ShieldedRecords
A plug-in proxy and consent firewall for popular health apps that strips tracking SDKs, blocks known data sinks, and routes analytics through a user-controlled proxy before letting anything leave the device.
privacy-conscious patients and reproductive-health users who want to keep using familiar apps but stop them from talking to ad networks
- Local VPN profile that blocks known ad and analytics domains while letting the app function normally
- Per-app allowlist with one-tap exceptions for analytics the user explicitly trusts
- Daily 'data blocked' digest so users see exactly what their apps tried to send and where
- Guided migration suggestions to privacy-respecting alternatives for the worst offenders
The BBC/Mozilla report shows app-side fixes are slow; users need a network-side tool today that doesn't require waiting for vendors to clean up
Multiple recent mainstream reports (BBC, Mozilla via TechCrunch, Duke, CTV) flag period/health apps leaking data to ad networks; Flo Health settled federal charges, keeping the issue top of mind post-Roe.Period tracker Stardust shares users' health data with analytics firm, says Mozilla research ↗Data Privacy in the Post-Roe Era ↗
General on-device app firewalls exist (Lockdown, AdGuard) but none are positioned specifically as a 'consent firewall for health apps' with curated health-app blocklists — Lockdown blocks all trackers generically with 300K users, leaving the health/reproductive vertical unsaturated.Lockdown Privacy: AdBlock VPN on the App Store ↗
Lockdown proves a freemium + subscription model can reach 300K users and 9.7K ratings, though aggressive paywalling in v2.0 sparked negative reviews — willingness to pay exists but is sensitive and the narrower health-app focus likely caps the TAM.Lockdown Privacy: AdBlock VPN on the App Store ↗
Post-Roe legal exposure, growing state-level health data laws (e.g., MHMDA cited in Amazon suit), and chronic bad press on mHealth privacy provide a multi-year regulatory and cultural tailwind that vendors cannot fix quickly on the app side.The privacy problems hidden in your period tracker ↗Amazon faces MHMDA lawsuit over app privacy gaps ↗
On-device firewall model is proven (Lockdown is open source and Apple-Local-Network/Android-VPN-Service based), but health-app-specific blocklists and certificate-pinning bypasses add ongoing maintenance load noted by researchers.Mobile app privacy analysis is still difficult as encrypted traffic, certificate pinning, and tracking SDKs limit visibility ↗