# PolyBud Polyrhythmic Sequencer vs isxynth

The clearest difference is rating: PolyBud Polyrhythmic Sequencer at 4.9 against isxynth's 3.7. PolyBud Polyrhythmic Sequencer also leads on update cadence (every 2 weeks vs every 34 months) and price ($5.99 vs $7.99). isxynth's advantage is iOS requirement (11.0 vs 13.0). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

PolyBud Polyrhythmic Sequencer costs $5.99 and isxynth $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PolyBud Polyrhythmic Sequencer holds the better App Store score, 4.9 against 3.7. Both are backed by a comparable volume of ratings — 9 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

PolyBud Polyrhythmic Sequencer ships an update every 2 weeks, isxynth every 34 months. Both last shipped on October 18, 2026.

## The numbers

| Metric | PolyBud Polyrhythmic Sequencer | isxynth |
| --- | --- | --- |
| Price | **$5.99** | $7.99 |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/polybud-polyrhythmic-sequencer/id1624211288/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/isxynth/id6450951503/reviews) |
| Number of ratings | **9** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 34 months |
| Monetization | Paid | Paid |
| Size | 7 MB | 8 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cem Olcay](https://appshunter.io/developer/523633853) | [Alexey Nadzharov](https://appshunter.io/developer/729549192) |

## What reviewers say

### PolyBud Polyrhythmic Sequencer

[App page](https://appshunter.io/ios/app/polybud-polyrhythmic-sequencer/id1624211288)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### isxynth

[App page](https://appshunter.io/ios/app/isxynth/id6450951503)

This music effect plugin allows spectral cross synthesis and morphing between two input signals. It separates noise and tone components, offering controls for blending, freezing, and time-based delays. Gestures on controls can be recorded and played back for dynamic sound shaping.

**Highlights:** Spectral cross synthesis, Morphing between two input signals, Noise and tone component blending, Freeze control for spectral blurring, 3-second delay lines per input, Gesture recording and playback

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PolyBud Polyrhythmic Sequencer free?

PolyBud Polyrhythmic Sequencer costs $5.99, with no in-app purchases.

### Is isxynth free?

isxynth costs $7.99, with no in-app purchases.

### Which has better reviews, PolyBud Polyrhythmic Sequencer or isxynth?

PolyBud Polyrhythmic Sequencer is rated higher. PolyBud Polyrhythmic Sequencer averages 4.9 out of 5 from 9 ratings, while isxynth averages 3.7 from 3 ratings.

### Do PolyBud Polyrhythmic Sequencer or isxynth have ads?

Neither PolyBud Polyrhythmic Sequencer nor isxynth shows ads.

### Which is updated more often, PolyBud Polyrhythmic Sequencer or isxynth?

PolyBud Polyrhythmic Sequencer ships an update every 2 weeks, and isxynth every 34 months. Most recently, PolyBud Polyrhythmic Sequencer was updated on October 18, 2026 and isxynth on October 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*