
MARS Mobile Reference Speaker
Hear your mix on a phone
0 ratings
Free
About
Your mix will end up on a phone. Check it on a phone.
MARS (Mobile Audio Reference Speaker) plays your mix live on the built-in speaker of your iPhone or iPad, so you hear it where most people will: a small speaker, little low end, phone loudness. No exporting, no sending files to yourself.
HOW IT WORKS
MARS Connect, a free menu bar app for the Mac, adds a MARS audio output. Send your DAW, or any app, to MARS: the sound plays on the iPhone or iPad connected with a USB cable. Sessions at 44.1, 48, 88.2 or 96 kHz reach the device as 48 kHz stereo. MARS Connect starts at login and connects by itself when MARS is open on the device.
Get MARS Connect for Mac: https://www.marcoaugustocomba.com/mars/#mac
MADE FOR THE STUDIO
• Stereo level meter in dB, with peak hold
• MUTE for the device speaker only, while the meter keeps moving
• Level is the system volume, the same control as the volume buttons. MARS keeps its own gain at unity, so samples reach the speaker unchanged
• Dark, hardware-style screen that stays on while the Mac is connected
• iPhone in landscape; iPad in every orientation, in Split View and Slide Over
• Keeps playing with the screen locked or another app in front
SPEAKER ONLY
MARS plays only on the built-in speaker. With headphones, Bluetooth or AirPlay connected it refuses and tells you why, so you always know what you are hearing.
WHAT YOU NEED
• iPhone or iPad with iOS or iPadOS 16 or later
• A Mac with macOS 13 or later (Apple silicon or Intel) and MARS Connect
• A USB data cable between the Mac and the device
PRIVATE BY DESIGN
MARS makes no internet connections and collects no data. Audio plays live and is never recorded, stored or sent anywhere. Preferences → Send feedback opens an email with your device details already filled in, which you can read and edit before sending.
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What's New in MARS Mobile Reference Speaker
1.0
November 7, 2026


