An interactive forensic thriller where you investigate a conspiracy by examining case files and evidence. A narrative-driven experience that simulates a forensic investigation.
>[closed]Is this a subscription?
No. Single one-time purchase of $3.99 for access to all 12 chapters. No subscriptions or in-app purchases.
>[closed]Is my reading data private?
Yes. Zero data collection, no analytics or tracking. All reading data stored locally on your device.
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Privacy Policy
Summary
Zero Substrate is 100% offline and collects ZERO data.
No internet connection required after initial download
No analytics or tracking frameworks
No user accounts or registration
All reading data stored locally on your device
No data ever transmitted to our servers (we don't have any)
One-time purchase app (no subscriptions or in-app purchases)
Data Collection
What We Collect: Nothing.
Zero Substrate does not collect, transmit, or store any personal information. We have no analytics, no crash reporters, no user profiling systems.
Local Storage
What's Stored on Your Device:
Book content: All 12 chapters stored locally
Reading progress: Current chapter, segment position, bookmarks
Evidence vault: Unlocked evidence items (IDs only, no personal data)
Statistics: Reading time, chapter completion timestamps
Purchase status: App ownership validation via Apple App Store
User preferences: Text size, language selection
Technical Detail: All data is stored using Apple's SwiftData framework (iOS 17+). Data never leaves your device. If you delete the app, all data is permanently deleted.
App Purchase
App Purchase:
Zero Substrate is a one-time purchase available through Apple's App Store. All payment processing is handled entirely by Apple.
Payments are processed securely by Apple
We never receive payment details
We do not know your name, email, or billing information
No subscriptions or recurring charges
Third-Party Services
Third-Party Services: None.
Zero Substrate contains:
✗ No advertising networks
✗ No analytics services (Google Analytics, Firebase, etc.)
✗ No social media SDKs
✗ No crash reporting tools (Crashlytics, Sentry, etc.)
✗ No A/B testing frameworks
✗ No user behavior tracking
✓ Only Apple's native frameworks (SwiftUI, SwiftData, StoreKit)
Data Sharing
Data Sharing: Impossible.
We cannot share your data with third parties because we don't collect any data to begin with. Your reading habits, progress, and preferences exist only on your device.
Children's Privacy
Children's Privacy:
Zero Substrate is rated for ages 12+ (Mature content: crime, violence themes). We do not knowingly collect data from anyone—children or adults—because we don't collect data at all.
GDPR Compliance
GDPR / EU Privacy:
Zero Substrate is GDPR compliant by design. Since we collect zero personal data, there is no data to request, export, or delete. You automatically have complete privacy.
Right to Access: N/A (no data collected)
Right to Deletion: N/A (no data to delete)
Right to Portability: N/A (no data to export)
Right to Object: N/A (no processing occurs)
Data Security
Data Security:
Since all data is stored locally on your device using Apple's SwiftData framework, your data benefits from iOS's built-in encryption and security features. We have no servers to breach, no databases to hack, no cloud storage to compromise.
Changes to This Policy
Changes to This Policy:
If we ever change our privacy practices, we'll update this page and the "Last Updated" date. However, our commitment to zero data collection will not change. If we ever decide to collect data (we won't), we would require explicit user consent and update the App Store listing.