DeDrummer vs VAPolyTS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DeDrummer
This music app acts as an AUv3 EQ designed for DJs. It allows users to effectively remove drum and bass frequencies from tracks, and also features a "Vocal Featuring" option to emphasize mid-range sounds.
- Remove drum sounds
- Remove bass sounds
- Emphasize vocal range
- AUv3 plugin support
- DJ-focused EQ
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Concept: The app is a powerful AUv3 EQ for DJ which can remove drum & bass sounds from musical pieces. Usage: "Drum" slider will remove drum sounds. "Low Cut" knob will remove bass sounds. "Vocal Featuring" will emphasize the middle range. System Requirements: Auv3 host (Cubasis, AUM, apeMatrix etc).
VAPolyTS
Create iconic electronic music sounds with this polyphonic synthesizer. It offers advanced oscillator stacks, a step sequencer, and built-in effects for crafting Trance, House, and Techno. Seamlessly share projects across iPhone, iPad, and Mac via iCloud.
- Polyphonic subtractive synthesizer
- Stack oscillators with detuned and octave-shifted outputs
- Analog style step sequencer with piano roll editor
- Built-in delay, chorus, flanger, reverb, EQ, and compressor
- Audio Unit Extension (AUv3) and Ableton Link support
- MIDI 2.0 and Bluetooth MIDI compatibility
- iCloud Drive project sharing across Apple devices
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VAPolyTS is polyphonic synthesizer for iPhone, iPad and Mac. It is inspired by the synthesizers which contributed to shape iconic sounds of Trance, House and Techno Music in 1990’s. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. The synthesizer features two stack oscillators. The one of them can generate mix of detuned seven oscillator outputs. The other one can generate mix of several octave shifted oscillator outputs. It also features a mixer, a resonant low pass filter, a resonant hight pass filter, an amplifier, two envelope generators, two LFO and analog style step sequencer. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. VAPolyTS 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 Polyphonic subtractive synthesizer. Stack oscillator which can generate mix of seven detuned oscillator outputs. Stack oscillator which can generate mix of several octave shifted oscillator outputs. Analog Style Step Sequencer. Eight Assignable Controllers. 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 256 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 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
Verdict
The clearest difference is update cadence: DeDrummer at every 10 days against VAPolyTS's every 10 months. DeDrummer also leads on price ($2.99 vs $5.99) and iOS requirement (12.0 vs 16.6). 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
DeDrummer costs $2.99 and VAPolyTS $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for DeDrummer against 5.0 for VAPolyTS. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
DeDrummer ships an update every 10 days, VAPolyTS every 10 months. The most recent releases landed on August 24, 2026 and September 13, 2026 respectively.
| Parameter | DeDrummer | VAPolyTS |
|---|---|---|
| Price | $2.99 — better | $5.99 |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 10 days — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 7 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Satoshi Kajii | Ryo Togawa |
Customer experience
DeDrummer
VAPolyTS
In-app purchases
DeDrummer
No in-app purchases
VAPolyTS
No in-app purchases









