Works with Hero4, but still some rough edges

Ignore the negative review of old versions, this works as advertised with a new Hero4 (silver) with Yosemite (10.10.1). Make sure you change the local IP after joining the GoPro network if you want to see the preview, and I had to quit and restart the app after the first pairing setup to get everything working right. For example, right after pairing I could start a recording, but couldn’t stop it! After restarting the app everything seemed to work properly. Warning: all the settings for the camera are sensitive to scrolling (trackpad or mouse), so if the cursor wanders 1cm from the main scrollbar to a setting, you will accidentally change camera settings (no confirmation required.) This happened to me so many times I became totally paranoid whenever having the cursor anywhere near the camera control panel.

Bottom line: this was definitely worth the few $$ rather than wait for GoPro to port their own app to MacOS. Pity he bundles the media browser functions separately, ‘tho.

Neandertool about Camera Control for GoPro