Comparison

Blackice Beta Gamma vs PolyBud Polyrhythmic Sequencer

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

Head to head
About

Blackice Beta Gamma

This app provides a virtual bass amplifier with a modern-classic sound. It features a custom overdrive/distortion circuit, a VCA compressor, and a six-band graphic equalizer for tone sculpting. It also includes a noise gate and a complete recording chain emulation.

Highlights
  • Virtual bass amplifier
  • Overdrive/distortion circuit
  • VCA compressor
  • Six-band graphic equalizer
  • Noise gate
  • Recording chain emulation
Features
Read full description

The most modern bass tones are characterized by a dynamic and complex sound obtained using different tools and recording techniques. For this reason Nembrini Audio has decided to create the Blackice Beta Gamma Bass Amplifier plugin based on modern-classic 900 watt bass guitar head and complete it with a virtual recording chain worthy of the best recording studios. This innovative bass amplifier combines a custom tuned overdrive/distortion circuit, a studio-grade VCA compressor and a flexible six band graphic equalizer. In the amp section you can blend the clean signal with the incredible Beta Gamma Distortion circuit that can morphs from tight and defined overdrive to raw and brutal distortion. A custom VCA style compressor allows you to optimize the bass signal before hitting the six band graphic equalizer carefully tuned to sculpt your bass tone. The Blackice Beta Gamma Bass Amplifier includes a complete recording chain emulation and our custom design noise gate circuit. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect

About

PolyBud Polyrhythmic Sequencer

Create complex musical sequences with multiple polyrhythmic tracks. Control note, velocity, gate, and MIDI CC parameters with independent step lengths and rates. Route MIDI output to your favorite synths and AUv3 hosts.

Highlights
  • Multitrack polyrhythmic MIDI sequencing
  • Note and MIDI CC tracks
  • Configurable step lengths per mode
  • Independent track rates
  • Assignable MIDI channels
  • Ramp value for CC smoothing
  • AUv3 plugin support
Features
Read full description

PolyBud is a multitrack polyrhythmic AUv3 MIDI sequencer. You can add multiple note or MIDI CC tracks to the each pattern. The note tracks has the note, velocity, gate, ratchet, probability and randomisation modes. You can set different step lengths to the each mode which would introduce polyrhythmic variations immediately. Another great feature is the each track can run in a different rate which is great for creating unique polyrhythmic sequences. Also, you can assign different MIDI channels to the each track so that you can control multiple synths within a single PolyBud pattern. The MIDI CC tracks is great for modulating the synth parameters. You can introduce polyrhythmic modulations by setting the different step lengths and different rates to your MIDI CC tracks. Also, you can set a ramp value for smoothing up the CC value changes per step. If you set the ramp value to 0% then you can have the classic sample and hold modulation. PolyBud is a MIDI app and it don't produce any sound of its own. You need to route PolyBud's MIDI out to your audio apps in order to run PolyBud. For the AUv3 plugin, you need an AUv3 host app such as AUM, Cubase, NanoStudio, ZenBeats, BeatMaker, apeMatrix etc.

Screenshots

Blackice Beta Gamma1 screens
PolyBud Polyrhythmic Sequencer4 screens

Verdict

The call

The clearest difference is price: PolyBud Polyrhythmic Sequencer at $5.99 against Blackice Beta Gamma's $19.99. PolyBud Polyrhythmic Sequencer also leads on update cadence (every 2 weeks vs every 4 months) and rating (4.9 vs 4.7). On review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Blackice Beta Gamma costs $19.99 and PolyBud Polyrhythmic Sequencer $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PolyBud Polyrhythmic Sequencer holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 9 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Blackice Beta Gamma ships an update every 4 months, PolyBud Polyrhythmic Sequencer every 2 weeks. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Blackice Beta Gamma versus PolyBud Polyrhythmic Sequencer: the parameters behind the verdict, then further details
ParameterBlackice Beta GammaPolyBud Polyrhythmic Sequencer
Price$19.99$5.99 — better
Rating4.7 (9 ratings)4.9 (9 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings99
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1513.0 — better
Further details — not scored
Size30 MB7 MB
Age rating4+4+
DeveloperNembrini AudioCem Olcay

Customer experience

Blackice Beta Gamma

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PolyBud Polyrhythmic Sequencer

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Blackice Beta Gamma

No in-app purchases

None

PolyBud Polyrhythmic Sequencer

No in-app purchases

Questions

Is Blackice Beta Gamma free?
Blackice Beta Gamma costs $19.99, with no in-app purchases.
Is PolyBud Polyrhythmic Sequencer free?
PolyBud Polyrhythmic Sequencer costs $5.99, with no in-app purchases.
Which has better reviews, Blackice Beta Gamma or PolyBud Polyrhythmic Sequencer?
PolyBud Polyrhythmic Sequencer is rated higher. Blackice Beta Gamma averages 4.7 out of 5 from 9 ratings, while PolyBud Polyrhythmic Sequencer averages 4.9 from 9 ratings.
Do Blackice Beta Gamma or PolyBud Polyrhythmic Sequencer have ads?
Neither Blackice Beta Gamma nor PolyBud Polyrhythmic Sequencer shows ads.
Which is updated more often, Blackice Beta Gamma or PolyBud Polyrhythmic Sequencer?
Blackice Beta Gamma ships an update every 4 months, and PolyBud Polyrhythmic Sequencer every 2 weeks. Most recently, Blackice Beta Gamma was updated on October 13, 2026 and PolyBud Polyrhythmic Sequencer on October 15, 2026.

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