Privacy Policy

Who We Are

Sun Engineering LLC ("we," "our," or "us") publishes mobile applications designed with privacy at their core. This privacy policy applies to all mobile apps published by Sun Engineering LLC, including current and future apps.

What We Do Not Collect

We believe your data belongs to you. Here is what we do not do:

• We do not collect personal information through our apps.
• We do not store your data on cloud servers.
• We do not track your usage across apps or websites.
• We do not sell, share, or rent your data to anyone.
• We do not use analytics that identify you personally.

Information Stored on Your Device

Some apps may store information you enter directly on your device. This may include:

• Calculations, preferences, and entries — such as times, dates, notes, reminders, spending records, or tracking data you create within the app.
• Subscription status — App Store purchase information used to unlock premium features, verified locally or through the app store platform.
• Device-level identifiers — Basic device identifiers required for app functionality, stored locally only.

None of this information is transmitted to our servers or shared with third parties.

Third-Party Services

Our apps may interact with platform services for purchases:

• In-app purchases — processed by Apple App Store or Google Play. These platforms handle payment according to their own privacy policies.
• App Store services — Apple and Google may collect information related to app downloads, purchases, and device compatibility according to their own policies.

We do not receive or store your full payment card information. We encourage you to review the privacy policies of Apple and Google.

Children's Privacy

Our apps are not directed to children under 13. We do not knowingly collect personal information from children under 13.

Data Security

We implement reasonable security measures within our apps to protect information stored on your device. However, no method of electronic storage is 100% secure. You are responsible for securing your device with appropriate passwords, biometrics, or encryption.

Your Rights

Because your data is stored locally on your device:

• You may delete your data at any time by clearing the app data or uninstalling the app.
• For data related to app store purchases, please contact Apple or Google support directly.

Changes to This Policy

We may update this privacy policy from time to time. When we do, we will update the effective date above. Continued use of our apps after changes means you accept the updated policy.