Privacy Policy

Effective Date: August 3, 2026 | Last Updated: August 3, 2026

This Privacy Policy explains how Beijing iDOTOOLS Technology Co.,Ltd ("we", "us", "our") collects, uses, stores and protects your information when you use the AR Ruler: Tape Measure mobile application ("the App"). This policy is intended to comply with applicable U.S. privacy laws, including CCPA/CPRA, COPPA, FTC privacy guidelines and the Apple App Store Review Guidelines.

Important Notice: AR Ruler: Tape Measure is designed as a local-first measurement utility. Camera preview, AR scene detection, distance measurement, area measurement, object measurement and similar core functions are generally processed on your device through iOS and ARKit. We do not use your camera feed to identify you and we do not sell your personal information.

Please read this policy carefully before using the App. By continuing to use the App, you confirm that you have read and understood this policy.

1. Information We Collect and Use

We process information only in line with the principles of lawfulness, fairness, transparency and necessity.

1.1 Core Measurement Data (On-Device First)

AR measurement sessions: Measurement points, distances, angles, areas, volumes, object dimensions, floor plans, annotations and similar measurement results are generated and used primarily on your device.
Camera and AR scene data: The App may use your device camera, motion sensors, depth sensors, LiDAR sensor, ARKit and related iOS frameworks to detect surfaces, estimate scale and place virtual measuring tools. This data is processed locally for measurement features unless you choose to save, export or share results.
Saved projects and preferences: Measurement history, saved projects, screenshots, preferred units, calibration settings, language settings and other preferences may be stored locally to provide a consistent user experience.

1.2 System Permissions

We may request the following permissions to deliver features. You may withdraw or change permissions at any time in your device settings:

Camera: required for AR measurement, surface detection, object measurement, ruler overlay and related visual measurement features.
Motion and device sensors: used through iOS frameworks to support AR tracking, orientation, stabilization and measurement accuracy.
Photos: optional, for saving measurement screenshots, importing selected images for measurement, or exporting selected results to your photo library.
Network: for subscription validation, App Store purchase processing, crash diagnostics, analytics, customer support and security-related operations.
Notifications: optional, for service notices, subscription status messages or App-related reminders.

1.3 Purchase and Subscription Information

If you purchase a subscription or other in-app product, payment is handled by Apple through your Apple ID. We do not receive your full payment card number, billing address or Apple ID password. We may receive limited purchase information such as product identifier, transaction status, subscription status, renewal status and non-sensitive transaction identifiers solely to unlock paid features, prevent fraud, provide support and comply with platform requirements.

1.4 Non-Identifiable Technical Data

To improve stability, performance and user experience, we may collect de-identified or aggregated technical data such as device model, iOS version, app version, crash logs, diagnostic events, general region, language setting, feature usage statistics, sensor availability and network status. We do not use this data to identify you as an individual.

2. Third-Party Services and SDKs

We use third-party services only where reasonably necessary for App functionality, subscription processing, analytics, crash reporting or customer support. These providers are subject to security and data protection review.

Apple App Store / StoreKit
- Purpose of processing: Process in-app purchases, subscriptions, renewals, cancellations and refund handling through Apple.
- Categories of data processed: Apple-managed purchase and subscription information, transaction identifiers, product identifiers and subscription status.
- Third-party privacy policy: https://www.apple.com/legal/privacy/
Apple ARKit / iOS Frameworks
- Purpose of processing: Provide camera-based AR tracking, surface detection, depth estimation, orientation and measurement functionality on supported devices.
- Categories of data processed: Camera frames, sensor readings, depth data and AR scene information processed locally by iOS and the App for measurement features.
- Third-party privacy policy: https://www.apple.com/legal/privacy/
Firebase Crashlytics (Google), if included in your App version
- Purpose of processing: Collect app crash logs and technical error reports to fix bugs and improve app stability.
- Categories of data processed: De-identified installation identifier, crash stack details, device model, operating system version and app version.
- Third-party privacy policy: https://policies.google.com/privacy
Analytics services, if included in your App version
- Purpose of processing: Collect aggregated or de-identified usage statistics to understand feature performance and improve product experience.
- Categories of data processed: De-identified device information, app events, non-precise geographic data, app version and network status.

3. How We Use Information

To provide AR ruler, tape measure, distance, area, angle, object size, floor plan and related utility features.
To save your preferences, projects and measurement settings.
To process purchases and manage subscription access.
To diagnose crashes, fix bugs, prevent abuse and maintain security.
To respond to your support requests and legal requests where required.

4. Data Storage and Cross-Border Transfers

Storage: Core measurement projects and preferences are generally stored on your device. Purchase data is processed by Apple. De-identified analytics or crash data may be stored by our service providers.
User exports: If you save screenshots, export measurements, share files or send diagnostic information, the selected content may leave the App according to the destination you choose.
Cross-border transfers: As the App may be distributed globally, limited technical and de-identified data may be transferred to servers outside your country or region. We use reasonable safeguards designed to protect such data in accordance with applicable law.

5. Your Privacy Rights (U.S. Consumers)

If you are a consumer located in the United States, you may have the following rights under applicable U.S. privacy laws:

Right to Know: Request details of the personal information we process about you.
Right to Delete: Request deletion of personal information we hold, excluding data stored only on your device or data retained where legally required.
Right to Correct: Request correction of inaccurate personal information.
Right to Opt Out of Sale/Sharing: We do not sell your personal information. We do not share personal information for cross-context behavioral advertising as defined by California law.
Right to Limit Use of Sensitive Personal Information: We do not use sensitive personal information for purposes that require a limitation right under California law.
Right to Non-Discrimination: We will not discriminate against you for exercising your privacy rights.

6. Children's Privacy (COPPA)

The App is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13, we will delete it as required by law.

7. Data Security

We use reasonable administrative, technical and organizational measures designed to protect information processed by the App. However, no method of transmission or storage is completely secure. You are responsible for keeping your device, Apple ID and local App access secure.

8. Measurement Accuracy Notice

Measurements generated by the App are estimates and may be affected by lighting, camera quality, sensor accuracy, device movement, object shape, surface texture, calibration and environmental conditions. You should not rely on App measurements for professional, construction, engineering, safety, medical, legal, commercial or other high-risk decisions without independent verification by appropriate tools or professionals.

9. Changes to This Privacy Policy

We reserve the right to update this policy as required by law or for operational reasons. The latest version will be posted in the App or on the relevant policy page with an updated "Last Updated" date. Your continued use of the App after changes take effect constitutes your acceptance of the revised policy.

10. Contact Us

If you have questions, complaints or requests regarding this Privacy Policy or your personal data, you may contact us:

Company: Beijing iDOTOOLS Technology Co.,Ltd
Email: audiocut541@gmail.com

We will respond to valid requests within the time limits required by applicable law.