Comparison

PolyBud Polyrhythmic Sequencer vs ChaosArp

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

Head to head
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.

About

ChaosArp

This music app generates complex and dynamic MIDI patterns using advanced algorithms. It offers a unique rhythm event feature and variance control for extensive customization, allowing users to create evolving musical sequences.

Highlights
  • Arpeggiator and step sequencer modes
  • Rhythm event feature with 13 algorithms
  • Pitch and rhythm variance control
  • Scale quantizer
  • Randomizable velocity and duration
  • 4 performance buttons
Features
Read full description

Introducing ChaosArp, the next-level MIDI arpeggiator/step sequencer designed to transform your musical ideas into intricate, dynamic patterns with a unique twist. ChaosArp is not just any arpeggiator; it's a powerhouse tool that uses the same advanced algorithms as LoAdKer to modulate pitch, rhythm, velocity, and duration, creating evolving, complex but high musical patterns that breathe life into your music. Dive into the heart of your creativity with ChaosArp's innovative ‘rhythm event’ feature, which allows you to explore a variety of rhythmic modifications. From repeaters to stretchers and rests for extra space and emphasis—ChaosArp has it all. Each one of these rhythm events can be assigned to any of the 6 available slots, offering limitless possibilities. Fine-tune your sonic exploration with the innovative ‘variance’ control - which goes one step beyond the simple ‘probability’ control that most arpeggiators have. Adjusting this setting for either pitch or rhythm (or both) will vary the character of the generated sequences, from fairly minimalistic to completely chaotic, thus opening up a world of endless variations. Elevate your music production today with ChaosArp and unleash patterns that inspire! Features: - Two modes: arpeggiator and stepper - 1-16 steps - Scale quantizer, never miss a note again! - Variable rate, from 1/128 to 4 beats - 3 arpeggiator modes (up, down, up/down) - 3 stepper modes (forward, backward, ping-pong) - 1 to 4 octaves range - Latch mode - Pitch randomizer with probability and variance control and random octave - Rhythm event selector with probability and variance control - 6 assignable rhythm event slots - 13 rhythm event algorithms, including repeaters, stretchers, and rests - Repeat, stretch, and repeat rest probability controls for further customization of the rhythm event algorithms - Randomizable velocity and duration with variable range - 4 performance buttons that temporarily override the probabilities of pitch, rhythm, velocity, and duration - Automatable parameters

Screenshots

PolyBud Polyrhythmic Sequencer4 screens
ChaosArp4 screens

Verdict

The call

PolyBud Polyrhythmic Sequencer and ChaosArp both sit at 4.9 stars, but that hides the real split: 100% of PolyBud Polyrhythmic Sequencer's written reviews are positive against 83% of ChaosArp's. ChaosArp's advantage is price ($3.99 vs $5.99). On rating, ratings volume, update cadence and ads 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

PolyBud Polyrhythmic Sequencer costs $5.99 and ChaosArp $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for PolyBud Polyrhythmic Sequencer against 4.9 for ChaosArp. Both are backed by a comparable volume of ratings — 9 and 9 respectively. Written reviews are what separate them: 100% of PolyBud Polyrhythmic Sequencer's written reviews are positive against 83% of ChaosArp's.

UpkeepUpdate frequency

PolyBud Polyrhythmic Sequencer ships an update every 3 weeks, ChaosArp fortnightly. The most recent releases landed on September 29, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 8 level
PolyBud Polyrhythmic Sequencer versus ChaosArp: the parameters behind the verdict, then further details
ParameterPolyBud Polyrhythmic SequencerChaosArp
Price$5.99$3.99 — better
Rating4.9 (9 ratings)4.9 (9 ratings)
Positive reviews100.0% of reviews — better83.3% of reviews
Number of ratings99
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size7 MB16 MB
Age rating4+4+
DeveloperCem OlcayAxart Labs OU

Customer experience

PolyBud Polyrhythmic Sequencer

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

ChaosArp

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

PolyBud Polyrhythmic Sequencer

No in-app purchases

None

ChaosArp

No in-app purchases

Questions

Is PolyBud Polyrhythmic Sequencer free?
PolyBud Polyrhythmic Sequencer costs $5.99, with no in-app purchases.
Is ChaosArp free?
ChaosArp costs $3.99, with no in-app purchases.
Which has better reviews, PolyBud Polyrhythmic Sequencer or ChaosArp?
PolyBud Polyrhythmic Sequencer and ChaosArp are both rated 4.9 out of 5 on the App Store, from 9 and 9 ratings respectively.
Do PolyBud Polyrhythmic Sequencer or ChaosArp have ads?
Neither PolyBud Polyrhythmic Sequencer nor ChaosArp shows ads.
Which is updated more often, PolyBud Polyrhythmic Sequencer or ChaosArp?
PolyBud Polyrhythmic Sequencer ships an update every 3 weeks, and ChaosArp fortnightly. Most recently, PolyBud Polyrhythmic Sequencer was updated on September 29, 2026 and ChaosArp on September 24, 2026.

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