VOLT Synth vs BLEASS Alpha Synthesizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VOLT Synth
This app is a virtual analog synthesizer designed for expressive sound creation. It supports multidimensional polyphonic expression (MPE) and offers a variety of synth voice features, built-in effects, and keyboard layouts. It's compatible with MPE hardware and software, as well as standard MIDI controllers.
- Virtual analog synthesizer
- Multidimensional Polyphonic Expression (MPE)
- Expressive synth engine
- Multiple keyboard layouts
- Built-in stereo effects
- 100+ factory presets
- Standalone and AUv3 support
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VOLT is a virtual analog synthesizer designed to create classic synth sounds while emphasising expressive play. With full support for multidimensional polyphonic expression (MPE) - VOLT is a great companion to any Seaboard player. Overview: * Polyphonic Virtual Analog Synthesizer * Expressive synth engine with MPE, poly-, channel aftertouch & 4D touch keyboard * 5 Keyboard Layouts (Classic, Uniform, String, Scale & Chord) * Built-in stereo effects * 100+ fine tuned factory presets * Supports ROLI Seaboard, LinnStrument, Geoshred and others out of the box * Standalone operation with support for USB audio interfaces, wired, network & bluetooth MIDI * Audio Unit v3 Extension * Inter App Audio support * Audiobus support * Ableton Link Synth Voice: * Variable waveshape * Variable pulse-width (on all waves) * Detunable sub & noise source * SEM style state-variable filter * LFO per voice * Dual ADSR * Poly drive (per voice distortion) * 8x Polyphony / Unison * Detune / Slop * Pan Spread * Arpeggiator Effects: * 3x stereo effect units * Vintage Chorus * Digital Delay (syncable) * Epic Reverb Input/Expression: * MPE MIDI hardware including but not limited to ROLI Seaboard Rise, Seaboard Block, Lightpad Block * MPE MIDI software including but not limited to Geoshred, Geoshred Control * Regular MIDI keyboards featuring channel or poly aftertouch, pitch- and mod wheels * Onscreen 2D Touch Keyboard (supports slide and glide) * Plain MIDI Input Presets: * Factory bank including 100+ expressive presets ready to play out of the box * Preset Management with Templates & Categories * Shared User Presets between Standalone and AUv3 versions * Preset Export & Import via Files.app, Airdrop etc. * iCloud Drive Support Connectivity: * Standalone * AUv3 Instrument * Inter-App Audio Instrument * Audiobus Instrument
BLEASS Alpha Synthesizer
This versatile polyphonic synthesizer offers a virtual analog sound engine inspired by classic hardware. It provides intuitive sound design tools, efficient CPU usage, and a unique motion sequencer for expressive modulation. Explore a vast library of presets and create unique sounds for your music.
- Virtual analog polyphonic stereo synthesizer
- Intuitive sound design interface
- CPU efficient for live performance
- Unique motion sequencer
- Built-in arpeggiator
- Over 200 factory presets
- Audio Unit V3 compatible
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BLEASS Alpha Synthesizer is a versatile virtual analogue polyphonic synthesizer built for immediate, hands-on sound design. Its three oscillators combine variable waveshapes and pulse widths with unison, hard sync, cross modulation and ring modulation, while dual variable-state filters with drive add further colour and character. The streamlined interface follows the natural signal path, keeping powerful synthesis controls accessible at a glance. Bring sounds to life with three ADSR envelopes, two multi-waveform LFOs and extensive modulation possibilities, while the Motion Sequencer adds rhythmic and expressive movement that can work hand in hand with the built-in arpeggiator. MPE support extends the performance possibilities, and BLEASS' efficient audio engine keeps the experience smooth and responsive on mobile devices. A complete built-in effects section includes Overdrive, Bitcrusher, Tremolo, filtered ping-pong Delay and Reverb, adding everything from subtle movement to more radical processing directly within the synth. More than 200 factory presets provide ready-to-play sounds and starting points for your own creations. BLEASS Alpha Synthesizer can be used as a standalone app or AUv3 instrument on iPhone and iPad. Also available for Windows and macOS. More information and technical specifications available on: https://www.bleass.com/alpha/
Screenshots
Verdict
The clearest difference is review sentiment: BLEASS Alpha Synthesizer at 86% against VOLT Synth's 63%. BLEASS Alpha Synthesizer also leads on price ($14.99 vs $19.99) and rating (4.9 vs 4.6). VOLT Synth's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (9.0 vs 15.0). 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
VOLT Synth costs $19.99 and BLEASS Alpha Synthesizer $14.99 up front. VOLT Synth sells 3 one-off in-app purchases and BLEASS Alpha Synthesizer sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
BLEASS Alpha Synthesizer holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 193 and 108 respectively. Written reviews point the same way: 63% of VOLT Synth's written reviews are positive against 86% of BLEASS Alpha Synthesizer's.
VOLT Synth ships an update every 2 weeks, BLEASS Alpha Synthesizer every 2 months. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.
| Parameter | VOLT Synth | BLEASS Alpha Synthesizer |
|---|---|---|
| Price | $19.99 | $14.99 — better |
| Rating | 4.6 (193 ratings) | 4.9 (108 ratings) — better |
| Positive reviews | 62.9% of reviews | 86.1% of reviews — better |
| Number of ratings | 193 — better | 108 |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 92 MB | 38 MB |
| Age rating | 4+ | +4 |
| Developer | Kai Aras | BLEASS |
Customer experience
VOLT Synth
BLEASS Alpha Synthesizer
Bugs and requests
VOLT Synth
Reported bugs
18 issues- No MIDI input after 30 seconds
- Crashing when using multiple AU instances
- Presets disappear after iOS 14 update
- Standalone mode broken on recent iOS
- AU3 not working in Cubasis/NanoStudio 2
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- Crashes with iCloud Drive for patch storage on iOS 13
- Preset scroller not accessing sounds
- Stability issues on iOS 12
- UI issues in AU mode on iPhone
- No sound after last update
- Presets not loading
- AUv3 UI lacks preset selection slot
- Preset saving crashes app
- Digital readout under controls obscured by finger
- Latched key graphic disappears
- Legato mode doesn't work with aftertouch
- Pitch bend limited to 12 steps
- Global pitch bend setting disappeared
Requested features
7 requests- Two fields for sound forward/backward
- New features and sounds for MPE
- Dedicated strings section in presets
- Randomize function for LFOs/envelopes
- Larger fonts in preset display
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- Improve envelope snappiness
- Improve modulation routing options
BLEASS Alpha Synthesizer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
VOLT Synth
- Dub PackFree
- haQ attaQ paQ$3.99
- Red Sky Lullaby Pack$3.99
BLEASS Alpha Synthesizer
- Sound Of Izrael Preset Pack$2.99
- Red Sky Lullaby Preset Pack$2.99
- MPE Preset Pack #1$3.99
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- Lily Jordy Preset Pack$3.99
- The GarageBand Guide Pack$3.99
- Hoops Collection #1$3.99
- Yawdel Preset Pack$3.99
- Funk Preset Pack$3.99
- Torley Preset Pack$4.99
- The Sound Test Room Pack$4.99
Questions
Is VOLT Synth free?
Is BLEASS Alpha Synthesizer free?
Which has better reviews, VOLT Synth or BLEASS Alpha Synthesizer?
Do VOLT Synth or BLEASS Alpha Synthesizer have ads?
Which is updated more often, VOLT Synth or BLEASS Alpha Synthesizer?
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