Comparison

Aurora (MIDI Controller) vs VAPolyMT

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

Head to head
About

Aurora (MIDI Controller)

Transform space weather data into musical expression with this live MIDI controller. Connect to your DAW and map real-time electromagnetic readings to create unique soundscapes and dynamic tracks.

Highlights
  • Live data streaming from observatories
  • Flexible MIDI mapping
  • Connects to DAWs like Ableton Live
  • Cross-platform compatibility (iOS, macOS)
  • Creates ambient and techno music
Features
Read full description

Aurora is a live MIDI controller powered by real-time data from space weather observatories and satellites. Connect Aurora to your favorite DAW (like Ableton Live) and transform electromagnetic readings into musical expression. Features: • Live data streaming from NOAA and Dombås observatory • Flexible MIDI mapping for CC controls • Works across iPhone, iPad, and Mac Catalyst Whether you're crafting ambient soundscapes or building dynamic techno tracks, Aurora connects your music to the rhythms of the planet.

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.

Screenshots

Aurora (MIDI Controller)4 screens
VAPolyMT4 screens

Verdict

The call

The clearest difference is price: Aurora (MIDI Controller) at $2.99 against VAPolyMT's $14.99. Aurora (MIDI Controller) also leads on update cadence (every 8 days vs every 11 months). On rating, ratings volume, ads and in-app purchases 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

Aurora (MIDI Controller) costs $2.99 and VAPolyMT $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Aurora (MIDI Controller) against 5.0 for VAPolyMT. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

UpkeepUpdate frequency

Aurora (MIDI Controller) ships an update every 8 days, VAPolyMT every 11 months. The most recent releases landed on June 3, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 8 level
Aurora (MIDI Controller) versus VAPolyMT: the parameters behind the verdict, then further details
ParameterAurora (MIDI Controller)VAPolyMT
Price$2.99 — better$14.99
Rating5.0 (2 ratings)5.0 (4 ratings)
Positive reviews50.0% of reviews—
Number of ratings24 — better
Update frequencyEvery 8 days — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.616.6
Further details — not scored
Size6 MB18 MB
Age rating4+4+
DeveloperJason SnellRyo Togawa

Customer experience

Aurora (MIDI Controller)

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

VAPolyMT

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Aurora (MIDI Controller)

No in-app purchases

None

VAPolyMT

No in-app purchases

Questions

Is Aurora (MIDI Controller) free?
Aurora (MIDI Controller) costs $2.99, with no in-app purchases.
Is VAPolyMT free?
VAPolyMT costs $14.99, with no in-app purchases.
Which has better reviews, Aurora (MIDI Controller) or VAPolyMT?
Aurora (MIDI Controller) and VAPolyMT are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.
Do Aurora (MIDI Controller) or VAPolyMT have ads?
Neither Aurora (MIDI Controller) nor VAPolyMT shows ads.
Which is updated more often, Aurora (MIDI Controller) or VAPolyMT?
Aurora (MIDI Controller) ships an update every 8 days, and VAPolyMT every 11 months. Most recently, Aurora (MIDI Controller) was updated on June 3, 2026 and VAPolyMT on September 20, 2026.

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