The rules of Calma Studio Pro: what you get, what it costs and how to cancel.
Calma Studio is a service provided by Kanpai Labs, tax ID B88931217, registered at María Auxiliadora 27, 3D, 37004 Salamanca (Spain). You can write to us any time at hello@calmacloud.com. These terms govern the Pro plan and, where applicable, use of the free plan.
Calma Studio is an Azure architecture editor with cost estimates and infrastructure-as-code generation. The free plan lets you save up to 10 designs and make 5 AI edits per month. Pro raises those limits to 100 designs and 100 AI edits per month: it is not unlimited. AI counters reset every month and your current limits are always shown in 'My account'.
Pro costs 19 € per month or 190 € per year, Spanish VAT included. You pay that amount regardless of your country, and the invoice itemises the net amount and the tax. If you buy as a business you can enter your VAT number during checkout; write to hello@calmacloud.com if you need an invoice with a different tax treatment for your case.
Payments are processed by Stripe; we never store your card details. The subscription is charged at the start of each period and renews automatically for equal periods until you cancel. Every charge produces an invoice; if you don't receive it, request it at hello@calmacloud.com.
You can cancel any time from 'My account', with no penalty and no need to explain why. Cancellation takes effect at the end of the period you have already paid for: you keep Pro until that date and your account then returns to the free plan.
If you buy as a consumer, you have 14 calendar days from purchase to withdraw without giving a reason. By subscribing you expressly ask us to start the service immediately; if you withdraw after starting to use it, we refund what you paid minus the proportion corresponding to the service already provided up to your request. To exercise it, just write to hello@calmacloud.com from your account's email address.
You may not resell the service, share your account with third parties, circumvent usage limits, access it automatically beyond what is intended, or use it for unlawful activity. We may suspend accounts that breach this, giving notice first unless there is immediate risk.
You keep all rights over the designs and content you create. We only process them to provide the service: storing them, displaying them and, if you use the AI, sending them to the model provider to generate the response. We do not use them to train models. You can delete them, and your account, at any time.
The Azure cost estimates, architecture validations and infrastructure code that Calma Studio produces are indicative and may differ from your actual Microsoft invoice or from how your infrastructure really behaves. Review them before deciding or deploying: they are not a substitute for professional judgement.
We work to keep the service available but we do not offer a service level agreement (SLA). We may carry out maintenance and change, add or withdraw features. If a change materially harms you, you can cancel as described above.
We may change the price or these terms by emailing you at least 30 days in advance. Changes apply from your next renewal; if you do not accept them, you can cancel before that date and the new amount will not be charged.
If a charge fails it is retried. If it ultimately does not go through, your account moves to the free plan and you keep your designs under that plan's limits.
We are liable under the law for damage we cause you by breaching these terms. We are not liable for indirect damage or loss of profit arising from use of the service. Nothing here limits the rights that consumer law grants you on a mandatory basis.
How we handle your data is described in our privacy policy. For payments, Stripe acts as payment service provider and processes the data needed to handle them.
These terms are governed by Spanish law. If you are a consumer, you may bring proceedings before the courts of your place of residence and you keep the right to use any dispute resolution mechanism provided by law. You can raise any complaint with us at hello@calmacloud.com.
These terms are in force since 26 July 2026.
