Comparison

Voice Synth Modular vs Synth Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Voice Synth Modular

Transform your voice into a musical instrument with a suite of advanced audio effects. Create robotic voices, harmonies, and unique soundscapes using only your voice. Save and share your creations, or integrate them into your digital audio workstation.

Highlights
  • Live voice processing
  • Vocoders
  • Auto Pitch
  • Harmonizing Pitch Shift
  • Speed-Shift Sampling
  • Create organic soundscapes
  • Save and share creations
Features
Read full description

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 Audio Units & MIDI This "Modular" version of Voice Synth offers a free unlimited-time tryout of all effects on prerecorded samples, while all other functions are unlocked by a single In-App-Purchase. 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! Qneo voicesynth.com TECHNICAL SPECS • Engine 2x32 bit 44.1 kHz poly x24 • All effects fully integrated, simultaneous, live, realtime, low-latency • Background audio (iOS) • Manual • Audio Unit V3, instrument & effect, parameter automation • 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 INTEGRATED EFFECTS • 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 DESIGNER VOCODER • 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

About

Synth Pro

Explore authentic analog synth sounds and craft unique music with a powerful editing suite. This app offers studio-quality effects, layering capabilities, and MIDI/AUv3 support for both beginners and professionals. Save, share, and record your creations.

Highlights
  • Authentic analog & vintage synth sounds
  • Full synthesizer editing section
  • Professional-grade effects
  • Layer & split sounds
  • MIDI & AUv3 support
  • Save, share, & record creations
Features
Read full description

Unleash the Power of Vintage Synths with Synth Pro Dive into the world of rich, analog sounds with Synth Pro, the ultimate synthesizer app designed for musicians, producers, and sound designers. Whether you're looking to recreate vintage classics or craft new, unique sounds, Synth Pro delivers an expansive library of iconic analog synths, powerful editing tools, and studio-quality effects—right from your iOS device. From the deep, warm tones of analog oscillators to the versatility of modern sound design, Synth Pro is perfect for both beginners and pros alike. Key Features: • Explore Authentic Analog & Vintage Synth Sounds: Experience the authentic warmth and depth of analog synthesis. Synth Pro features a curated library of classic synth sounds inspired by legendary hardware—Moog, Juno, Prophet, and more. Perfect for recreating retro vibes or exploring new sonic landscapes. • Full Synthesizer Editing Section: Take complete control of your sound with our powerful built-in synthesizer editor. Adjust oscillators, filters, LFOs, envelopes, and modulation for precise sound shaping. Whether you’re tweaking existing presets or designing from scratch, Synth Pro gives you the creative freedom to craft your ideal sound. • Professional-Grade Effects: Enhance your sounds with studio-quality effects like reverb, delay, chorus, phaser, distortion, and more. Add depth, texture, and polish to your music with ease. Perfect for live performances or studio sessions. • Layer & Split Sounds: Combine multiple synths or split them across the keyboard for complex, layered compositions. Ideal for live performances or creating rich, multi-textured tracks in the studio. • MIDI & AUv3 Support: Connect your MIDI keyboard or controller for full hands-on control over your sounds. Use Synth Pro as a powerful plugin in your favorite AUv3-compatible DAWs for seamless integration into your production workflow. • Vintage Meets Modern: Synth Pro blends the timeless beauty of analog with the flexibility of digital. Enjoy the best of both worlds with a modern interface designed for intuitive sound creation, whether you're after retro nostalgia or cutting-edge new sounds. • Save, Share, & Record: Save your favorite custom sounds and presets for future projects. Record your live performances or studio sessions with ease, and share your creations with the world or back them up to the cloud. Go Premium: Upgrade to unlock the full potential of Synth Pro. Get access to an expanded library of exclusive synths, more advanced editing tools, and additional effects. Perfect for pro-level musicians and sound designers who want unlimited creative possibilities. Subscription Plans: • 1 Month: $5.99 • 1 Year: $29.99 Prices may vary based on region. • Payment will be charged to your iTunes Account upon purchase confirmation. • Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. • Manage subscriptions and auto-renewal in your Account Settings. Why Synth Pro? Whether you’re performing live, producing in the studio, or exploring new creative ideas, Synth Pro delivers the rich analog sound and flexibility you need. From vintage recreations to modern experimental sounds, Synth Pro is your all-in-one synthesizer solution. Download Synth Pro today and start creating with the best analog and vintage synth sounds on iOS! Terms of Service: https://taqs.im/terms Privacy Policy: https://taqs.im/privacy Got feedback or questions? Reach us at contact@taqs.im!

Screenshots

Voice Synth Modular4 screens
Synth Pro3 screens

Verdict

The call

The clearest difference is ads: Voice Synth Modular at none against Synth Pro's shown. Voice Synth Modular also leads on ratings volume (3.1K vs 555) and iOS requirement (16.6 vs 18.0). Synth Pro's advantage is review sentiment (71% vs 41%) and rating (4.6 vs 4.2). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Voice Synth Modular sells 2 one-off in-app purchases and Synth Pro sells 20 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Synth Pro holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Voice Synth Modular has 3.1K ratings behind it against 555, so its average is the more settled of the two. Written reviews point the same way: 41% of Voice Synth Modular's written reviews are positive against 71% of Synth Pro's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Voice Synth Modular versus Synth Pro: the parameters behind the verdict, then further details
ParameterVoice Synth ModularSynth Pro
PriceFreeFree
Rating4.2 (3.1K ratings)4.6 (555 ratings) — better
Positive reviews41.3% of reviews70.6% of reviews — better
Number of ratings3.1K — better555
Update frequencyMonthlyMonthly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.6 — better18.0
Further details — not scored
Size66 MB89 MB
Age rating4+4+
DeveloperQneoTAQS.IM

Customer experience

Voice Synth Modular

All ratings3,044 ratings
Positive79.2%
Neutral5.1%
Negative15.7%
Written reviews310 reviews
Positive41.3%
Neutral5.8%
Negative52.9%

Synth Pro

All ratings554 ratings
Positive89.2%
Neutral5.1%
Negative5.8%
Written reviews17 reviews
Positive70.6%
Neutral11.8%
Negative17.6%

User reviews

Voice Synth Modular

From 3.1K App Store ratings

What we love

  • 🔥 Powerful voice modulation
  • 🎨 Huge array of filters and sounds
  • 🎹 Ability to create beats from voice
  • 🎶 Excellent for vocal performances
  • 👍 Intuitive and user-friendly interface

Room to improve

  • 💰 Paid features hidden behind paywall
  • 🔒 Confusing upgrade process
  • 🐛 Unreliable recording and playback
  • 🤔 Unintuitive workflow and lack of guidance
  • 🤷‍♀️ Inconsistent functionality across updates

Synth Pro

From 555 App Store ratings

What we love

  • 🎶 Great for making music
  • 🎵 Inspiring and authentic sounds
  • 💡 Unique sonic textures
  • 👍 Good for FNF songs
  • 🌟 Free sounds are valuable

Room to improve

  • 🔋 Drains phone battery significantly
  • 🐛 Audio lags and glitches in GarageBand
  • 💥 Crashes in GarageBand
  • 🚫 Not recognized in GarageBand sometimes
  • 🔊 No sound output

Bugs and requests

Voice Synth Modular

Reported bugs

4 issues
  • Crashes and freezes when using certain features
  • Microphone not detected or working properly
  • Imported audio files not playing back correctly
  • Presets and settings not saving or loading properly

Requested features

5 requests
  • Ability to record and process own voice
  • Deeper integration with music production apps
  • More customization and preset options
  • Better documentation and tutorials
  • System audio capture and processing

Synth Pro

Reported bugs

6 issues
  • Audio lags and glitches in GarageBand
  • Phone battery drain
  • GarageBand crashes
  • App not recognized in GarageBand
  • No sound output
Show 1 more
  • VST preset saving/loading issues

Requested features

2 requests
  • Merge duplicate sound banks
  • Fix GarageBand integration issues

In-app purchases

2 purchases

Voice Synth Modular

One-time2
  • Pro ToolsFree
  • Upgrade$8.99
20 purchases

Synth Pro

Subscriptions3
  • TAQS.IM Monthly PRO Access$5.991 Month
  • TAQS.IM Yearly Premium Access7 Days trial$19.991 Year
  • TAQS.IM Yearly PRO Access7 Days trial$29.991 Year
One-time17
  • CZ-101 PS Essentials$2.99
  • DW8PS Digital Analog$2.99
  • DXSevn Legend$2.99
Show 14 more
  • JNO-106 I$2.99
  • Ethereal Voices$2.99
  • Pad Sounds$2.99
  • Synth Strings & Brass$2.99
  • Synths$2.99
  • Hafla Synth$2.99
  • MOSS Leads$2.99
  • Vintage Analog Synth Leads$2.99
  • Oriental Throwback$2.99
  • Synth Bass$2.99
  • Casio CZ101 Mono Synth Leads$2.99
  • JNO-106 II$2.99
  • TAQSIM Synth Pro Lifetime$19.99
  • TAQSIM Synth Pro Lifetime$29.99

Questions

Is Voice Synth Modular free?
Voice Synth Modular is free to download, with in-app purchases available.
Is Synth Pro free?
Synth Pro is free to download, with in-app purchases available.
Which has better reviews, Voice Synth Modular or Synth Pro?
Synth Pro is rated higher. Voice Synth Modular averages 4.2 out of 5 from 3.1K ratings, while Synth Pro averages 4.6 from 555 ratings.
Do Voice Synth Modular or Synth Pro have ads?
Synth Pro shows ads; Voice Synth Modular does not.
Which is updated more often, Voice Synth Modular or Synth Pro?
Voice Synth Modular ships an update monthly, and Synth Pro monthly. Most recently, Voice Synth Modular was updated on October 29, 2026 and Synth Pro on October 30, 2026.

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