# SOLO [Nr.19] vs FuncBud Math Sequencer & Synth

The clearest difference is price: SOLO [Nr.19] at Free against FuncBud Math Sequencer & Synth's $5.99. FuncBud Math Sequencer & Synth's advantage is rating (4.9 vs 4.4) and in-app purchases (none vs 1). On review sentiment, ratings volume, ads and device support there is nothing between them.

SOLO [Nr.19] is free to download; FuncBud Math Sequencer & Synth costs $5.99 up front. SOLO [Nr.19] sells 1 one-off in-app purchase. FuncBud Math Sequencer & Synth asks for nothing beyond the download.

FuncBud Math Sequencer & Synth holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 7 and 8 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

SOLO [Nr.19] ships an update every 4 months, FuncBud Math Sequencer & Synth every 6 days. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SOLO [Nr.19] | FuncBud Math Sequencer & Synth |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/solo-nr19/id884781236/reviews) | **[4.9 (8 ratings)](https://appshunter.io/ios/app/funcbud-math-sequencer-and-synth/id6502771916/reviews)** |
| Number of ratings | 7 | **8** |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | **Free** | Paid |
| Size | 60 MB | 14 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [apeSoft](https://appshunter.io/developer/464660782) | [Cem Olcay](https://appshunter.io/developer/523633853) |

## What reviewers say

### SOLO [Nr.19]

[App page](https://appshunter.io/ios/app/solo-nr19/id884781236)

This application is designed for musicians to study and perform a specific algorithmic composition. It digitally implements the original analog setup for a complex musical piece, allowing soloists to create polyphonic music through feedback systems. It provides two distinct performance versions for study.

**Highlights:** Digital implementation of analog setup, Algorithmic composition performance, Feedback system for polyphonic music, Study and live performance tool, Two performance versions included

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SOLO  Nr.19  Live Performance | Free | one-time |


### 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 SOLO [Nr.19] free?

SOLO [Nr.19] is free to download, with in-app purchases available.

### Is FuncBud Math Sequencer & Synth free?

FuncBud Math Sequencer & Synth costs $5.99, with no in-app purchases.

### Which has better reviews, SOLO [Nr.19] or FuncBud Math Sequencer & Synth?

FuncBud Math Sequencer & Synth is rated higher. SOLO [Nr.19] averages 4.4 out of 5 from 7 ratings, while FuncBud Math Sequencer & Synth averages 4.9 from 8 ratings.

### Do SOLO [Nr.19] or FuncBud Math Sequencer & Synth have ads?

Neither SOLO [Nr.19] nor FuncBud Math Sequencer & Synth shows ads.

### Which is updated more often, SOLO [Nr.19] or FuncBud Math Sequencer & Synth?

SOLO [Nr.19] ships an update every 4 months, and FuncBud Math Sequencer & Synth every 6 days. Most recently, SOLO [Nr.19] was updated on October 14, 2026 and FuncBud Math Sequencer & Synth on October 15, 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.*