Comparison

VAPolyFM vs DOTEC

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

Head to head
About

VAPolyFM

Create music with a versatile hybrid synthesizer offering both FM and virtual analog subtractive synthesis. Explore a wide range of effects, a built-in sequencer, and extensive MIDI support. Save and share projects seamlessly across iPhone, iPad, and Mac.

Highlights
  • FM synthesizer with 6 operators
  • Virtual analog subtractive synthesizer
  • Built-in effects (delay, chorus, reverb)
  • Sequencer with piano roll editor
  • AudioUnit Extension (AUv3) support
  • Ableton Link and MIDI 2.0 support
  • iCloud Drive project sharing
Features
Read full description

VAPolyFM is a hybrid polyphonic synthesizer for iPhone, iPad and Mac. It features FM synthesizer and subtractive synthesizer. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. FM synthesizer features 6 operators and 32 algorithm and it is inspired by FM synthesizers of the 1980’s. Virtual analog subtractive synthesizer features two oscillators, resonant high pass filter, resonant low pass filter and two ADSR envelopes per voice. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. VAPolyFM 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 - FM Synthesizer. 6 operators and 32 algorithm. Virtual analog subtractive synthesizer. Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and sequencer. Support MIDI 2.0 Support Audio Unit Extension (AUv3) 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. Includes 139 Factory Presets - System Requirements - A13 Fusion or above is recommended. 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. Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices.

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!

Screenshots

VAPolyFM4 screens
DOTEC4 screens

Verdict

The call

The clearest difference is review sentiment: DOTEC at 67% against VAPolyFM's 17%. DOTEC also leads on update cadence (every 3 weeks vs every 17 months) and price ($9.99 vs $14.99). VAPolyFM'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

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

ReceptionRating · Positive reviews · Number of ratings

VAPolyFM holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 6 and 9 respectively. Written reviews complicate that: 17% of VAPolyFM's written reviews are positive against 67% of DOTEC's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

VAPolyFM ships an update every 17 months, DOTEC every 3 weeks. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.

Scorecard5 real differences · 5 level
VAPolyFM versus DOTEC: the parameters behind the verdict, then further details
ParameterVAPolyFMDOTEC
Price$14.99$9.99 — better
Rating4.5 (6 ratings) — better4.3 (9 ratings)
Positive reviews16.7% of reviews66.7% of reviews — better
Number of ratings69 — better
Update frequencyEvery 17 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.612.0 — better
Further details — not scored
Size17 MB17 MB
Age rating4+4+
DeveloperRyo Togawafmfmsoft Corp.

Customer experience

VAPolyFM

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews6 reviews
Positive16.7%
Neutral33.3%
Negative50.0%

DOTEC

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

In-app purchases

None

VAPolyFM

No in-app purchases

None

DOTEC

No in-app purchases

Questions

Is VAPolyFM free?
VAPolyFM costs $14.99, with no in-app purchases.
Is DOTEC free?
DOTEC costs $9.99, with no in-app purchases.
Which has better reviews, VAPolyFM or DOTEC?
VAPolyFM is rated higher. VAPolyFM averages 4.5 out of 5 from 6 ratings, while DOTEC averages 4.3 from 9 ratings.
Do VAPolyFM or DOTEC have ads?
Neither VAPolyFM nor DOTEC shows ads.
Which is updated more often, VAPolyFM or DOTEC?
VAPolyFM ships an update every 17 months, and DOTEC every 3 weeks. Most recently, VAPolyFM was updated on September 21, 2026 and DOTEC on September 8, 2026.

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