Hemi-Sync: broad meditation and consciousness catalog
Hemi-Sync, originally founded by Robert Monroe, offers a large catalog of guided and unguided audio using its own audio-guidance approach. Its site currently offers meditation products, a subscription and the Gateway Experience. It is a closer conceptual comparison to Holosync than a productivity soundtrack app.
Brain.fm: functional music with a focus emphasis
Brain.fm positions itself around functional music for focus, with additional sleep, relaxation and meditation modes. It says its technology is not binaural beats and points to peer-reviewed research on its science page. This makes it a different fit from Holosync’s structured multi-month meditation program.
Traditional or app-guided meditation
If your main goal is learning meditation, you do not necessarily need specialized brainwave audio. Breath awareness, body scans, mindfulness instruction and guided meditation can all be practiced without buying a neuro-audio system.
Free binaural-beat audio
Free audio can be useful for exploring whether you enjoy the sound format. The trade-off is that free tracks usually do not reproduce Holosync’s specific program structure, support or proprietary production.