# isxynth vs FuncBud Math Sequencer & Synth

The clearest difference is rating: FuncBud Math Sequencer & Synth at 4.9 against isxynth's 3.7. FuncBud Math Sequencer & Synth also leads on update cadence (every 5 days vs every 34 months) and price ($3.99 vs $7.99). isxynth's advantage is review sentiment (100% vs 67%) and iOS requirement (11.0 vs 13.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

isxynth costs $7.99 and FuncBud Math Sequencer & Synth $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FuncBud Math Sequencer & Synth holds the better App Store score, 4.9 against 3.7. Both are backed by a comparable volume of ratings — 3 and 7 respectively. Written reviews complicate that: 100% of isxynth's written reviews are positive against 67% of FuncBud Math Sequencer & Synth's, so the app with the better star average is not the one people write more warmly about.

isxynth ships an update every 34 months, FuncBud Math Sequencer & Synth every 5 days. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | isxynth | FuncBud Math Sequencer & Synth |
| --- | --- | --- |
| Price | $7.99 | **$3.99** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/isxynth/id6450951503/reviews) | **[4.9 (7 ratings)](https://appshunter.io/ios/app/funcbud-math-sequencer-and-synth/id6502771916/reviews)** |
| Number of ratings | 3 | **7** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Size | 8 MB | 14 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexey Nadzharov](https://appshunter.io/developer/729549192) | [Cem Olcay](https://appshunter.io/developer/523633853) |

## What reviewers say

### 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


### FuncBud Math Sequencer & Synth

[App page](https://appshunter.io/ios/app/funcbud-math-sequencer-and-synth/id6502771916)

Generate musical sequences using mathematical functions. Build and chain formulas to create complex, evolving melodies within a chosen key and scale. Offers conditional logic and random generation for unique musical patterns.

**Highlights:** Mathematical function builder, Sequence chaining and repetition, Conditional and random functions, Key, scale, and octave control, Adjustable sequencer parameters, MIDI output, AUv3 plugin support

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

**In-app purchases:** none


## Frequently asked questions

### Is isxynth free?

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

### Is FuncBud Math Sequencer & Synth free?

FuncBud Math Sequencer & Synth costs $3.99, with no in-app purchases.

### Which has better reviews, isxynth or FuncBud Math Sequencer & Synth?

FuncBud Math Sequencer & Synth is rated higher. isxynth averages 3.7 out of 5 from 3 ratings, while FuncBud Math Sequencer & Synth averages 4.9 from 7 ratings.

### Do isxynth or FuncBud Math Sequencer & Synth have ads?

Neither isxynth nor FuncBud Math Sequencer & Synth shows ads.

### Which is updated more often, isxynth or FuncBud Math Sequencer & Synth?

isxynth ships an update every 34 months, and FuncBud Math Sequencer & Synth every 5 days. Most recently, isxynth was updated on September 28, 2026 and FuncBud Math Sequencer & Synth on September 21, 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.*