ModWheels vs Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ModWheels
This app emulates classic synthesizer modulation and pitch wheels on your iPhone or iPod. Connect a MIDI interface to control any MIDI-enabled synth or keyboard, and utilize a pitch ribbon for vintage synth performance.
- Synthesizer modulation wheels
- Pitch wheels
- Pitch ribbon controller
- MIDI interface support
- MIDI over WIFI support
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ModWheels brings classical synthesizer modulation and pitch wheels to your iPhone and iPod. Just hook up a MIDI interface and control any MIDI enabled synth or keyboard. In addition to the wheel interface this app also features a pitch ribbon / wheel combination as it could be found on some vintage synths. This app comes in handy when you are using one of these new organ keyboards which also feature synth sounds. But for some reason the designers have forgotten the performance controls? ModWheels help you using the full potential of those keyboards. ModWheels can be used with most MIDI hardware like LINE6 MIDI Mobilizer and it also supports MIDI over WIFI ModWheels has been rated „Killer App“ by the testers of Apps4iDevices
Pro
This app emulates the sound of an iconic analog poly synthesizer, offering a wide range of sonic possibilities from warm pads to soaring leads. It features advanced modeling, multiple filter styles, and extensive customization options for musicians.
- 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
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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.
Screenshots
Verdict
The clearest difference is rating: Pro at 4.8 against ModWheels's 4.0. Pro also leads on update cadence (every 4 days vs every 3 months) and review sentiment (96% vs 81%). ModWheels's advantage is price ($1.99 vs $7.99) and iOS requirement (9.1 vs 14.4). On ads, in-app purchases, monetization model and chart position 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
ModWheels costs $1.99 and Pro $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Pro holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Pro has 78 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 81% of ModWheels's written reviews are positive against 96% of Pro's.
ModWheels ships an update every 3 months, Pro every 4 days. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.
| Parameter | ModWheels | Pro |
|---|---|---|
| Price | $1.99 — better | $7.99 |
| Rating | 4.0 (9 ratings) | 4.8 (78 ratings) — better |
| Positive reviews | 81.3% of reviews | 95.5% of reviews — better |
| Number of ratings | 9 | 78 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #198 | #162 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.1 — better | 14.4 |
| Further details — not scored | ||
| Size | 4 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthias Schorer | AudioKit Pro |
Customer experience
ModWheels
Pro
In-app purchases
ModWheels
No in-app purchases
Pro
No in-app purchases









