Voice Synth

Voice Synth

Live Auto Pitch Vocoder

335 ratings
233 reviews
$8.99

Price history


Details

Released
January 4, 2012
Updated
January 8, 2026

Features

Voice Synth screenshot #1 for iPhone
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About

Transform your voice live with a professional audio processor and music synthesizer. Create robotic voices, harmonies, and unique soundscapes using only your voice as an instrument. Save and share your creations, or integrate them into your existing audio setup.

✓Live voice processing
✓Auto Pitch and Harmonizing
✓Vocoder effects
✓Speed-Shift Sampling
✓Soundscape creation
✓Audio Unit V3 integration
✓Save and share presets
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What users say about Voice Synth

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What's New in Voice Synth

5.2.9

January 8, 2026

Minor bug fix

User reviews

Auto-pitch

All it needs is to have to auto pitch work live as your recording

Awesome!

The voice quality is amazing!

Odd knobs movement

I LOVE this app since IAA, but could you please please please fix this absolutely terrible knob movement???

Important! This app is kind of unusable! User do not purchase and waste your money

Review: Voice Synth (iOS App)

I was excited to try Voice Synth because the concept is interesting, but unfortunately the app is practically unusable with modern iPhones. The app seems to rely on using wired headphones with a microphone, which older iPhones supported through the built-in headphone jack. However, most current iPhones no longer include a headphone jack, and the app doesn’t appear to be designed to work properly with wireless Bluetooth headphones or other modern audio devices.

Because of this limitation, many users simply won’t be able to use the app the way it was intended. Unless you have specific wired hardware or adapters that work with it, the core functionality becomes extremely difficult—or impossible—to access. For an app that relies so heavily on audio input and monitoring, not supporting common wireless audio options is a major drawback.

In its current state, the app feels outdated and not compatible with the way people actually use iPhones today. Updating the app to properly support Bluetooth headphones and modern audio routing would make a huge difference. I would also give it five stars.
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This is a toy at best!

There’s no provision to connect the app to whatever audio interface you’re using and use a higher quality mic…only a Bluetooth or iPad mic??? The same with midi….bluetooth only. Apparently this app is more for consumer tinkers

Developer apps

User experience

🐞

Reported Bugs

3 issues

Crashes and freezes

Bug

Audio sync issues

Bug

Unreliable live recording

Bug
✨

Requested Features

4 requests

Audiobus support

Feature

Longer recording duration

Feature

More preset options

Feature

Improved user interface and workflow

Feature

FAQ

What does Voice Synth do?

Voice Synth is a professional live voice processor and music synthesizer. It allows you to transform your voice in real-time using tools like vocoders, auto-pitch, and harmonizing pitch shifts, enabling you to create robotic voices, harmonies, and unique soundscapes.

What are the key features of Voice Synth?

Key features include live voice processing with vocoders and auto-pitch, harmonizing pitch shifts, speed-shift sampling for rhythmic creation, the ability to create professional funny voices, and integration with DAWs via Audio Units and MIDI.

How much does Voice Synth cost?

Based on the provided information, Voice Synth is a paid application. There are no mentions of free trials, subscriptions, or in-app purchases for core functionality.

What are some common use cases for Voice Synth?

Users can sing in tune, create Hollywood-quality robot voices, play instruments with their voice, make funny animal or evil voices, create organic soundscapes, and sing multiple voices in harmony. It's also useful for sampling and manipulating beats for new compositions.

Is Voice Synth compatible with other music software?

Yes, Voice Synth is designed for integration with other audio setups. It supports Audio Unit V3 as an instrument and effect, allowing for parameter automation, and also supports MIDI for external control.