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Legal Notice

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Reporting Security Vulnerabilities

Security vulnerabilities can be reported confidentially to security@jch-technologies.de.

Cybersecurity Support Period

Mandatory disclosure under the EU Cyber Resilience Act (Regulation 2024/2847, Annex II §8): for every released version of the application, free security updates are provided for at least five (5) years from its initial-release date. Delivery is via the Mac App Store and iOS App Store.

Consumer Dispute Resolution

We are neither obliged nor willing to participate in dispute resolution before a consumer arbitration board.

Liability for Content

Under applicable law (in particular DDG/DSA), we are responsible for our own content. There is no general obligation to monitor transmitted or stored third-party information. Obligations to remove or block the use of information under general laws remain unaffected. Liability is only possible from the time of knowledge of a specific infringement. Upon becoming aware, we will remove such content promptly.

Our offer may contain links to external third-party websites. We have no control over their content. The respective provider is always responsible. We remove links upon becoming aware of legal violations.

Content created by the vendor in this application is subject to German copyright law. Reproduction and distribution outside the limits of copyright require prior written consent of the author.

Third-party Libraries (excerpt) & Acknowledgements

Dart / Flutter:

Native (bridge helper, separate app):

  • libpcap (BSD-3-Clause) — Layer-2 capture for GOOSE
  • swift-asn1 (Apache-2.0) — BER encoding for ACSE / OPC support structures

Protocol specifications:

  • IEC 61850-6 — Substation Configuration Language (SCL)
  • IEC 61850-7-2 / 7-3 / 7-4 — data model and CDC
  • IEC 61850-8-1 — MMS mapping (ISO 9506-1/-2)
  • IEC 61850-9-2 — GOOSE / Sampled Values

These projects are provided under their respective open-source licenses.

Trademarks

All product and company names are trademarks or registered trademarks of their respective owners.

  • Apple, macOS, iPadOS, iOS are trademarks of Apple Inc.
  • IEC 61850 is a standard of the International Electrotechnical Commission.
  • Phoenix Contact, Siemens, ABB, Schneider Electric and other vendor or device identifiers mentioned are used for identification and compatibility purposes only and are trademarks of their respective owners.

App and Protocol Disclaimer

Use of this application is at your own risk. No guarantee is given for accuracy, completeness, availability or fitness for a particular purpose. The application serves as an engineering and test tool for the IEC 61850 protocols (MMS, GOOSE) and the SCL data model. Messages and values may originate from third parties (IEDs, servers, devices, engineering tools); we accept no responsibility for their content or resulting damages.

IMPORTANT – Industrial / Safety-critical Environments:

  • Use in safety-critical, functional-safety or regulated environments (e.g., SIL-rated protection devices, busbar / differential protection, protection relays in productive grids) is not intended and not certified.
  • The application is designed as an engineering and test tool. It does not replace certified protection, control or substation automation equipment.
  • Writes (Write service) on productive IEDs can trigger switching operations, control interventions or protection function changes. Before any write to a productive IED it is the user's express responsibility to understand the consequences and, if necessary, isolate the bay/substation block.
  • Productive use requires your own assessment, network isolation (VPN / VLAN / firewall), TLS / authentication mechanisms, and where appropriate IEC 62351 substation security extensions.

Lawful Use

The application must only be used in compliance with applicable national laws and regulations. The vendor expressly disclaims any illegal use. Unauthorised access to third-party systems (IEDs, substation automation) without the operator's consent is a criminal offence (in particular § 202a German Criminal Code in Germany; comparable provisions elsewhere).

Terms of Use and Purchases

Our Terms of Use apply to the software. For Paddle purchases, the Paddle entity identified at checkout is the seller (Merchant of Record); JCH Technologies provides the software. Apple purchases are subject to the conditions indicated by the relevant purchase provider.

See our Privacy Policy for account, device and subscription data processing.

Governing Venue

Mandatory jurisdiction rules, particularly consumer protections, remain unaffected. The purchase relationship with Paddle is subject to its terms and mandatory statutory rights.

General Notice

Software may contain bugs despite due care. This application is continuously improved and updated. Please report issues or suggestions to mail@jch-technologies.de.

Severability

If any single provision of this document is or becomes invalid or unenforceable in whole or in part, the validity of the remaining provisions shall remain unaffected. In place of the invalid provision, a valid and enforceable provision shall be deemed agreed that most closely reflects the intended economic purpose.

Withdrawal, Refunds and Subscriptions

Our Withdrawal and Refunds information explains the contact channels for Paddle and Apple purchases. Managing and cancelling subscriptions is handled through the relevant purchase provider. Mandatory statutory rights remain unaffected.

As of: 05.11.2026

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