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Privacy Policy

iNC-Mill Privacy Policy

Updated: November 5, 2026

This policy explains data processing for iNC-Mill's on-device tools, subscriptions, and online AI Q&A.

1. Local files and settings

NC/G-code files, STEP/STP and STL models, preview caches, and app settings are stored on your device or in system file locations you choose. Core file management, NC editing, parsing, model viewing, toolpath inspection, and simulation run on device. These tools do not require uploading machining files to our servers.

Syncing or transferring content through system file locations, sharing, or other apps depends on the services and settings you choose.

2. Subscriptions and purchases

Apple processes subscription payments. The app uses StoreKit entitlement information, such as active status, expiry date, and product ID, to verify and maintain subscription access. We do not receive your payment details or Apple ID credentials.

3. Online AI Q&A

Sending a question to the iNC AI assistant requires internet access. Requests are sent to the AI service and include:

  • Your question and relevant conversation used to understand it;
  • Machining context included in the request, such as controller, material, tool, machine, cutting parameters, or NC snippets;
  • A request identifier, an app-generated device identifier, language, unit system, and request mode.

This information is used to generate answers, associate requests, and troubleshoot the service. The AI service may use its configured model services to process questions and context. On-device machining file processing does not mean AI Q&A works offline.

When you submit an answer rating, the related request identifier, device identifier, rating, and category are also sent to handle feedback and improve answers. Include only information you are willing to send to the online service.

Conversation history may be stored on your device. Deleting local conversations does not delete data already sent to the service. Contact us below to ask about or request deletion of submitted questions, feedback, or support materials.

4. Diagnostics and support

If you voluntarily email logs, screenshots, or sample files, we use them to handle your support request and troubleshoot the issue. Where possible, send a minimal example that reproduces the problem.

5. Sharing and security

We do not sell or rent your personal information. Apple processes subscription payments; the online AI service and its configured model services process Q&A requests. You choose whether to share files or send support materials to us.

We use system security mechanisms and reasonable safeguards, but no system can guarantee absolute security.

6. Your choices

You can use on-device tools without sending AI questions; delete local files and conversations, clear app data, or uninstall the app; manage subscriptions in system settings; and contact us about data you submitted or to request its deletion.

7. Children and policy updates

The app is for general users and is not intended to collect children's personal information. Contact us if such information was submitted inadvertently.

We may update this policy as features and data processing change. Material changes will be communicated in-app or through release notes.

8. Contact

Privacy enquiries: fghnntp@icloud.com

9. Website analytics and operational logs

The website uses self-hosted Umami to measure page views and clicks on product store and contact links. Properties include public page paths, product, placement, language, website release, environment, and validated UTM campaign tags. Referrers are reduced to the necessary source domain. This analytics does not collect machining file contents or filenames, question text, email addresses, licence codes, or access tokens.

Browser requests carry IP and browser information. The analytics service uses these inputs to derive rotating anonymous visitor and visit identifiers. Counts are estimates, not exact people, installations, or purchases. The public collection endpoint accepts anonymous submissions and cannot eliminate all forged data.

Ordinary website access logs retain query-free, allowlisted public paths, status codes, timings, request identifiers, and referrer domains for operations. They do not retain raw IP, User-Agent, full Referer, or query strings. Error diagnostics are classified in memory before timestamps, severity, and categories are persisted; raw request text is not stored. Alibaba Cloud SLS operational logs are currently retained for 90 days, host logs use restricted rotation, and backup copies are retained for 30 days. Anonymous behaviour data is currently stored in the self-hosted analytics database; changes to retention will be reflected here.

Website analytics respects browser Do Not Track and Global Privacy Control signals. Setting this site's localStorage key umami.disabled to 1 disables browser analytics. Blocking scripts or collection requests does not prevent page use or store navigation. These choices do not disable server logs needed to operate the website. Contact the address in section 8 for privacy requests.