Your frequencies. Your sessions. No black boxes.

FreqCraft is a precision audio engineering tool for brainwave entrainment exploration. Up to five simultaneous voices, each with its own carrier, beat, waveform and level envelope. Every Hz value visible. Every parameter yours to edit. It plays silently alongside any other audio, with no interruptions.

FreqCraft — Precision Hz. Nothing hidden. Nothing tracked.

Get it on Google Play→

One-time purchase · No subscription · No ads · No tracking

Came from Brainwave Generator? See the migration →

5Simultaneous Voices

4Waveform Types

2Tone Modes

∞Saved Presets

1One-Time Purchase

0Data Collected

Why it beats the black boxes

Transparency

Every Hz. Always visible. No presets you can’t inspect. No frequencies you can’t verify. Full parameter access on every session.

Privacy

Zero data collection. No account. No analytics. No network permission. Your sessions live on your device and nowhere else.

Control

One-time purchase. No subscription. No ads. No paywalled features. Buy it once, own it completely.

Integration

True background mixing. Runs silently over Spotify, podcasts, or audiobooks without pausing or interrupting them.

What layering sounds like

A binaural voice straddles its carrier: the left ear gets half the beat below it, the right ear half above. The two ears never hear the beat itself, only the two tones, and the beat appears where they meet. Stack five voices and the session has a texture no single tone can produce: the thing Brainwave Generator users came for, rebuilt with every value on screen.

Carrier 200.000 Hz · beat 7.830 Hz → L 196.085 Hz / R 203.915 Hz

The actual app · unretouched

Five voices in one session, at 1.957, 3.915, 7.83, 15.66 and 23.49 Hz, with the scope drawing every one. — Five voices, one session

Voice 3 selected, showing its own carrier, beat, waveform and level envelope. — Every voice tuned on its own

Four real waveforms: sine, square, triangle and sawtooth. — Four real waveforms

Session timer with fade in and fade out. — Timer, fade in, fade out

Same shots that ship on the Play listing · scroll for more

FreqCraft Studio: the full desktop workstation is being built.

Unlimited voices, timed session sequencing, ambient noise and background layers, waveform harmonic filtering, .wav export, and community preset libraries: the rest of what Brainwave Generator offered, rebuilt for modern hardware.

Where the numbers come from

FreqCraft’s factory presets are drawn from the Brainwave/Cymatic Frequency Listing compiled by Michael Triggs, the most comprehensive frequency reference used across the entrainment community. We cite our sources because this field has real depth, and you deserve to explore it yourself. There is also an open protocol for testing auditory entrainment against your own EEG, free, with a stated null result. And the story of why this exists.