Terms of Service and Acceptable Use Policy

These Terms of Service and Acceptable Use Policy ("Terms") govern your access to and use of all services, web tools (qualityforeveryone.com), and the native iOS mobile application ("Quality Calculators" / "App") provided by Quality For Everyone ("QFE", "we", "us", "our"). By accessing or using our services, you agree to be bound by these Terms. If you do not agree to these Terms, do not use the services.

Quality For Everyone provides 13 core industrial quality engineering tools (Cp/Cpk, Pp/Ppk, DPMO, OEE, RTY, PPM, Takt Time, COPQ, Gage R&R, Statistical Process Control / SPC, AQL Sampling Plans, MTBF, and FMEA / Risk Calculator) designed for engineers, metrologists, operations managers, educators, and students. Features include fully offline on-device calculation engines, client-side Excel (.xlsx) and Word (.docx) report generation, AI engineering prompts, and optional multi-device synchronization via Sign in with Apple and the user's private iCloud database.

All software code, visual layouts, calculation engine algorithms, mathematical models, text, graphics, and trademarks are the exclusive property of Quality For Everyone and protected by international intellectual property laws. Subject to compliance with these Terms, you are granted a revocable, non-exclusive, non-transferable, limited license to use the services for educational, personal, and internal business engineering estimation purposes. Reverse engineering, decompiling, disassembling, unauthorized scraping, or commercial resale of the software engines is strictly prohibited.

You agree not to: • Engage in any activity that interferes with, disrupts, or places an unreasonable burden (such as DDoS attacks) on our infrastructure. • Use automated bots, scrapers, spiders, or data extraction scripts against our services. • Attempt to bypass client-side boundaries, input validators, or security measures of the calculation engines. • Use the services for any unlawful purpose, regulatory violation, or in infringement of third-party rights.

ALL CALCULATIONS, FORMULAS, CHARTS, AND AI ASSISTANT PROMPTS ARE PROVIDED FOR EDUCATION, MODELING, AND ESTIMATION PURPOSES ONLY. While mathematical algorithms are rigorously tested against recognized industrial standards (ISO 9001, IATF 16949, AS9100, AIAG SPC/MSA manuals, ISO 2859-1, etc.), no calculation output constitutes certified engineering advice or formal sign-off. YOU MUST HAVE EVERY CALCULATION RESULT INDEPENDENTLY VERIFIED BY A QUALIFIED QUALITY ENGINEER before using it for mass production, critical tooling, safety-critical aerospace or medical systems, certification audits, or contractual customer decisions. Example data is illustrative only.

THERE IS NO GUARANTEE THAT THIS SERVICE, ANY CALCULATOR, OR ANY ASSOCIATED FEATURE WILL BE UNINTERRUPTED, CONTINUOUS, TIMELY, ERROR-FREE, OR MAINTAINED INDEFINITELY. Quality For Everyone reserves the right, at its sole discretion and without prior notice or liability, to modify, update, suspend, restrict, or permanently discontinue the service, any calculation tool, or any portion thereof at any time. We accept no liability for any loss, downtime, data disruption, or inability to access the service. Users are strongly advised to export and maintain local backups of their calculations.

The services and all outputs are provided on an "AS IS" and "AS AVAILABLE" basis without warranties of any kind, either express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement. We do not warrant that calculations will be completely error-free or uninterrupted.

To the maximum extent permitted by applicable law, in no event shall Quality For Everyone, its directors, developers, or affiliates be liable for any direct, indirect, incidental, special, consequential, or punitive damages, including without limitation loss of profits, scrap or defective part production, factory downtime, rework expenses, product recalls, data loss, or regulatory fines arising out of or in connection with the use of or inability to use the services.

The application can be used entirely offline without creating an account. Optionally, users may sign in with their Apple ID to synchronize calculations and projects across their Apple devices. Synchronization is conducted exclusively through the user's personal Apple iCloud private database (CloudKit Private Zone). Quality For Everyone operates no central database holding your calculations and has no technical means to inspect your stored data. You remain solely responsible for safeguarding your Apple credentials.

We reserve the right to modify these Terms at any time. Changes become effective upon posting to our website or app. You may terminate your agreement at any time by ceasing use of the services and using the in-app deletion controls to purge your local and iCloud records. We reserve the right to suspend access for any violations of these Terms.

These Terms are governed by and construed in accordance with generally recognized principles of international commercial law and applicable jurisdictional statutes, without regard to conflict of law principles. For legal inquiries, contact legal@qualityforeveryone.com.