The Only Three Axes That Matter
First, the delivery route: through the skin as current, through the air as a magnetic field, or through the ears as sound. These are not variations on a theme, they are different physical events.
Second, who selects the frequencies: you, an open-source list, or someone who does it professionally. This is where most of the difference in outcome lives.
Third, whether the selection adapts during the session or is fixed before it starts. Healy analyses and adjusts every 10 seconds; most alternatives run a fixed sequence from beginning to end.
Healy Compared to Spooky2 and Rife Generators
Spooky2 is a generator and software platform. You buy a base device, then run open-source frequency lists you find or build yourself, assembling the protocol and tuning the run.
Spooky2 wins on control. If researching and operating your own frequency stack is something you enjoy, nothing curated will satisfy you. The cost is time, and it is a real cost, because the platform assumes you want to become the practitioner.
Healy is the inverse. The device is closed and the programs are curated, so there is less raw flexibility, but the path from a goal to a running session is short and requires no expertise from you.
Healy Compared to PEMF Devices
PEMF mats and coils deliver a pulsed magnetic field through the whole body. There are no electrodes and no placement decisions, which makes them the least demanding option here.
PEMF wins on coverage and simplicity. It is also the least specific: you cannot aim it, and the programs do not adapt to you during a session.
Healy Compared to Audio Frequencies
Tracks at 432 Hz, binaural beats and subliminal audio deliver sound through the ears. Healy delivers microcurrent through skin contact. These are different mechanisms, not two versions of the same one.
Audio wins on access, because it costs nothing and works through headphones. People who have plateaued on audio are usually looking for a different mechanism rather than a louder one.
What We Cannot Tell You
There is no head-to-head trial comparing these devices against each other. Anyone presenting one is presenting marketing. What is above is a comparison of how the machines work, which is a question that can be answered honestly.