BLEASS Alpha Synthesizer vs polybeat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
polybeat
This advanced music production tool generates complex polyrhythmic and polymetric patterns. It offers extensive control over sequence length, step length, and step modulation for each drum voice. Requires an AUv3-compatible host or external sound source to produce audio.
- Configurable sequence and step length per drum voice
- Modulation of sequencer steps (accent, ratchet, chance, offset)
- Sample-accurate sequencing engine
- Sequence transformation actions (shift, rotate, randomize)
- AUv3 preset and state saving
- Offline functionality
- No ads or in-app purchases
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polybeat is an advanced and extremely flexible drum and percussion sequencer able to generate complex polyrhythmic and polymetric rhythmic patterns. nb: polybeat does not make sound by itself, you will need to load it in an AUv3-compatible host (such as AUM, Audiobus, ApeMatrix, Nanostudio 2, etc.) or connect it to an external drum machine, synthesizer, computer or any other sound generating device. features: - independently configurable sequence length per drum voice (ranging from 1 to 32 steps) - independently configurable step length per drum voice (ranging from double whole notes to 64th notes, including tuplets and dotted notes) - every sequencer step can be modulated by the following attributes: - accent on/off - ratchet (note repeats) - skip (note every *n* loops) - chance - timing offset - sample-accurate sequencing engine - slick and responsive native UI - undo/redo - individual drum voices can be muted or solo'ed - sequences can be instantly transformed by the following actions: - shift left/right - rotate - randomize - mirror - reverse - double - bisect - full AUv3 preset- and state-saving - ability to copy and paste patterns between instances of the plugin - mapping presets for popular AUv3 drum apps and hardware drum machines - includes musical scale presets for polybeat to be used as a melodic sequencer - responds to MIDI input for switching and selecting patterns, as well as performing pattern transformations - works offline - no push notifications - no ads or in-app purchases - no third-party behavioural tracking tools ongoing development and support, many new features on the roadmap
Screenshots
Verdict
The clearest difference is price: polybeat at $7.99 against BLEASS Alpha Synthesizer's $14.99. polybeat also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (11.0 vs 15.0). BLEASS Alpha Synthesizer's advantage is rating (4.9 vs 4.5) and review sentiment (86% vs 72%). On ads, in-app purchases and device support 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
BLEASS Alpha Synthesizer costs $14.99 and polybeat $7.99 up front. BLEASS Alpha Synthesizer sells 10 one-off in-app purchases and polybeat sells 2 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 4.5. That said, the two scores are not equally well evidenced: BLEASS Alpha Synthesizer has 108 ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 86% of BLEASS Alpha Synthesizer's written reviews are positive against 72% of polybeat's.
BLEASS Alpha Synthesizer ships an update every 2 months, polybeat fortnightly. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.
| Parameter | BLEASS Alpha Synthesizer | polybeat |
|---|---|---|
| Price | $14.99 | $7.99 — better |
| Rating | 4.9 (108 ratings) — better | 4.5 (20 ratings) |
| Positive reviews | 86.1% of reviews — better | 72.2% of reviews |
| Number of ratings | 108 — better | 20 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 18 MB |
| Age rating | +4 | 4+ |
| Developer | BLEASS | Corne Driesprong |
Customer experience
BLEASS Alpha Synthesizer
polybeat
In-app purchases
BLEASS Alpha Synthesizer
- Sound Of Izrael Preset Pack$2.99
- Red Sky Lullaby Preset Pack$2.99
- MPE Preset Pack #1$3.99
Show 7 moreShow fewer
- 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
polybeat
- Small tip$1.99
- Big tip$5.99
Questions
Is BLEASS Alpha Synthesizer free?
Is polybeat free?
Which has better reviews, BLEASS Alpha Synthesizer or polybeat?
Do BLEASS Alpha Synthesizer or polybeat have ads?
Which is updated more often, BLEASS Alpha Synthesizer or polybeat?
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