FreqCheck™

Watch what's happening above. The first video shows FreqCheck™ at rest—meters at zero, no waveform visible at all. The display is clean and silent because there is simply nothing to detect. No false signals, no noise, no guesswork. Now look at the second video. A screen recording of a 40 Hz tone generator website was saved as a video, then imported directly into FreqCheck™. The instant the app encounters that audio, the waveform explodes onto the screen—extremely reactive, tightly tracking every pulse of that verified 40 Hz signal while the precision meters snap to an exact lock. From dead silence to pinpoint detection, just like that.

FreqCheck™ places a laboratory-grade frequency and brainwave band analyzer directly onto your iOS device. This completely eliminates the need for expensive external hardware, allowing you to instantly visualize and measure any acoustic or electrical signal from 1–100 Hz in real time. A high-resolution waveform transforms complex spectral data into a dynamic, unconstrained visualization of raw energy—turning precision meters and invisible frequencies into something you can instantly see, understand, and prove.

The invisible world becomes effortlessly visible and completely understandable in your hands.

FreqCheck™ operates via three dedicated input modes—Video, Audio, and Live microphone—each activated with a single tap. This means “NO” configuration! Delivering immediate spectral extraction from virtually any digital media file or environmental source. Ready to measure, see, and understand the sound around you? Download FreqCheck™ now, and gain the certainty you deserve in acoustic analysis!

You secure verified answers before your next playlist even loads.

Every detection is mathematically validated and cryptographically sealed into a tamper-evident audit report. This ensures your captured data carries the exact documented weight as results produced inside a controlled laboratory environment. The videos above demonstrate this certainty in action: an idle state with nothing on screen, followed by instantaneous, precise detection of a verified 40 Hz tone and the exported pdf report from the log files.

Your acoustic analysis is backed by indisputable, exportable proof.

The proprietary IND CORE™ engine measures exactly what is physically present in the signal across Delta, Theta, Alpha, Beta, and Gamma bands, independently of subjective human perception. This separates unverified wellness marketing claims from acoustic reality, providing a perfectly calibrated reflection of the true frequency.

Absolute certainty replaces published claims.

The internet is flooded with "healing" audio claiming to contain specific brainwave frequencies. Most people just trust the label. FreqCheck™ measures the exact physical frequencies actually coming out of your speaker across the Delta, Theta, Alpha, Beta, and Gamma bands. By actively auditing the signal, it separates real sound engineering from empty placebo tracks. You don't need an acoustics degree to use it—just play the audio, look at the screen, and instantly see if you are getting what you were promised.

Absolute certainty replaces blind trust.

Millions of people worldwide report hearing persistent, sleep-disrupting low-frequency hums that standard decibel meters simply cannot register. FreqCheck™ actively detects infrasonic acoustic energy down to 1 Hz, reaching far below the threshold of human hearing. You don't need external equipment to start—just open the app, tap Live, and let the IND™ engine scan the room. If a deep, vibrating atmospheric anomaly or hidden industrial hum is affecting your home, you capture the raw data in real time, generating the exact documentation needed to prove the noise is real.

You possess the undeniable proof to validate your experience.

While the internal microphone is perfect for immediate, everyday analysis, FreqCheck™ seamlessly scales for advanced technical applications. The platform supports external USB-C microphones, specialized hydrophones, and direct electrical injection via DC-coupled audio interfaces. This bypasses standard consumer hardware filtering entirely, granting professional researchers, acoustic engineers, and industrial inspectors flawless signal capture down to 0.5 Hz.

Your analytical capability scales perfectly with your professional needs.

FreqCheck™ is not making a general claim of accuracy — it is backed by independent, accredited verification.

• IND™ Core v4.0 Engine — Proprietary detection logic built for infrasonic and low-frequency analysis.
• ISO/IEC 17025:2017 Calibration — Verified by Florida Standards Laboratory to government testing benchmarks.
• NIST Traceable — Tested against SI units maintained by the National Institute of Standards and Technology.
• Certificate #05122C9A 2602 — Documented proof of your metrological authority.

When you read a frequency on FreqCheck™, it is not an approximation. It is a certified measurement held to the highest standard of international metrology.

You command the highest standard of global measurement directly from your device.

FreqCheck™ — See what you are listening to.