
Free
About
Your voice. Amplified.
SpeakBig turns your iPhone into a wireless microphone for any Bluetooth speaker. Speak naturally, reach the back of the room, and be heard without shouting or buying a PA system.
HOW IT WORKS
1. Connect your iPhone to a Bluetooth speaker.
2. Open SpeakBig and tap TALK.
3. Speak into your iPhone and your voice plays live through the speaker.
BUILT FOR THE HUMAN VOICE
• Adjustable boost: up to +24 dB of gain with a simple slider.
• Voice clarity EQ: trims low-end rumble and lifts the presence range so speech cuts through.
• Built-in limiter: keeps loud moments clean instead of distorted.
• Feedback guard: detects the sustained tone of feedback and lowers the boost automatically.
• Safety stop: if your speaker disconnects, SpeakBig stops instantly instead of blasting through your phone.
• Device info at a glance: see your connected speaker, connection type and estimated delay.
• Pick your speaker without leaving the app.
• Keeps working with the screen locked.
PERFECT FOR
• Teachers and classrooms
• Tour guides and group leaders
• Sports coaches and fitness instructors
• Presenters and public speakers
• Church, clubs and community groups
• Outdoor events and gatherings
PRIVATE BY DESIGN
Everything happens on your iPhone. SpeakBig works without an internet connection, never records your voice, and collects no data.
GOOD TO KNOW
• Requires a Bluetooth speaker (wired and USB audio outputs also work).
• Bluetooth adds a small audio delay that varies by speaker.
• For the clearest sound, hold your iPhone a few feet from the speaker and point the mic away from it.
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+1
What's New in SpeakBig
1.0
November 2, 2026



