SpikeRecorder 1.9.20 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. SpikeRecorder for Mac is included in Education Tools. This free Mac app is an intellectual property of Backyard Brains Inc.
From the developer:
SpikeRecorder allows you to view, hear, record, and analyze neural signals, both from individual neurons and muscles. By following a few simple steps, everyone can experience first-hand how the brain communicates with our senses, memories, hopes, and desires.
You may want to check out more Mac applications, such as Gee, Arcade Math Blocks or NLVM, which might be related to SpikeRecorder.