Voice Synth is a professional live voice processor and music synthesizer played by your voice. With the vast set of integrated tools including Vocoders, Auto Pitch, Harmonizing Pitch Shift and Speed-Shift Sampling, you can

• Sing in Tune like P-Tain & vocoded like Duft-Pank
• Speak with Hollywood-quality Robot voices like 1978 Cylons
• Play by Voice, no fingers needed: scream to play rock guitar, hum a church organ

• Make professional funny voices: animal, evil, weird & much more
• Create unique organic and rhythmic soundscapes
• Sing multiple voices in harmony within any musical scale
• Sample, speed shift and dress up your beatboxing to create the strangest rhythms inspiring new compositions
• Live-pause and stroboscope your voice

• Save and share your creations as presets and audio files
• Use all of the above in your DAW and audio setup via Inter-App Audio (iOS), Audio Units & MIDI

On Voice Synth you will find no conventional ADSR, LFOs or filters. Even the keyboard is optional. Instead, Voice Synth uses the most expressive all-in-one tool you were born with: your voice! It's unique so be ready for a jump in voice creativity, sound design and rhythmic inspiration.

To give you an easy start in this adventure, we included over 250 factory presets! Speak, sing, hum and scream live into the mic, and start exploring the unconventional controls: 24-band vintage analog modeling vocoders, Auto Pitch Tracking, live-voice-pause, speed-shift sampler, multiple voice harmony arranger, spectrum stroboscope, pitch and formant shifter, 24-band equalizer, classic FX as distortion/delay/chorus/reverb, and an extensive vocoder designer with oscilloscope. We included a manual for in-depth use.

Musicians, DJs, sound designers, voice artists: Voice Synth is a must-have in your audio toolbox! Voice Synth is available on the iOS and Mac App Store, and has a dedicated interface designed for iPad/Mac, and a compact interface for iPhone/iPod Touch that includes all features so you can create anywhere you go. Voice Synth Modular provides a free try-out and full functionality via in-app purchases.


• Engine 2x32 bit 44.1 kHz poly x24
• All effects fully integrated, simultaneous, live, realtime, low-latency
• Background audio
• VoiceOver (iOS)
• Manual
• Audio Unit V3, instrument & effect, parameter automation
• Inter-App Audio (iOS), instrument & effect
• Audio routing
• Midi
• Repeater, anti-audio-feedback
• Noise gate manual/auto
• Keyboard 1.5-2.5 oct (midi 10), hold/mono/poly
• Tapes to record/export your performance
• 250+ factory presets, unlimited user presets, import/export

• 4 vintage analog modeling vocoders 24 bands 5th order filters (Natural Robot Breath Designer)
• Auto Pitch, track/fix/double/inverse pitch
• Multiple Voice Harmonizer, any musical scale (choirs, rich 70's vocoder sounds)
• Speed-Shift Sampler ±800%, pause/zoom/loop/hold
• Live-pause & strobo voice
• Pitch Shifter 8 octaves (e.g. lion/gender/child/baby/duck)
• Formant Shifter adapt spectrum ±1 octave (child to giant)
• Registers 4 octaves (add brilliance, chords)
• Arpeggiator pattern/gate/speed/grouping
• Equalizer 24 bands, 10 presets (loudness, low-pass, telecom, etc)
• Autogain/Compressor, Clip/Distortion, Stereo Panning, Delay, Chorus, Reverb
• Slew rate: special vocoder reverb (plucked strings, wind, thunder, storms)
• Mic thru and Vocoder mix to add-in your unprocessed voice (e.g. for beat-boxing)
• Sync rhythmic effect timing

• Realtime oscilloscope
• Sine/square/triangle/sawtooth, adjustable frequency/harmonics/clip/width/skew/slope
• Noise white/voiced, adjustable filter/clipping
• Mix additive/maximum/multiplicative synthesis
• Test mode, design/play without voice

What’s New

Version 5.1.2

Fixes issue with sampler play/pause/stop button on iPhone

Ratings and Reviews

4.3 out of 5
158 Ratings

158 Ratings

Osoberry ,

Fast and friendly support, awesome app

I ran into a couple problems with this app that I couldn't figure out myself, so I emailed support, and they responded with solutions almost immediately. I make a lot of music on iOS with a handful of apps I've paid for; however for every app I like, I've tried a hundred that were a waste of time and money. I have yet to put Voice Synth through its paces thoroughly in the studio, but I have explored it in depth and I can honestly say that, at least for me, it's got a ton of cool possibilities that I can't wait to put to use, and I am glad I purchased it. And big ups to André at Qneo for the helpful and rapid response to my questions!

Joshua D. ,

Please Bring Back Audiobus Support

Please bring back Audiobus support for this app. I never understood why it was removed in the first place? That was always a very poor decision I thought and made this program less useful.

To me, Inter-App-Audio just doesn't cut it and is a pale imitation of Audiobus. It's not as universal either really in my opinion. So, again, I ask that you please bring back Audiobus support, thank you and God bless.

Developer Response ,

Hi Joshua, Voice Synth supports Audio Units, and this works in most DAWs, e.g. Audiobus 3. Thanks, Qneo

PowerObject! ,

Chipmunk preset missing

The famous presets with most voice changers are chipmunk, mouse and helium. But these are missing in the 200+ presets. Please release these presets. Also add these presets to your Voice Express app.

Also make it possible to record voice normally first and then allow us to apply any presets to existing recordings (see Voice Changer Fuvoch app).

I’ll update my rating to 5 stars after these changes.

Developer Response ,

Hi PowerObject, Voice Synth has a fully equiped sampler that imports existing audio files or records your clean, unaltered voice. When you play a sample, Voice Synth applies its effect live on it. If you clear all effects (PRESETS panel, tap NEW/IMP), you will hear the sample as it is, unaltered. If you have selected any other preset or turned on any effect, you will hear the sample transformed. About the presets, Voice Synth in fact has a mouse preset, it is called "ANIMAL MOUSE". For chipmunk and helium, well, you only have to turn the pitch wheel. Or the formant slider. But you are right, they are not literally in the presets. We'll take it with us for future updates! If you need more assistance or have more remarks, please update your review, or contact us direct at Thanks, Qneo


74.3 MB

Requires iOS 10.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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