Tag Seeker:
Smart Tag Finder and Anti-Stalking Defense
Universal Smart Tracker Radar and 100% Offline Physical Privacy Defense for Android.
Locate lost items and detect unwanted tracking devices around you. Detects Apple AirTags, Samsung SmartTags, Google Find My Device, and Tile. 100% offline with zero cloud telemetry.
Dual-Mode Scanning Engine Live HUD
Toggle between 15-Second Quick Scan for rapid checkpoint sweeping and the Live Active Sweeper continuous radar with Kalman distance estimation and BLE GATT ringer.
Continuous correlation with your trajectory for 34 min. Hardware buzzer active.

Initial standby state offering one-tap toggle between 15s Quick Scan snapshot and continuous Active Sweeper with zero cloud leakage.

Real-time packet capture stream (1774 pkts, 0.08s latency) detecting nearby AirTags and AirPods with Kalman distance tracking.
The 7 Core Engineering Subsystems
Engineered from first principles with zero Google Play Services dependence. Discover how Tag Seeker provides uncompromised anti-stalking and item retrieval via Android's low-level Bluetooth controller.
Universal Multi-Brand Detection
Reverses proprietary advertisement frames simultaneously across all prevailing smart tracker ecosystems without OS vendor lock-in.
Kalman-Filtered Proximity Radar
Two-stage DSP signal pipeline: Hampel/Median outlier rejection followed by 1D Recursive Kalman Filter to cancel indoor RF multipath reflection.
Dual-Mode Scanning Engine
Engineered for flexible field operations: quick forensic audits vs. high-velocity tracking with decay staleness mitigation.
Optimized snapshot for hotel rooms, rental cars, and luggage checks. Halts BLE radio after 15s to conserve 0% battery.
Continuous real-time walking locator. Computes trajectory vectors: Approaching, Receding, or Holding with signal freshness decay.
Acoustic Geiger & Haptic Guidance
Synthetic acoustic click intervals scale dynamically from 1 click/1.5s in Cold Zone up to 15 clicks/s in the Hot Zone.
Make It Ring (BLE GATT Service)
Bypasses manufacturer cloud authorizations to trigger the physical buzzer / piezoelectric speaker directly over Bluetooth Low Energy.
Anti-Stalking & Police PDF Report
Spatio-temporal correlation algorithms flag persistent co-traveling tags. Features Public Transit Paradox Mitigator (suppresses alarms if ≥ 4 tags co-travel on buses/subways).
Trusted Vault (Whitelist Manager) & Battery Health
Register legitimate household tags to suppress false alarms while continuing to scan for hostile companions. Decodes real-time battery status bitmasks to issue proactive CR2032 coin cell replacement alerts before lost-item emergencies.
Proactive Anti-Stalking Shield
While stock Android & iOS notifications delay 8 to 24 hours, Tag Seeker analyzes spatial coordinates, traveling velocity, and multi-stop coincidence in under 15 minutes.
An unknown Apple AirTag (Hardware Hash 0x4F9B...E12A) has been spotted alongside your device across 3 sequential waypoints over 34 minutes.
Personal tags registered in your vault suppress alerts while actively decoding battery health bitmasks.
Forensic Export & Teardown Protocol
Never smash a hostile tag with a hammer. Destroying the logic board obliterates serial number telemetry and biometric fingerprints required for criminal stalking prosecution.
Avoid Direct Touch
Handle device only by extreme outer perimeter edge using gloves or plastic sleeve to preserve suspect touch DNA and prints.
Push & Counter-Twist
Depress metal stainless backplate and rotate counter-clockwise 30° until cover disengages. (For Chipolo/Tile: pry battery seam).
Extract CR2032 Cell
Lift coin battery. Seal cell and chassis in separate bags. Record the engraved 12-digit Apple / Samsung serial string.

Generate an immediate, tamper-evident cryptographic dossier including signal attenuation curves, GPS coordinates, and raw BLE advertisement packets to turn directly over to police.
Privacy, Safety & Performance Guarantees
Four non-negotiable engineering principles embedded into every release of Tag Seeker.
Zero-Trust Privacy
100% offline. Zero remote endpoints, zero analytics pings, and complete SQLite database isolation on your device.
Zero Battery Waste
0.0% background drain when closed. Granular scanning switches and auto-halt timers prevent wake-lock battery drainage.
Emergency Safety Lockout
Mandatory ad lockout during active high-confidence stalking alerts or physical disarm guides to preserve user safety.
Non-Intrusive Permissions
Modern Android BLE scanning leveraging the neverForLocation flag. Zero GPS tracking required for raw scanning.
How To Use Tag Seeker
Three streamlined steps from initial perimeter scan to definitive evidence preservation.
Initiate Scan (Quick vs. Live Sweeper)
Choose 15s Quick Scan for hotel rooms or rental cars, or activate continuous Live Active Sweeper mode for a physical walk search.
Track Telemetry (Radar, Geiger, Ring)
Follow concentric Cold > Warm > Hot visual zones with synthetic acoustic clicks and trigger the BLE GATT sounder buzzer to pinpoint hidden tags.
Secure Perimeter (Vault & Police Report)
Register your own tags into the Trusted Vault. If hostile stalking is confirmed, export a court-ready SHA-256 PDF report and follow safe CR2032 disarming.
Tag Seeker vs. Stock OS Detectors
| Feature Specification | Tag Seeker (Android) | Apple 'Tracker Detect' APK | Android Stock Unknown Alerts |
|---|---|---|---|
| Detection Latency | Continuous (< 15 mins) | Manual only (10-min scan) | Cloud-delayed (4-24 hrs) |
| Multi-Brand Coverage | Apple, Samsung, Google, Tile, Generic | Apple AirTag only | AirTag & Google FMD |
| Kalman-Filtered Radar Screen | Yes (Hot / Warm / Cold Zones) | No (Binary List) | No (Notification only) |
| Cloud Dependency / Privacy | Zero Uploads (100% Offline) | Apple ID Telemetry | Google Location Services |
| Override Buzzer Trigger | Instant (GATT Alert + 4.5s Watchdog) | Restricted to 10 min separation | Variable delay |
| Forensic Police PDF Export | Yes (SHA-256 Tamper-Evident) | No | No |
Ready to secure your wireless perimeter?
Tag Seeker will be available soon as a signed standalone APK. Free of trackers, analytics beacons, or Google Play Framework dependencies.