Comparison

VAPolyMT vs Centz

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

Head to head
About

VAPolyMT

This powerful synthesizer app offers bi-timbral polyphony with analog-style sequencers and assignable macro controls. It functions as a standalone application or an AudioUnit Extension, supporting MIDI, Ableton Link, and audio export. Project files are savable via iCloud Drive for cross-platform access.

Highlights
  • Bi-timbral polyphonic synthesizer
  • Analog-style step sequencer per timbre
  • Assignable macro controls
  • AudioUnit Extension (AUv3) support
  • Ableton Link and MIDI support
  • iCloud Drive project sharing
  • Built-in effects and piano roll editor
Features
Read full description

VAPolyMT is a bi-timbral polyphonic synthesizer for iPhone, iPad and Mac. It features analog style step sequencer per timbre and assignable macro controls. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. Each synthesizer consists of two oscillators, mixer, resonant low pass filter, resonant hight pass filter and amplifier. The synthesizers can be layered or can be split. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. VAPolyMT also includes sequencer which features piano roll editor and parameter automation. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features Bi-timbral polyphonic subtractive synthesizer. Analog Style Step Sequencer per timbre. Eight Assignable Controllers. Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and piano roll sequencer. Support Audio Unit Extension (AUv3). Support MIDI 2.0. Support Foot Pedal and Per Note Control. Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Include more than 200 Factory Presets. Improvements Support MIDI Foot Pedal (CC#11, CC#64) Support MIDI2.0 Per Note Control Messages MIDI CC Settings are saved. It will be recovered when the app launched in the next time. System Requirements iOS 17.0 or later macOS 14.0 or later Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. if sound is distorted when using a device with less CPU power, reduce number of voices. AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension.

About

Centz

Features
Read full description

Centz is a tuner that gets out of your way. Point it at your instrument, play a string, and a single focused LED-style meter tells you exactly what you need to know: flat, in tune, or sharp. No clutter, no menus to dig through — just fast, accurate tuning whether it's your first week or your next gig. THREE WAYS TO TUNE • Auto — Just play. Centz snaps to the nearest open string and shows how far off you are. Perfect for quick top-ups between songs. • Guided — Centz walks you through every string, lowest first, marking each one off as it lands in tune. The methodical way to tune the whole instrument. • Manual — Tap the string you want, and Centz measures against that one only. Ideal when a string is badly out and you want full control. BUILT FOR PLAYERS WHO TUNE A LOT OF THINGS Guitar, bass, ukulele and banjo — and now violin, viola, cello, double bass and mandolin, 7-string, 8-string and baritone guitars, the 12-string, and the tenor ukulele. Switch instruments in a tap. Each one carries its own tunings, so alternate setups aren't buried in settings. OR NO INSTRUMENT AT ALL Pick Chromatic and Centz listens for any pitch at all, names the nearest note and shows how far off it is — no instrument chosen, nothing assumed. Anything that sounds a pitch between 28 Hz and 1.5 kHz. STANDARD TUNING, FREE. ALWAYS. Every instrument has a free standard tuning, forever — open G on the banjo. Unlock the rest with Centz Pro: sixteen alternate tunings, twelve for guitar alone — Drop D, DADGAD, Drop C, Drop B, Eb standard, Double Drop D and the open family. One payment, no subscription. TUNE TO YOUR REFERENCE Concert pitch is fully adjustable. Tuning to A=432 instead of A=440? Playing alongside a piano that's drifted? Set the reference and every string follows. ACCURATE TO THE CENT Centz measures pitch error in cents and treats you as in tune within a tight tolerance — close enough that the meter agrees with a trained ear, every time. DESIGNED TO BE GLANCED AT A clean, distraction-free interface that reads instantly under stage lights or on the couch. Everything is analysed live through the microphone and never recorded, so nothing leaves your phone. Download Centz and spend less time tuning, more time playing.

Screenshots

VAPolyMT4 screens
Centz4 screens

Verdict

The call

The clearest difference is price: Centz at Free against VAPolyMT's $14.99. Centz also leads on update cadence (every 3 weeks vs every 11 months). VAPolyMT's advantage is in-app purchases (none vs 1) and iOS requirement (16.6 vs 26.0). On ads and device support 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

Centz is free to download; VAPolyMT costs $14.99 up front. Centz sells 1 one-off in-app purchase. VAPolyMT asks for nothing beyond the download.

UpkeepUpdate frequency

VAPolyMT ships an update every 11 months, Centz every 3 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 5 level
VAPolyMT versus Centz: the parameters behind the verdict, then further details
ParameterVAPolyMTCentz
Price$14.99Free — better
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 11 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.6 — better26.0
Further details — not scored
Size18 MB5 MB
Age rating4+4+
DeveloperRyo TogawaGreg Raine

In-app purchases

None

VAPolyMT

No in-app purchases

1 purchases

Centz

One-time1
  • Centz Pro$3.99

Questions

Is VAPolyMT free?
VAPolyMT costs $14.99, with no in-app purchases.
Is Centz free?
Centz is free to download, with in-app purchases available.
Do VAPolyMT or Centz have ads?
Neither VAPolyMT nor Centz shows ads.
Which is updated more often, VAPolyMT or Centz?
VAPolyMT ships an update every 11 months, and Centz every 3 weeks. Most recently, VAPolyMT was updated on November 4, 2026 and Centz on November 5, 2026.

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