Privacy Policy
Your privacy matters. Trailium is designed to process your photos locally on your device. We don't collect, store, or transmit your images.
Key Points
Your Photos Stay Yours
All processing is done locally on your device. Your images are never uploaded anywhere.
No Account Needed
We don't collect personal information. No email, no name, no sign-up required.
Free with Ads
The app is ad-supported. You can opt out of personalized ads through device settings.
Information We Collect
Device Information
Trailium collects basic device information (device model, OS version) to optimize image processing performance and ensure compatibility. This data is processed locally and not transmitted to our servers.
Usage Analytics
We collect anonymized usage statistics (feature usage, processing times, error reports) to improve app performance and identify bugs. This data cannot be used to identify individual users.
Ad-Related Data
Our ad partners may collect advertising identifiers and basic demographic data to serve relevant ads. You can opt out of personalized advertising through your device settings.
How We Use Your Information
App Improvement
Anonymized usage data helps us understand which features are most popular, identify performance bottlenecks, and prioritize development efforts.
Processing Optimization
Device information is used locally to auto-tune processing parameters (thread count, memory allocation) for optimal performance on your specific hardware.
Ad Support
Trailium is free and supported by ads. Ad-related data is used by our ad partners to display relevant advertisements. We do not sell your personal data.
Data Storage & Processing
Local Processing
All image processing happens entirely on your device. Your photos are never uploaded to our servers. Star trail stacking, time-lapse creation, and video encoding are performed locally.
No Account Required
Trailium does not require account creation. We do not collect names, email addresses, or any personally identifiable information to use the app.
Photo Library Access
Trailium requests access to your photo library to import images for processing and save results. We only access photos you explicitly select or that the app creates. We never browse or upload your photo library.
Third-Party Services
Advertising Partners
We use Google AdMob to display ads. AdMob may collect device identifiers and usage data according to their own privacy policy. You can review Google's privacy practices at their privacy center.
Analytics
We may use anonymized analytics services to understand app usage patterns. All analytics data is aggregated and cannot identify individual users.
No Data Sharing
Beyond our ad and analytics partners, we do not share, sell, or transfer your data to any third parties.
Your Rights
Opt-Out of Personalized Ads
You can disable personalized advertising through your device settings (iOS: Settings > Privacy > Apple Advertising; Android: Settings > Privacy > Ads).
Data Deletion
Since we don't store personal data on our servers, there's nothing to delete. Uninstalling the app removes all locally stored data from your device.
Camera & Photo Permissions
You can revoke camera and photo library permissions at any time through your device settings. The app will still function but won't be able to capture or import images.
Questions About Privacy?
If you have questions about this privacy policy or how Trailium handles your data, we'd love to hear from you.
Contact Us