Comparison

DOTEC vs VAPolyFMv2

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

Head to head
About

DOTEC

This music software is an acid bass synthesizer that supports AUv3. It allows for easy creation of bass lines with auto-adjusted overdrive and intuitive MIDI control. Features include a phrase generator, DJ Deck mode, and Ableton Link support for standalone use.

Highlights
  • Acid bass line creation
  • Intuitive MIDI controller assignments
  • Phrase generator with rhythm sync
  • DJ Deck mode for standalone play
  • Ableton Link support
  • Visual effects for enhanced experience
Read full description

This product is a software synthesizer that supports Audio Units Extension (AUv3). Music software that supports the AUv3 host function, such as GarageBand or Logic Pro for iPad, is required to use this product. DOTEC-AUDIO DeeACID allows anyone to easily enjoy acid bass lines. In addition to a wide variety of sound creation, the level adjustment for overdrive has been auto-adjusted, allowing you to twist the knobs to your heart's content. The UI is specially designed for use with a DAW, and MIDI controller assignments can be made quickly and easily. It also features a variety of visual effects to enhance your enjoyment, so you will lose track of time and become absorbed in the fun! In addition, the phrase generator can generate an unlimited number of phrases according to key, and can also be synchronized with the rhythm track for real-time play! The generated phrases can be saved as MIDI files, so they can be loaded from a DAW and used. By connecting an external MIDI controller and pressing the “Learn” button located below each parameter, you can assign the parameter to the slider of your choice, allowing you to change the tone more intuitively! From version 1.5.0, the DJ Deck mode allows standalone play, and from version 2.0.0, the Ableton Link mode has been added. Now, DeeACID is not just a plugin—it can also be enjoyed as a fully standalone acid bass app! Furthermore, version 2.5.0 introduces brand-new filters and a supercharged phrase generator! From version 2.6.0, improved the oscillators so both Type I and Type II now deliver a thicker sound!

About

VAPolyFMv2

This modular FM synthesizer offers 8 operators with spectral form and pitch EG, supporting standalone use or as an AUv3 extension. It includes built-in effects, a step sequencer, and extensive MIDI and Ableton Link integration for music creation across Apple devices.

Highlights
  • 8 Operator Modular FM Synthesizer
  • Built-in effects (delay, chorus, reverb, etc.)
  • Analog style step sequencer
  • Audio Unit Extension (AUv3) support
  • Ableton Link and MIDI 2.0 integration
  • Cross-platform iCloud Drive project sharing
Features
Read full description

VAPolyFM V2 is modular FM synthesizer inspired by modern FM Synthesizers. V2 features 8 operators, 4 oscillator spectral form and pitch EG per operators. VAPolyFM operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features 8 Operator Modular FM Synthesizer. 4 Spectral Form. Pitch EG per Operators. Modular Operator Routing. Eight Assignable Controllers with Global Offset Parameters for Performance. Analog Style Step Sequencer. Maximum 8 voice polyphony. It depends on performance of the device it is running. Built-in effects and piano roll sequencer. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Audio Unit Extension (AUv3). Support MIDI 2.0. Support Foot Pedal and Per Note Control. Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Include 230 Factory Presets, 40 Effects Presets and 5 Macro 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. UI Color can be selected from black, navy or gray. System Requirements iOS 17.0 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

DOTEC4 screens
VAPolyFMv24 screens

Verdict

The call

The clearest difference is price: DOTEC at $9.99 against VAPolyFMv2's $14.99. DOTEC also leads on review sentiment (67% vs 50%) and update cadence (every 3 weeks vs every 2 months). VAPolyFMv2's advantage is rating (4.5 vs 4.3). On ratings volume, ads, 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

DOTEC costs $9.99 and VAPolyFMv2 $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

VAPolyFMv2 holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 9 and 6 respectively. Written reviews complicate that: 67% of DOTEC's written reviews are positive against 50% of VAPolyFMv2's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

DOTEC ships an update every 3 weeks, VAPolyFMv2 every 2 months. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

Scorecard5 real differences · 5 level
DOTEC versus VAPolyFMv2: the parameters behind the verdict, then further details
ParameterDOTECVAPolyFMv2
Price$9.99 — better$14.99
Rating4.3 (9 ratings)4.5 (6 ratings) — better
Positive reviews66.7% of reviews — better50.0% of reviews
Number of ratings9 — better6
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better16.6
Further details — not scored
Size17 MB20 MB
Age rating4+4+
Developerfmfmsoft Corp.Ryo Togawa

Customer experience

DOTEC

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews12 reviews
Positive66.7%
Neutral8.3%
Negative25.0%

VAPolyFMv2

All ratings6 ratings
Positive83.3%
Neutral16.7%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

DOTEC

No in-app purchases

None

VAPolyFMv2

No in-app purchases

Questions

Is DOTEC free?
DOTEC costs $9.99, with no in-app purchases.
Is VAPolyFMv2 free?
VAPolyFMv2 costs $14.99, with no in-app purchases.
Which has better reviews, DOTEC or VAPolyFMv2?
VAPolyFMv2 is rated higher. DOTEC averages 4.3 out of 5 from 9 ratings, while VAPolyFMv2 averages 4.5 from 6 ratings.
Do DOTEC or VAPolyFMv2 have ads?
Neither DOTEC nor VAPolyFMv2 shows ads.
Which is updated more often, DOTEC or VAPolyFMv2?
DOTEC ships an update every 3 weeks, and VAPolyFMv2 every 2 months. Most recently, DOTEC was updated on September 8, 2026 and VAPolyFMv2 on September 20, 2026.

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