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Arlej Tech — Control before it happens.

I’m a solo developer working at the intersection of mathematics, physics, engineering, and biometric data. My principle is simple: data is the only proof—not intuition or assumption, but measured signals and verifiable output.

Praenox is my current project: biometric sound synthesis that turns HRV, resting heart rate, sleep architecture, stress, recovery, and personal trends into adaptive soundscapes.

This is not generic ambient audio. Praenox responds to what your body is actually reporting.

Praenox is available in four editions:

Praenox Free — Windows

The core biometric sound engine, available without a license.

Praenox Pro — Windows

$29 one-time, lifetime license. Adds the Fusion prediction engine, Sleep Debt Gate, Stability Mode, Outcome Learning, HRV velocity tracking, and the complete progression system.

Praenox Developer — Windows

$59 one-time, lifetime license. Includes everything in Pro plus the complete testing, simulation, diagnostics, verification, and development-event suite.

Praenox Aurum — Android

$79.99 one-time, lifetime license. The complete mobile Praenox experience, including adaptive synthesis, background playback, personal context check-ins, seven-day recovery outlooks, pattern analysis, sleep planning, outcome learning, profile portability, and built-in verification tools.

Aurum is distributed directly as an APK and is not currently available through Google Play.

→ Arlej Tech

→ Praenox

Your support goes directly into continued development. There is no team, outside funding, or corporate layer—just one person building, testing, measuring, and improving something that did not exist before.

Thank you for being here early.

— Arlej