Privacy Policy

01Overview

Smart Tool Factory ("we", "our", or "us") develops and publishes Android applications for measurement purposes, including Angle Meter, Angle Meter Pro, Clinometer, Clinometer PRO, Smart Tools Laser Level, and Smart Tools Laser Level Pro.

This Privacy Policy explains how we collect, use, and protect information when you use any of our applications (collectively, the "Apps"). We are committed to protecting your privacy and handling your data transparently.

02Information We Collect

We collect minimal information necessary to provide and improve our Apps:

Information collected automatically

• Device information — device model, operating system version, and unique device identifiers for crash reporting and analytics purposes.
• Usage analytics — anonymous, aggregated data about how you interact with the App, including features used and session duration.
• Crash reports — technical data about errors and crashes to help us identify and fix bugs.
• Advertising identifiers — in free versions of our Apps, we collect advertising IDs to serve personalized ads via our ad partners.

Information you provide

• Saved measurements — if you save measurement records within the App, this data is stored locally on your device and is not transmitted to our servers.
• Contact information — if you contact us for support, we may collect your email address and any information you voluntarily provide.

Information we do NOT collect

03How We Use Information

We use the collected information for the following purposes:

• App functionality — to provide core measurement features and maintain app performance.
• Improvement — to analyze usage patterns and improve the user experience, fix bugs, and develop new features.
• Advertising — in free versions, to display relevant ads through our advertising partners.
• Support — to respond to your inquiries and provide customer support.
• Legal compliance — to comply with applicable laws and regulations.

04Third-Party Services

Our Apps may use the following third-party services that collect data on our behalf:

Each of these third-party services has their own privacy policy governing how they handle information. We encourage you to review their policies.

05Advertising

Our free Apps display advertisements provided by Google AdMob. These ads may use your advertising identifier and device information to show personalized advertisements.

You can control ad personalization through your device settings:

1. Open your device Settings
2. Go to Google > Ads
3. Enable "Opt out of Ads Personalization"

06Data Storage & Security

All measurement data (angles, slopes, calibration settings, saved records) is stored locally on your device and is never transmitted to external servers.

For analytics and crash reporting data that is transmitted, we rely on industry-standard security measures provided by Google Firebase, including encryption in transit (TLS) and secure data centers.

We retain analytics data only as long as necessary to fulfill the purposes described in this policy, typically no longer than 14 months.

07Camera & Sensor Access

Some of our Apps request access to device hardware for core functionality:

08Children's Privacy

Our Apps are not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If we discover that a child under 13 has provided us with personal information, we will take steps to delete such information promptly.

If you are a parent or guardian and believe your child has provided us with personal information, please contact us so we can take appropriate action.

09Your Rights

Depending on your location, you may have the following rights regarding your data:

• Access — request a copy of the data we hold about you.
• Deletion — request that we delete your data from our systems.
• Correction — request correction of inaccurate data.
• Opt-out — opt out of personalized advertising through your device settings.
• Data portability — request your data in a portable format.

To exercise any of these rights, please contact us. We will respond to your request within 30 days.

10Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or other factors. When we make material changes, we will:

• Update the "Last updated" date at the top of this page.
• Notify users through the App or our website when significant changes are made.

We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information.

11Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please reach out to us: