1. About these terms
These terms govern your use of HVAC Charge Pro and its website, provided by MUEN Apps. By using them, you agree to these terms. If you do not agree, discontinue use. Apple’s applicable terms also govern downloads, purchases, and subscriptions through the App Store.
2. Engineering Disclaimer
HVAC Charge Pro is a calculation and reference aid. Superheat and subcooling values alone do not determine whether refrigerant should be added or removed.
You must verify instruments, selected units, refrigerant, entered measurements, equipment manufacturer instructions, approved service procedures, and applicable professional and safety requirements.
You are responsible for correct inputs and for interpreting results in the context of the actual equipment and operating conditions. Confirm that your instruments are appropriate and functioning correctly. Verify results against manufacturer documentation before acting.
Follow applicable codes, regulations, approved service procedures, and professional judgment. The app does not replace training, required qualifications, equipment-specific instructions, or safe work practices. Do not rely on a calculation alone to diagnose equipment or make a charging decision. If a result is inconsistent or uncertain, stop and verify the inputs and source documentation before proceeding.
3. Use & feature availability
Use the app only for lawful purposes within your competence and authorization. Features may change with app updates. Current feature availability and paid access requirements are described in the app. Keep your own copies of records needed for business or compliance purposes; on-device saved jobs are not a guaranteed backup service.
4. Purchases & subscriptions
Paid features may be offered through Apple StoreKit, including auto-renewable subscriptions. The purchase screen displays the applicable price, billing period, and feature access before confirmation. Payment is handled by Apple through your Apple Account.
An auto-renewable subscription renews for the next billing period unless you cancel under Apple’s applicable terms. Manage or cancel renewal in your Apple Account subscription settings before the renewal deadline shown by Apple. Deleting the app does not cancel a subscription. Cancellation generally takes effect at the end of the current paid period, subject to Apple’s terms and applicable law.
Apple handles billing, refund requests, and subscription management. Use the app’s available restore-purchase controls where applicable. Internet access and the Apple Account used for the purchase may be needed to purchase, restore, or verify access. No trial, discount, or particular subscription price is promised by this website.
5. Intellectual property
The app, website, original design, branding, and associated content belong to MUEN Apps or their respective rights holders. Subject to these terms and applicable App Store terms, you may use the app for your own authorized purposes. These terms do not transfer ownership of intellectual property. You retain rights in job information you enter.
6. Acceptable use
Do not misuse the app or website, interfere with their operation, attempt unauthorized access, distribute malicious content, infringe others’ rights, or unlawfully copy or redistribute protected materials. Restrictions do not limit rights that applicable law expressly allows, including any legally protected interoperability activities.
7. Privacy & support
See our Privacy Policy for local processing, saved jobs, Apple purchases, and support information. Share only information needed to investigate a support request. Do not send sensitive customer or job details, passwords, authentication secrets, or payment card information.
8. Accuracy & availability
We aim to provide useful tools, but do not warrant that every calculation, reference, or service will be error-free, uninterrupted, or suitable for every equipment configuration. To the extent permitted by law, the app and website are provided as available without additional warranties of fitness for a particular purpose. This does not exclude warranties or rights that cannot lawfully be excluded.
9. Responsibility & liability
You are responsible for your inputs, verification, professional decisions, and work performed using the results. To the extent permitted by applicable law, MUEN Apps is not liable for indirect or consequential losses, such as lost profits or lost business records, arising from use of the app or website.
Nothing in these terms excludes or limits liability for fraud, intentional misconduct, gross negligence, death or personal injury caused by negligence, or any other liability that cannot legally be excluded or limited. Your mandatory consumer rights remain unaffected.
10. Updates & changes
We may update the app, website, and these terms to reflect product changes or legal requirements. Revised terms will appear here with an updated date. Material changes will be communicated where required by law. If you disagree with revised terms, stop using the service and manage any subscription through Apple. Changes do not remove rights you have under applicable law.
11. Contact
Questions about these terms or a calculation issue? Contact MUEN Apps at muen@muenapps.com or visit Support.