Device Intelligence Engine — Privacy-First Mobile Security for Android
VARYNX is a 100% offline security engine that protects your Android device without sending a single byte to the cloud. No telemetry, no analytics, no tracking — your data never leaves your device.
- Zero Cloud Dependency — All threat detection runs locally on your device
- No Data Collection — We don't collect, transmit, or sell your data
- Transparent Security — Clear explanations of what we detect and why
- User Control — You decide what to monitor and when
A background service continuously monitors your device across 10 security modules with a 10-minute wall-clock-aligned cadence (~144 scans/day). Runs in a process-lifetime coroutine scope that survives app exit, screen off, and service recreation.
- Wi-Fi Security — Detects open networks, weak encryption, rogue access points
- Bluetooth Scanner — Proximity skimmer detection via BLE signal analysis
- NFC Monitor — Tap detection and secure element integrity checks
- Proximity Alert — Identifies suspicious nearby wireless devices
- Clipboard Guard — Monitors for sensitive data exposure (passwords, keys, seeds)
- CryptoShield — Detects crypto drainer apps, clipboard hijacking, fake wallet QR codes
- QR Scanner — Camera-based QR code scanning with threat analysis (ML Kit + ZXing dual decoder)
- Device State — Root detection, VPN status, developer mode, USB debugging checks
- SMS Analysis — Scans recent messages for phishing links, URL shorteners, and scam keyword clusters
- Call Log Monitor — Detects repeated unknown callers, rapid-fire call bursts, short-duration robocall probes, and SMS→call bait sequences
- Call Screening — System-level call screening service flags burst activity in real time
- Analyzes installed apps for risky permission combinations
- Flags apps with dangerous access patterns
- Unified security score (0–100) with color-coded severity
- Expandable category tiles — Network, Device, and Guardian
- Real-time permission status with Fix Now action
- One-tap full system scan
- Configurable sensitivity levels (Relaxed / Moderate / Strict)
- Severity-based categorization (OK / Warning / Alert / Critical)
- Acknowledgement workflows
- All scan history stored in encrypted local database
- Export capability (user-initiated only)
- Automatic rotation and retention
- Per-engine enable/disable toggles
- Protection mode presets
- Data export and clear controls
- Reset to defaults
┌─────────────────────────────────────┐
│ Security Dashboard │
│ Score · Tiles · Permissions │
└──────────────┬──────────────────────┘
│
┌──────────────▼──────────────────────┐
│ Guardian Engine │
│ Background service (START_STICKY) │
│ 10-min wall-clock aligned cadence │
└──────────────┬──────────────────────┘
│
┌──────────────▼──────────────────────┐
│ Threat Engine │
│ Orchestrates 10 security modules │
│ Scoring · Timeout · Logging │
└──────────────┬──────────────────────┘
│
┌──────────────▼──────────────────────┐
│ Guardian Modules (10) │
├─────────────────────────────────────┤
│ WiFi · Bluetooth · NFC · Proximity │
│ Clipboard · CryptoShield · QR │
│ DeviceState · Permissions · Scam │
└─────────────────────────────────────┘
- Modular — Each engine is an independent Gradle module
- Offline-only — Zero network calls, zero cloud dependencies
- Battery-aware — Adapts BLE scan behavior based on battery level
- Wall-clock anchored — Scans fire at :00, :10, :20… regardless of scan duration
- Secure storage — Encrypted DataStore + Room database for logs
- Android 13+ (API 33)
- No internet required — Works completely offline
- Permissions: Requested at runtime with clear explanations
VARYNX collects zero user data:
- No analytics
- No crash reporting to external services
- No advertising identifiers
- No location tracking
- No network requests
All security data stays on your device. Export is only available through explicit user action.
See PRIVACY.md for the full privacy policy.
| Layer | Technology |
|---|---|
| Language | Kotlin |
| UI | View System (XML + ViewBinding) + Jetpack Compose |
| Background | Service (START_STICKY) + Coroutines |
| Storage | DataStore (encrypted) + Room |
| Camera | CameraX + ML Kit + ZXing |
| Build | Gradle 8.11 · AGP 8.7.0 · Kotlin 2.0.21 |
| Min SDK | 33 (Android 13) |
| Target SDK | 35 (Android 15) |
- 10 active security modules
- Background guardian with adaptive scheduling
- Encrypted audit logging
- Full offline operation
- Play Store ready
- Unified threat intelligence engine
- Advanced behavioral analysis
- Enhanced UI/UX
- Expanded device coverage
195 unit tests across 4 modules, all passing.
# Run the full suite
python3 varynx_dev.py test all --full --stress --audit
# Individual suites
python3 varynx_dev.py test guardian # Guardian core + looper
python3 varynx_dev.py test threat # Threat engine + concurrency
python3 varynx_dev.py test scam # Scam pattern detection
python3 varynx_dev.py test qr # QR scanner classification
python3 varynx_dev.py test ui # Dashboard state logic
python3 varynx_dev.py test stress # 100-scan loops, rapid cycling
python3 varynx_dev.py test audit # Structural invariant checks| Module | Tests | Coverage |
|---|---|---|
| engine-threat | 85 | Guardian core, threat engine, concurrency, failures, stress, audit |
| engine-scam | 47 | Pattern matching, keyword escalation, burst math, bait sequences |
| engine-qrscanner | 30 | URL classification, dangerous patterns, trusted domains |
| app | 33 | Dashboard state, score levels, protection status, tile expansion |
Found a vulnerability? Please report it responsibly.
See SECURITY.md for our security policy and reporting process.
We welcome bug reports and feature requests! See CONTRIBUTING.md for guidelines.
Please follow our Code of Conduct in all interactions.
Copyright © 2026 VARYNX. All rights reserved.
This software is proprietary. See LICENSE for details.
Version 1.9.3 — Latest Release
- 10 active security engines
- Background guardian with 10-min wall-clock cadence
- 195 unit tests with unified test runner
- Encrypted audit logging
- Fully offline operation
- Play Store compliant
- Email: varynx.contact@gmail.com
- Issues: GitHub Issues
- Security: SECURITY.md
I didn't build VARYNX because I wanted to make another app. I built it because I lived through the exact problems this project now solves.
For years, I saw people get targeted — myself included — by scams, fake apps, social engineering, and the kind of digital manipulation that preys on normal families who just want to use their phones safely. I saw how easy it was for a device to become a doorway for stress, fear, and financial damage. And I saw how most "security apps" weren't built for real people — they were built for data collection, cloud dependency, or marketing.
Nothing existed that was simple, offline, private, and built for adults who just want their phone to be safe without being tracked.
So I built it myself.
VARYNX started as a personal tool — a way to protect my own family. But the more I built, the more I realized the gap in the market: there was no offline guardian that stayed on the device, respected privacy, and actually helped people understand what was happening on their phone.
I'm not a corporation. I'm a founder, a parent, and the sole provider for my family. I built VARYNX at night, after work, through setbacks, rebuilds, and months of discipline. Every module, every detector, every decision was shaped by one mission:
Give people real protection without taking anything from them.
VARYNX Version 1 is the foundation — a stable, offline guardian that proves the architecture works. It's the version that creates trust, earns traction, and opens the door for partnerships.
Version 2 will be the evolution — a unified engine built to be unstoppable, massively capable, and far beyond anything V1 can do. But V2 only exists because V1 is real, stable, and built with intention.
This project is not a trend, not a clone, and not a shortcut. It's the result of lived experience, real problems, and a commitment to building something that actually protects people.
VARYNX exists because it needed to. And it will keep growing because the mission is real.
— Corey, Founder of VARYNX
Your security. Your device. Your data.
