Alexa Audio Butler
Automatically mix and master audio for videos.
At a glance
Starts at
from $159 per license
Includes one year of free updates; perpetual licenses available for lifetime access.
Free tier
Free trial only
Platforms
Windows, macOS
Best for
Video editors, content creators
Not for
Advanced audio engineers
3.9 out of 5
Scored by a Toolio reviewer after real useOur verdict
End Boost simplifies video audio mixing but lacks advanced customization options for professionals.
✓What it does well
Automatic MixingApplies custom volume curves, compression and ducking automatically.
Wide CompatibilitySupports multiple NLEs like Premiere Pro, DaVinci Resolve, Final Cut Pro X.
Easy to UseNo audio skills needed; choose from presets for quick results.
✕Where it falls short
Limited CustomizationDoes not offer deep customization options like manual EQ settings.
Steep Learning CurveAdvanced users might find it lacks the depth they need for fine-tuning mixes.
Extra CostsAdditional subscription needed beyond the initial purchase for ongoing updates and features.
Key features
Preset CombosIncludes over 25 presets for different audio combinations.
AI De-noising & MasteringClean up recordings and create the perfect mix using AI algorithms.
Multi-Track SupportCan handle mixing of voice, music, and sound effects tracks together.
Unlimited Audio TracksSupports mixing an unlimited number of audio tracks.