Terms and Conditions

Last updated: 4 August 2026

These terms apply between Dachs Consulting GmbH and the business or professional customer using the hosted Sendity service, unless a separate written agreement says otherwise.

Provider

Sendity is provided by Dachs Consulting GmbH, Mierendorffweg 8, 64572 Büttelborn, Germany.

Service

Sendity provides channel-control authentication workflows. It creates short-lived authentication challenges, verifies matching messages from a channel the user controls and returns a verification result to the customer application.

The channels, limits and features included in each self-service plan are shown on the pricing page and in the customer billing area.

Pricing and billing

Paid self-service plans renew automatically for the selected monthly or annual billing period until cancelled. Fixed subscription fees are charged at the beginning of each billing period. Metered phone-verification usage is charged in arrears at the price shown for the selected plan.

Published prices exclude VAT unless explicitly stated otherwise. Stripe calculates applicable taxes from the validated billing location and tax information supplied by the customer. The customer is responsible for keeping its billing address, company details and VAT ID complete and accurate.

Stripe processes payments and issues the corresponding invoice or receipt. Failed payments may be retried. Access to paid features may be restricted or moved to the Free plan if payment remains unpaid or the subscription otherwise ends.

Plan changes take effect immediately. Stripe invoices or credits applicable prorated fixed fees according to the remaining billing period; metered usage already incurred remains payable.

Customer responsibilities

The customer remains responsible for its users, accounts, permissions, roles and authorization decisions.

• The customer must configure allowed origins, public app identifiers and verification destinations correctly.
• The customer must verify Sendity results server-side before creating or elevating an application session.
• The customer must not use Sendity for unlawful, abusive, deceptive or high-risk use cases without a suitable separate agreement and risk assessment.
• The customer is responsible for informing its own users about the customer’s use of Sendity.

Data protection

The hosted Sendity service is operated in a GDPR-compliant setup on Hetzner infrastructure in Nuremberg, Germany.

A separate data processing agreement under Art. 28 GDPR is required for production use of the hosted service. This applies where Dachs Consulting GmbH processes personal data on behalf of the customer.

Availability and changes

Dachs Consulting GmbH uses reasonable technical and organizational measures to operate Sendity securely and reliably. Specific availability commitments, support response times, service credits or dedicated operational requirements apply only if agreed separately in writing.

Dachs Consulting GmbH may update the hosted service to maintain security, compatibility, performance or legal compliance. Material changes that require customer action will be communicated with reasonable notice where practical.

Acceptable use

The customer must not misuse Sendity, attack or overload the service, attempt to bypass security controls, process unlawful content, infringe third-party rights or use Sendity in a way that harms the service, Dachs Consulting GmbH or other customers.

Open-source components

Sendity may provide open-source client libraries, adapters or reference implementations. Those components are licensed under their respective open-source licenses. The hosted Sendity service remains subject to these terms or the applicable customer agreement.

Liability

Dachs Consulting GmbH is liable without limitation for intent, gross negligence, injury to life, body or health and under mandatory statutory liability. For slight negligence, liability is limited to breaches of essential contractual obligations and to the foreseeable, typical damage, unless mandatory law provides otherwise.

Term and termination

The customer may cancel a self-service subscription at any time from the Sendity billing area. Cancellation takes effect at the end of the current billing period; fees already paid are not refunded except where mandatory law requires otherwise. The subscription can be resumed before that date.

Either party may terminate for cause where the other party materially breaches these terms and does not remedy the breach within a reasonable period after notice, unless an immediate termination right applies. Separate order forms or written contracts may define different notice, export or deletion terms.

Governing law

German law applies, excluding conflict-of-law rules and the UN Convention on Contracts for the International Sale of Goods. If the customer is a merchant, legal entity under public law or special fund under public law, the courts competent for the registered office of Dachs Consulting GmbH have jurisdiction unless mandatory law provides otherwise.