Licensor grants to Licensee a non-exclusive, non-transferable, non-sublicensable, revocable license to use the Software subject to the terms of this Agreement.

License Tiers:

• Free: Up to 5 NC-SIM analyses per month. Non-commercial use only. No API access.
• Pro (₩9,900/month): Unlimited NC-SIM analyses. All standard CAD/CAM formats. AI Addin assistant. SaaS.

Subscriptions auto-renew unless cancelled 30 days before renewal date.

EU/EEA consumers may withdraw within 14 days without reason (Directive 2011/83/EU). Once digital content delivery begins with express consent, withdrawal rights expire under Article 16(m).

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

• No Reverse Engineering: Do not decompile, disassemble, or derive source code (except as permitted by Korean Copyright Act Art. 101-4).
• No Decompilation: Use of ILSpy, dnSpy, dotPeek, Ghidra, IDA Pro, or similar tools is prohibited.
• No Core Engine Redistribution: Do not distribute, sublicense, lease, rent, or sell the Core Engine.
• Non-Competition: Do not use knowledge from the Software to develop competing products.
• No Circumvention: Do not bypass license verification or usage limits.
• Benchmark Restriction: Written consent required before publishing benchmarks.

Local Processing Principle: PMI data is processed locally by default. No external transmission without explicit consent.

AI Inference (SaaS): Only query text is transmitted (never CAD/CAM files). Data not used for training. Deleted within 30 days. Installer (on-premise) tier processes everything inside the customer network.

Telemetry: Anonymized usage stats may be collected. Installer tier can disable. SaaS tiers cannot disable license verification telemetry.

Complies with Korean PIPA (Act No. 19234), EU GDPR, Japan APPI.

All IP rights remain with Licensor. Patents pending (KIPO): AI-based CAM path prediction, Triple Hybrid RAG anti-hallucination, Z-Height dual optimization, 3-tier ontology learning.

Trade secrets protected under Korea's Unfair Competition Prevention Act (Act No. 19589).

Licensee owns analysis results and converted PMI data, but underlying algorithms remain Licensor's property.

"AS IS" / "AS AVAILABLE". No warranty of merchantability, fitness, or non-infringement.

No guarantee of CAM/CAD compatibility across all versions.

AI results are reference only — verify before manufacturing.

Liability cap: Total fees paid in the preceding 12 months.

Manufacturing disclaimer: Licensor is not responsible for equipment damage, part defects, or injury from applying Software outputs to CNC equipment.

Termination: Licensee: 30 days written notice. Licensor: immediate for Art. 3 violations, 30 days to cure for others.

Export: Subject to Korea Foreign Trade Act, US EAR, Wassenaar. No exports to sanctioned nations.

Governing Law: Republic of Korea. Seoul Central District Court (domestic). California law (US users, class action waiver). EU: consumer's country of residence. Japan: Tokyo District Court.

Arbitration: KCAB International Rules, Seoul, English + Korean.

Open Source: Third-party components per NOTICE and THIRD_PARTY_LICENSES files. OSS license terms prevail where conflicting.

Free tier: ₩0 / month. Up to 5 NC-SIM analyses per month. Non-commercial use only.

Pro tier: ₩9,900 / month. Unlimited NC-SIM analyses. All standard CAD/CAM formats. AI Addin assistant.

Any commercial use beyond Free tier limits requires a Pro subscription. Custom / on-premise deployment inquiries: support@u2dia-ai.com.

Subscription Cancellation: Subscriptions can be cancelled with 30 days written notice to support@u2dia-ai.com. The license remains active until the end of the current billing period.

EU/EEA Consumers: Under Directive 2011/83/EU, you have a 14-day withdrawal right from the date of purchase. Once digital content delivery begins with your express consent, the withdrawal right expires per Article 16(m).

Korean Consumer Protection: Under the Act on Consumer Protection in Electronic Commerce (Act No. 19354), consumers may request a refund within 7 days of purchase, unless the digital content has been used or the seal has been removed.

Contact: For all refund and cancellation requests, please email support@u2dia-ai.com with your order details.