Supplemental Terms and Disclaimer

These Supplemental Terms apply to your use of the PlantHand mobile application (the “App”) and are in addition to Apple’s Licensed Application End User License Agreement (the “Standard EULA”), which governs your license to the App. By downloading or using the App, you agree to both the Standard EULA and these Supplemental Terms.

These Supplemental Terms add to the Standard EULA. They do not replace it and do not reduce any right you have under it. In the event of a conflict, the Standard EULA controls. These Supplemental Terms address matters the Standard EULA does not, and apply as between you and Ironclad Digital LLC (“Ironclad,” “we,” “us”). If you do not agree to these Supplemental Terms, do not use the App. Refunds are handled by Apple.

1. Field estimates, not engineering design

The App is a field estimation tool. It performs the same quick calculations an operator or technician already does by hand, faster and more consistently. It is not engineering design software, it is not a process simulator, and it does not produce a certified or stamped result. Ironclad makes no representation, warranty, or guarantee that any output of the App is suitable for design, for sizing safety-critical equipment, for regulatory submission, or for any purpose requiring engineering certification. Decisions of that kind belong to a qualified engineer working from your facility’s approved methods.

2. Published correlations have limits

Every calculator in the App implements a published correlation or method and names its source. Those methods were developed for specific ranges of pressure, temperature, gas composition, and geometry, and they lose accuracy or cease to apply outside those ranges. Where a method has a published validity range, the App states it and flags a result that falls outside it, and the App states standing method constraints such as sweet-gas-only assumptions. Those flags are information, not permission. A flagged result is an extrapolation: treat it as directional only, and verify it against a method valid for your conditions before acting on it. Correlations also disagree with each other; where published sources differ, the App states the assumption it used.

3. Your responsibilities

You are solely responsible for:

Entering correct values, including the correct pressure basis (gauge versus absolute), units, and local atmospheric pressure.

Reading any validity or method flag shown with a result, and understanding what it means for your situation.

Verifying every number against your facility’s approved methods, procedures, and engineering standards before acting on it.

Complying with your employer’s operating procedures, your Operator Qualification requirements, and all applicable regulations. The App does not satisfy, replace, or evidence any OQ-covered task.

Determining whether the App is appropriate for the work in front of you.

4. Not engineering, safety, or professional advice

Nothing in the App, its outputs, its method citations, or its documentation constitutes engineering advice, safety advice, regulatory guidance, or professional advice of any kind.

Ironclad is not an engineering firm, does not offer or perform engineering services, and is not engaged in the practice of engineering. No engineer client, consultant, or professional relationship is created by your download or use of the App. No output of the App has been reviewed, approved, sealed, or stamped by a licensed professional engineer.

The method references the App links to are third-party published sources provided for your own review. Ironclad does not control them, does not warrant their content or availability, and does not endorse any conclusion you draw from them. If you need to know whether a calculation or practice meets a legal, regulatory, or engineering standard, consult a qualified engineer or the relevant authority.

5. Never the sole basis for a safety-critical decision

Gas processing and midstream work is hazardous. Do not use an output of this App as the sole basis for any decision affecting personnel safety, equipment protection, environmental release, or regulatory compliance. That includes, without limitation, purge adequacy, blowdown timing, relief or flare capacity, hydrate prevention, and inhibitor injection rates. Follow your facility’s approved procedures and your own judgment as a qualified operator.

6. Assumption of risk

You understand that gas processing and midstream operations are inherently hazardous, and that an estimate produced by the App may be inaccurate, may be based on a method that does not apply to your conditions, or may be wrong because of an input error. You knowingly and voluntarily accept the risk of relying on any output of the App, and you accept responsibility for verifying every result against your facility’s approved methods before acting on it. You agree that you are in a better position than Ironclad to judge whether a given estimate is appropriate for the work in front of you.

7. Data and data loss

The App runs entirely on your device. It has no account, collects no personal data, and makes no network connection of its own.

Method reference links open in Safari only when you tap them. Those are third-party sites; once you leave the App, that site’s own privacy practices apply and Ironclad has no involvement in or visibility into that visit.

Saved inputs and settings live in your device’s local storage. To the maximum extent permitted by law, Ironclad is not liable for lost, corrupted, deleted, or inaccessible data, whether caused by the App, your device, the operating system, storage limits, or any other cause.

8. Disclaimer of warranties and limitation of liability

The warranty disclaimers and limitations of liability in the Standard EULA apply fully to these Supplemental Terms and to all use of the App.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE APP IS PROVIDED “AS IS,” WITHOUT WARRANTY OF ANY KIND, AND IRONCLAD DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IRONCLAD’S TOTAL LIABILITY ARISING FROM OR RELATED TO THE APP SHALL NOT EXCEED THE GREATER OF THE AMOUNT YOU PAID FOR THE APP OR FIFTY DOLLARS ($50.00).

Nothing in these Supplemental Terms limits or excludes liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot be limited or excluded under applicable law. Some jurisdictions do not allow the exclusion of implied warranties or the limitation of incidental or consequential damages; in those jurisdictions the exclusions and limitations above apply only to the greatest extent those laws permit, and you may have additional rights.

9. Indemnification

You agree to indemnify and hold harmless Ironclad, its members, managers, and contractors from any third-party claim, damage, or expense, including reasonable attorney fees, arising from (a) your use of the App in a manner that violates these Supplemental Terms, the Standard EULA, or applicable law, (b) your use of the App for a purpose it expressly disclaims, including engineering design or the sizing of safety-critical equipment, or (c) your violation of any right of a third party. This obligation does not apply to the extent a claim arises from Ironclad’s own negligence or willful misconduct, and does not apply where prohibited by applicable law.

10. Changes

We may update these Supplemental Terms in a future version of the App. When we make a material change, the App will ask you to review and accept the updated terms before you continue using it. The terms in effect for you are the ones bundled with the version of the App installed on your device, shown with their effective date in the app.

11. General

If any provision of these Supplemental Terms is held unenforceable, that provision will be modified to the minimum extent necessary to make it enforceable, or severed if it cannot be, and the remaining provisions will remain in full force and effect. Ironclad’s failure to enforce any provision is not a waiver of it. These Supplemental Terms, together with the Standard EULA, are the entire agreement between you and Ironclad regarding the App.

12. Governing law

These Supplemental Terms, and any claim, dispute, or controversy arising out of or relating to these Supplemental Terms or to your use of the App, are governed by the laws of the State of Wyoming, without regard to its conflict of law principles, except where applicable law requires otherwise.

Contact

Questions about these terms? Email support@ironcladintegrity.com.