# Pro-A5 Synth + AUv3 — #1 Poly Analog Synthesizer

> 10-voice analog poly synthesizer emulation with advanced sound design features. (iPhone/iPad app by AudioKit Pro.)

- Source: https://appshunter.io/ios/app/pro-a5-synth-plus-auv3/id6764386977 (this page in markdown: same URL + `.md`)
- Developer: [AudioKit Pro](https://appshunter.io/developer/1307785645)
- Category: Music, Entertainment
- Price: $9.99 (on sale, was $14.99)
- Rating: 4.80/5 from 78 App Store ratings · 67 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.4 · 64 MB
- Languages: American English
- Released: 2026-06-04
- Data updated: 2026-09-12
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/pro-a5-synth-plus-auv3/id6764386977/reviews.md

## What is Pro?

PRO-A5 (10-Voice Analog Synth)
Experience the warm organic sound of the most iconic analog poly synth ever made. From Lush Brass, Silky Pads and Basses to Soaring Leads, this is the sound that defined Music Icons from the 80s to Radiohead. 

MAKE THE MUSIC YOU LOVE
"SOUNDS AMAZING!" –  Jim Sheridan, Live Band on "Name that Tune" TV Show on Fox
Indie, Hip Hop, Pop, Funk, 80s, Synthwave, Rock, Lo-Fi, EDM, Ambient.. your sound awaits!
"Sounds Authentic and Beautiful" –  Synth Anatomy

PURE SYNTH POWER!
2 FILTERS: Classic "REV 3" Inspired Stepped Filter Grit with Beautiful Stepping & Modern Smooth options
Powerful Oscillator Sync, Poly Mod, Per-voice Analog Panning, Poly Unison stacks...

"Pro-A5 synth is bonkers!!! Great job!!" – Kennard Garrett, Grammy-winning producer

Plus a magic “Tune Rez” button that instantly tunes the filter self-oscillation so you can play the filter 

“I’m speechless. My most favorite analog synth on iPad ever. Unbelievable 70s / 80s feel” – Jay Zen, Producer
"Fantastic! I've got at least 100 synths, yet Pro-A5 has impressed me. Great emulation and sounds unique. Genius!" – DMT Cymatics
"This thing sounds totally insane. Makes me want to put wooden sides on my iPad" – Bri Kup
"It has that warmth that other digital synths don't have" – Fieldtone Audio

WATCH VIDEOS TO HEAR IT IN ACTION:
audiokitpro.com/proa5

FEATURES
• Desktop-VST Quality 10-Voice poly synth
• NEW Sound Engine with advanced analog-modeling DSP
• Authentic Poly-Mod with Filter ENV & OSC B as sources
• Professionally modeled filter with self-oscillation
• MICROTONALITY Panel + 150 Curated Scales (Microtonal, Indian, 12-tone, and more)
• 600+ Exclusive Presets included (more to come)
• 2 Filter styles: Classic Stepped "REV 3" Inspired and Modern Smooth
• Magic “Tune Rez” button to instantly tune self-oscillation
• 10 voices x 5 unison voices = almost a P-50?!

You know the sound. If you need more details:
• Raw, gritty Oscillator Sync
• Accurate PWM engine with unique hardware-style Poly Mod behavior
• Per-Voice Analog Panning
• Single Note Polyphony for mono and poly sounds
• 2x oversampling for more analog-style lows and highs
• Original Hardware controls fit on one screen on iPad!

• Aftertouch with 60+ possible destinations
• 3 LFOs with 60+ destinations
• LFO Shapes use analog resistor-mix behavior with soft-limiting
• Dual assignable Touch Pads for real-time performance control
• Classic Arpeggiator
• Vintage-style Step Sequencer
• NEW Cascading Reverb
• FX: Rage Limiter, Analog Tape Delay, Chorus, Crush, and more

• MIDI keyboard support + MIDI Learn
• Universal app for iPhone and iPad
• 432 Hz and selectable A-Tuning
• Choose a key like Cm, Bb, Fm, and more. Select from Major, Minor, Blues, Pentatonic, and other scales you know and love!
• Bonus Filter panel with slopes, envelope inversions, and extra goodies
• No ads, subscriptions, or in-app purchases

WORKS AS A PLUG-IN
Use PRO-A5 as an AUv3 instrument in Logic for iPad, GarageBand, AUM, Cubasis, and more.

WORKS BY ITSELF
No other apps required. Play it standalone, connect a MIDI keyboard, map your controls with MIDI Learn, and start making music right away.

EXPRESSIVE CONTROL
PRO-A5 is built for performance. Use velocity, aftertouch, touch pads, LFOs, Poly Mod, MIDI Learn, and real-time FX control to make sounds move, breathe, and evolve.

FREE UPGRADES
MPE and Polyphonic Aftertouch are planned as a FREE future upgrade.

PRO-A5 brings classic poly synth magic into the future.

LEGAL NOTICES
PRO-A5 is an original AudioKit instrument created to celebrate music-making and classic analog synthesis. It is not an official emulation, clone, or recreation of any specific hardware instrument. “REV 3” is used descriptively to refer to a revision-style sound character and does not imply affiliation with or endorsement by Sequential or any other third-party manufacturer. All trademarks are the property of their respective owners.

## Key features

- 10-voice polyphonic analog synth emulation
- Authentic Poly-Mod and filter modeling
- Dual filter styles: Classic Stepped and Modern Smooth
- Extensive preset library with 600+ sounds
- Microtonality panel with 150 curated scales
- AUv3 plugin support for DAWs
- Vintage-style step sequencer and arpeggiator

## Chart rankings

- #156 in Top Paid · Music (US App Store)

## Recent user reviews (10 of 67)

All indexed reviews: https://appshunter.io/ios/app/pro-a5-synth-plus-auv3/id6764386977/reviews.md

### 5/5 — BRILLIANT!

*2026-07-21*

Very glad someone has finally done the Prophet V. 
It works extremely well, sounds great, and has some excellent modern additions, like the step sequencer, arpeggiator, and digital effects.
Also (very important), the developer is very responsive. Several updates have already come out, including one I requested.
The Prophet V, one of the most iconic instruments of the late 70s and beyond, is on iOS. Strongly recommended.

### 5/5 — An enjoyable synth with excellent support

*2026-06-30*

This synth is a joy to use and is getting better all the time. When I emailed the developer about trouble importing a .scl file, he got back to me right away and it was fixed in the next release. Fantastic!

### 4/5 — Epic but Needs Easy Bug Fix

*2026-06-26*

I’m loving the tones I’m getting out of this! However, as a drummer who’s often playing bass with my left hand, I noticed that in mono mode, you still get overlapping polyphony with a long Release. Not sure if this is reflecting the original hardware (for instance, this isn’t an issue in other apps like J6 nor King of FM which I also love), but either way, it’d be great if a future update could include a true monophonic voice mode so triggering a new note while, a previous note is still releasing, will actually retrigger the VCA instead of adding second (or even 3rd) voice.

### 5/5 — non profit organisation  🙃

*2026-06-25, version 1.3*

very prophet synth 😃

### 5/5 — とても良く出来ています。音色セーブ時にはちょっと注意が必要

*2026-06-17*

Prophet-5のエミュレーションアプリをずっと待っていました。リリースしてくれてありがとう。以前当レビューでノイズの問題を指摘しましたが、V1.3で改善されました。プリセット音色にも面白いものが多いです。

ただ、エディットした音色がUser Bank以外にもセーブ出来てしまうのは少し問題だと思います（プリセットサウンドのアップデートで、以前作った音色が消えてしまいました）。こちらも改善してもらえると嬉しいです。

### 5/5 — Wirklich, wirklich fantastisch

*2026-06-16*

Was ein cooles Gerät.
Die Presets sind super. Die Soundmöglichkeiten sind enorm. 
Es macht extrem viel Freude zu tweaken und zu schrauben.
Und jetzt nach dem Update mit Microtonalen Scalen…. Einfach umwerfend. 
Das Vielfache seines Preises wert!

### 5/5 — Sehr gut 👍

*2026-06-16*

Durch die Updates wird der wirklich außergewöhnlich ! Die neuen Funktionen sind sehr gut und fehlen mir auf dem MAC , wird Zeit das das Ding auf  OS läuft. Wie alle AudioKit Synth , ein Must have fürs iPad.

### 1/5 — Another bad plugin

*2026-06-15*

The plugin doesn’t work with my daw you guys keep making bad plugin just make a plugin that works with any daw can’t play sound when I add it to my daw but when it by itself it plays y’all just make plugins without thinking because y’all want money once y’all fix it I’ll give it 5 stars but for now y’all ain’t getting none

### 5/5 — Sounds amazing!!!

*2026-06-15*

I have to admit that I didn’t like it at first - same old boring patches drenched in chorus, delay and reverb.  But thankfully I dug deeper and what’s under the hood is truly special.  The first thing is that the patches don’t fall apart when you remove the fx - they still sound full of character.  This synth captures the spirit of working in the analog domain and sounds like an actual instrument full of surprises and quirks and possibilities.  Does it sound exactly like a prophet 5?  I don’t really care as long as it sounds alive and this synth definitely delivers when you dive deep.   Some of the banks further down on the list really start to show what’s possible.  And finally the added design touches really make it shine — poly unison, retro and modern filters, high pass filter, arp (but please add swing), additional LFOs and mod matrix, vintage knob, saturation, overdrive and recently micro tuning!!

### 5/5 — An Amazing Instrument

*2026-06-15*

This is a recreation of the classic Sequential Circuits’ Prophet 5, but the AudioKit team has breathed so much love into this app that, in many ways, it far exceeds the original while still preserving the essential character. 

Normally, when exploring a new app, I’ll start making patches, seeing how far I can push the synth engine. I usually make 10. With the A5, I made 20 in one sitting, and each was something I immediately wanted to use. 

The modulation capabilities are vast. In addition to 3 LFOs, OSC 2 can be used as a 4th LFO, or as an Audio Frequency modulation source for FM, opening a whole new set of sounds. 

As with many AudioKit apps, the UI is easy to navigate, and packed with an abundance of features. Need an arpeggiator? Done. A sequencer? It’s there. Need to play a Gamelan scale? A whole microtonal scale system is built in. The audio effects are simple, but sound amazing. 

AudioKit continues to update capabilities, improve performance, and fix bugs quickly when they show up. Also, buying their apps supports their important mission of providing free professional tools to anyone who wants to learn synthesis, or make music. 

Thanks, Matthew!

## Frequently asked questions about Pro

### What kind of synthesizer is Pro-A5?

Pro-A5 is a 10-voice polyphonic analog synthesizer emulation. It aims to replicate the warm, organic sound of iconic analog synths from the 80s and beyond, suitable for various music genres.

### Does Pro-A5 have ads?

No, Pro-A5 does not contain advertisements. The app is a one-time purchase and is free of ads, subscriptions, or in-app purchases.

### What are the filter options in Pro-A5?

Pro-A5 offers two distinct filter styles: a classic "REV 3" inspired stepped filter for grit and a modern smooth option. It also features a unique "Tune Rez" button to instantly tune the filter's self-oscillation.

### Can Pro-A5 be used as a plugin?

Yes, Pro-A5 works as an AUv3 instrument. This allows you to use it within Digital Audio Workstations (DAWs) like Logic for iPad and GarageBand on iOS devices.

### What is the price of Pro-A5?

Pro-A5 is available for a one-time purchase of $4.99. This price grants you full access to all features without any additional costs or subscriptions.

### How often is Pro-A5 updated?

The latest version of Pro-A5 is 1.3, which was last updated on June 15, 2026. While specific update frequency isn't detailed, the release date suggests ongoing development.

### What devices is Pro-A5 compatible with?

Pro-A5 is a universal app designed for both iPhone and iPad. It is also compatible with iPod devices, offering a consistent experience across Apple's mobile ecosystem.

### Does Pro-A5 support microtonal scales?

Yes, Pro-A5 includes a dedicated Microtonality Panel with 150 curated scales. These include microtonal, Indian, 12-tone, and other specialized scales for diverse musical exploration.

## Version history (last 5 releases)

### 1.4.2 — 2026-07-19

THANKS EVERYONE! 
• FIXED: Long glide/portamento now returns smoothly from the current pitch position when releasing a held note, instead of jumping to the target note first. The other AudioKit synths will also get this fix. Thanks!

• IMPROVED: Mono mode behavior has been refined. Mono non-legato still keeps the musical analog-style response where released notes can naturally ring out, useful for Juno-style arp tails and long releases. Mono Legato now more strictly cuts off lingering release tails after keys are released, for a more traditional mono synth response.

• FIXED: A few presets could play with an unexpectedly fast LFO or "mystery vibrato" after loading or saving. LFO rates now remain consistent with the knob setting.

MORE FREE UPDATES and FREE PRESETS COMING SOON!

### 1.4.1 — 2026-07-08

THANKS EVERYONE! 
• IMPROVED: World Scales work better. The following scales are fine-tuned by experts: Chinese (Pentatonic), Çargâh, Hicaz Ascending (Turkish), Hicaz Descending (Turkish), Huseyni (Modern / Arabic), Hüseyni Ascending (Turkish), Hüzzam, Karcıǧar, Nikriz Ascending, Rast Ascending v1, Rast Ascending v2, Rast Descending v2, Saba (Arabic), Şedaraban (Turkish), Sikah (Arabic), Segâh (Turkish), Suznak [Basit] (Arabic), Pahadi Raga
• IMPROVED: LFO Timing
• Plus, lots of other small fixes!
COMING SOON: More Updates + Almost 200 NEW professionally made presets. It'll be a Free upgrade!

### 1.4 — 2026-06-29

THANKS! Another Big Free Update. This app will get better & better!
• NEW: WORLD SCALES
Explore 60+ international scales with selectable root keys. Choose from Arabic, Egyptian, Eastern, and other world scales, then pick the base key that fits your song.
Special thanks to Aram from TAQS.IM for the world scales!

• IMPROVED: Noise Oscillator Filter Tracking
Noise oscillator filter tracking now works properly. This may slightly change the sound of some existing presets, but the behavior is now correct and more consistent.

• IMPROVED: Scala File Import
Updated support for importing more Scala .scl files.
If you still have a Scala file that will not import, please email me: matthew@audiokitpro.com

• IMPROVED: Tuning and Scale Locking
Fixes several tuning and scale locking issues.

• IMPROVED: AUv3 State Restore
Improved AUv3 state restore, especially with cutoff and resonance interactions.

• NEW: More MIDI Learn Destinations
Added more MIDI Learn destinations, including Filter KYBD Toggle, Resonance Tuning Toggle, and more.

• NEW: Last Used Preset Bank Recall
The app now remembers your last used preset bank when reopening.

• FIXED: Aftertouch and VCF Frequency
Fixed an issue where aftertouch could affect VCF Frequency when the LFO was also assigned.
PLUS: Other small fixes and improvements.
More FREE Presets, Fixes, and Updates to come soon!

### 1.3 — 2026-06-15

THANKS EVERYONE! Another MASSIVE FREE UPGRADE:
** NEW: Western Key + Scale Support **
+ Choose a key like C minor, Bb, F minor, and more. Select from Major, Minor, Blues, Pentatonic, and other scales you know and love!
+ Keep your arps, sequences, and external MIDI locked to a Western scale or go fully microtonal.

• NEW: Presets Save Their Key and Scale
Want Preset #17 to always load in Dm? Now it will. Save presets with the right key signature for songs, live sets, and performance patches.

• NEW: AUv3 State Saving for Tuning and Scale
Your tuning and scale settings are now saved properly inside AUv3 sessions.
• Tune Lock starts unlocked, so presets can load with their saved tuning. Tap the lock icon to keep the same tuning while changing presets.

• Microtonal Dice improved: In Microtonal mode, Dice chooses a random microtonal scale.
In Western mode, Dice keeps your current key, like Fm or C, and chooses a new Western scale around it.

• IMPROVED: AUv3 Stability: Fixes several edge case crashes and improves overall AUv3 reliability.
• IMPROVED: Noise Oscillator: The noise oscillator now has more hardware-like low end.

I’m working on making the app better and better. If you run into major bugs, you can email me directly:
matthew@audiokitpro.com
Thanks!

### 1.2 — 2026-06-13

FREE UPGADE: MICROTONALITY Added! EPIC!
+ NEW: Microtonality Panel by Marcus Hobbs, creator of Wilsonic
+ Comes with 150+ Curated Microtonal Scales including North Indian, Hexanies, and scales by Irv Wilson, Marcus Hobbs, Kraig Grady, and more. 
+ Import your own Scala files (.scl)
+ Features the preferred Microtonal code by Marcus Hobbs, the very code used by expensive desktop VSTs. 
Plus, still responds to the A440/432 etc tuning as well 
If you have some Scala files that don't load, email them to me. And I'll add compatibility! :) 
MORE UPDATES TO COME!

I’m working on improving the app daily. If you run into bugs, you can email me directly:
matthew@audiokitpro.com
Thanks!

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All apps by AudioKit Pro: https://appshunter.io/developer/1307785645

## Related topics

[audiokit pro](https://appshunter.io/ios/topics/audiokit-pro) · [audiokit](https://appshunter.io/ios/topics/audiokit) · [multiband correl for logic pro](https://appshunter.io/ios/topics/multiband-correl-for-logic-pro)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-12.*
