Is this an official JBL app?
No. JBLControl is an independent, open-source project, not affiliated with or endorsed by JBL or Harman. It speaks the same Bluetooth protocol as JBL's own app, building on community research by openjbl.
Why does my Mac or PC warn me about it?
Apple and Microsoft only let apps open without a warning if the developer pays for notarization or code signing. JBLControl is a free hobby project, so it isn't (yet). The warning means the system hasn't checked this build, not that it found anything wrong. All the code is public, and each release lists SHA-256 checksums so you can confirm your download.
Do I still need the JBL Portable app?
Only for firmware updates, PartyBoost and Auracast, which JBLControl doesn't do. Your EQ settings are stored on the speaker, so they apply wherever you play from.
Does Keep Awake drain the battery?
Yes, a little: the speaker stays on instead of switching itself off. It only works while your computer is the speaker's sound output, and the icon turns orange while it's on so you don't forget it.
My speaker isn't listed as verified. Will it work?
Probably for battery and info. For EQ on beta and experimental models, turn on "Allow experimental EQ" in Settings, and please send a device report so it can be verified for everyone.