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Constructor Estimator BY ORBIT TECH LAB

Privacy Policy

Application: Constructor Estimator (com.orbittechlab.constructorestimator)
Developer: Orbit Tech Lab
Effective Date: January 1, 2026 · Last Updated: November 2026
Key Summary: Constructor Estimator is an offline construction estimation utility. It does not require user registration, does not collect personal data, contains no tracking or analytics SDKs, serves no third-party advertisements, and does not transmit information over the internet.

1. Introduction

Orbit Tech Lab ("we", "our", or "us") is committed to protecting the privacy and security of users of the Constructor Estimator mobile application (the "App"). This Privacy Policy explains our practices regarding user information when you download, install, and use the App.

2. Information We Collect

Constructor Estimator is built with an offline-first, privacy-by-design architecture:

  • Personal Data: We do not collect names, email addresses, phone numbers, physical addresses, or any government identification numbers.
  • Account Credentials: The App does not require user accounts, passwords, or authentication.
  • Financial & Payment Data: We do not collect credit card numbers, bank account numbers, or billing addresses.
  • Device Identifiers & Telemetry: We do not collect IMEI numbers, MAC addresses, Android Advertising IDs (AAID), or hardware serial numbers.
  • Location Data: We do not access GPS coordinates, cell tower locations, or Wi-Fi network information.
  • Sensors & Peripherals: The App does not access the device camera, microphone, contacts, or calendar.
  • User Calculation Data: Project parameters you input (such as plot length, plot width, room counts, and material unit prices) are saved solely inside your mobile device’s private local sandbox storage (via Android local key-value storage). This information is never transmitted to any external server.

3. How Information Is Used

The calculation data you provide is used strictly within the App on your local device to:

  • Calculate plot areas, Marla-to-Kanal conversions, and land purchase fees.
  • Estimate physical construction materials (brick counts, cement bags, sand volume, crushed aggregate volume, and rebar tonnage).
  • Render side-by-side contractor quote comparisons and budget breakdowns.
  • Generate local Bill of Quantities (BOQ) PDF documents that you may optionally print or share through Android’s native share sheet.

4. Third-Party Services & SDKs

Constructor Estimator does not integrate any third-party SDKs that transmit telemetry, ads, or usage data:

  • Advertising SDKs: None. No Google AdMob, Unity Ads, AppLovin, or Meta Audience Network SDKs are included.
  • Analytics SDKs: None. No Google Firebase Analytics, Mixpanel, Adjust, AppsFlyer, or Flurry trackers are included.
  • Crash Reporting SDKs: None. We do not use third-party remote crash reporters.

5. Device Permissions

Constructor Estimator requires no sensitive Android permissions. Specifically:

  • CAMERA, RECORD_AUDIO, READ_CONTACTS, and ACCESS_FINE_LOCATION are not requested.
  • MANAGE_EXTERNAL_STORAGE and READ_EXTERNAL_STORAGE are not requested. When exporting a PDF report, the App uses standard Android Storage Access / Share intents to transfer the document safely to the user’s designated app without accessing other user files.

6. Data Retention Policy

Because all calculation data is stored strictly on your physical device:

  • Your calculations and custom rates remain on your device for as long as the App remains installed, or until you choose to delete them.
  • Orbit Tech Lab does not maintain any backup, copy, or remote database of your data.

7. Data Deletion Instructions & User Rights

Every user has complete control over their saved data and can permanently wipe it at any time using any of the following methods:

Method 1: In-App Data Wipe (Instant)

  1. Open the Constructor Estimator app on your Android device.
  2. Tap the Settings icon in the bottom navigation bar.
  3. Scroll down to the Data & Storage Management section.
  4. Tap Delete All Data.
  5. Confirm the prompt by tapping Delete All.

This action instantly purges all saved projects, custom material rates, room configurations, and cached app settings from your device storage.

Method 2: Android Operating System App Settings

  1. Open your Android device's Settings.
  2. Navigate to Apps or Application Manager.
  3. Select Constructor Estimator from the list.
  4. Tap Storage & Cache.
  5. Tap Clear Storage (or Clear Data) and confirm.

Uninstalling the App also permanently removes all associated application data from the device.

Method 3: Web or Email Data Deletion Inquiries

Because Constructor Estimator operates 100% offline and does not maintain any central servers, user accounts, or cloud databases, Orbit Tech Lab does not retain, possess, or have access to any of your project calculations or personal records.

If you have questions regarding data deletion or wish to receive written confirmation of our zero-retention architecture, you may contact our dedicated privacy officer at:

Email: support@orbittechlab.com
Subject: Constructor Estimator Data Deletion Inquiry

8. Children's Privacy

Constructor Estimator is intended for general audiences, specifically builders, civil engineers, contractors, and adult property owners (ages 18 and older). We do not knowingly collect information from children under 13 years of age.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last Updated" date. We encourage you to review this Privacy Policy periodically.

10. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our practices, please contact us:

Orbit Tech Lab
Email: support@orbittechlab.com
Website: https://constructor-estimator.orbittechlab.com