Terms of work
Effective from 26 October 2026
This page covers what is common to every KOLYVAN TECHNO project. The scope, timeline and costs of a specific platform are set in the contract and its estimate.
The contractor is KOLYVAN TECHNO, a platform development studio, Spain. Responsible person: Kolyvan. Full details are given in the contract.
1Contract and estimate
Every project has its own contract. The estimate is its appendix: scope, stages, timeline, what is and isn’t included, expected costs. Scope changes are made as a new version of the estimate, which you accept before work on it begins.
2Payment
The platform is paid in two parts: 50% when you accept the estimate and sign the contract, and development starts that day; 50% before handover. Payment is in USDT or USDC on one of these networks: TRC-20, BEP-20, Polygon, Arbitrum, Base, Optimism, Avalanche or Ethereum (ERC-20), to the personal address shown in the account and in the payment request. The coin and network must match the ones you chose: a payment in another coin or on another network is not credited automatically and is reviewed by hand. A payment counts once the network confirms it; you can pay in parts or in advance, and any surplus stays on the account balance.
3Ownership
Code, domain, servers, bots and other resources created for you pass to you after full payment, following the handover checklist. Until then they stay with us.
4Client costs
Servers, domain, storage, image and video generation, paid services and APIs are paid by you, at cost. We name every paid item with its price before buying and show it in your account.
5Stage acceptance
Development runs in stages. You can check every stage on a demo stand. A stage is accepted when you press “Accept” in your account, or if no notes are received within 5 business days. Notes within the agreed scope are fixed at no extra charge.
6Confidentiality
We don’t share your data, your customers’ data or business information with third parties, except where needed to run the platform (hosting, payment and email services) or required by law. Secrets and access are stored separately and handed only to you.
7Portfolio
We may show the platform in our portfolio (screens, description, general figures) only with your consent. We never publish prices or internal data.
8Warranty
For 14 days after the platform is accepted we fix bugs in our code for free, even without a support subscription. The warranty does not cover changes or new features.
9Support
Support is an optional subscription from $300 a month. The price for a specific platform depends on its complexity, load and integrations; it is set in the estimate and fixed in the contract, and changes only after a major change to the platform, with 30 days’ notice. Subscription terms: you can start, pause or resume it at any time; a month counts from the day of payment. We recommend the first month after launch; in that month changes and fixes are unlimited. In other months: bugs in our code are unlimited; outages get a response within an hour, 9:00 to 23:00 Moscow time, serious ones at night too; up to 15 small changes and one medium change a month; anything large goes into a separate estimate. Support is a public offer: paying for a month means accepting its terms. Without a subscription, one-off changes go by a separate estimate and outages in queue order. We never switch the platform off.
10Referrals
If a client comes to us on your recommendation and pays their first invoice, you get a month of support as a gift. The bonus can be spent only on a support subscription, not on one-off changes and not as cash.