your non-disclosure agreement before a detailed discussion; ask and we will send ours if you prefer.

Please do not send credentials, production data, or personal data belonging to third parties through these forms. If you need to share something sensitive, tell us and we will arrange a secure channel.

7. Work we do not accept

We decline engagements, in whole or in part, in the following areas. This is a standing position, not a matter of price:

• gambling, betting, lotteries and adjacent real-money gaming systems;
• adult content platforms;
• systems whose purpose is to circumvent, evade or defeat security controls, access restrictions, content moderation or law enforcement;
• unsolicited bulk messaging, scraping in breach of a service’s terms, click fraud, or synthetic engagement of any kind;
• cryptocurrency token issuance, trading signals or yield products aimed at retail investors, and multi-level marketing structures;
• anything requiring a licence the client does not hold — for example payment institution, credit institution, insurance intermediation or medical device software — until that licence is in place.

Where regulated work is otherwise lawful and the client is properly licensed, we ask to see the licence before scoping begins.

8. Liability

The content of this website is provided for information. We take care that it is accurate but do not warrant that it is complete or current, and we accept no liability for decisions taken solely on the basis of it. Liability arising from an engagement is governed exclusively by the agreement covering that engagement, which sets its own limits and remedies. Nothing here excludes liability that cannot lawfully be excluded, including for intent or gross negligence.

9. Availability

We aim to keep this website available continuously but do not guarantee uninterrupted access, and we may change or withdraw any part of it. Planned maintenance is scheduled outside Estonian business hours where possible. Service levels for systems we operate for clients are defined in the relevant agreement, not here.

10. Governing law and disputes

These terms are governed by the law of the Republic of Estonia. Disputes that cannot be settled by discussion fall to the Harju County Court (Harju Maakohus) in Tallinn.

If you have a complaint, please raise it with us first at admin@zero21ou.com — most matters are resolved that way. 021 OÜ sells to businesses, not to consumers, so consumer dispute-resolution procedures do not apply to our engagements.

11. Changes

We may update these terms; the version in force is the one published here, dated at the top. Changes do not affect any signed agreement already in place. See also our Privacy Policy and Cookie Policy.