# SOLO [Nr.19] vs BLEASS Dragonfly

The clearest difference is price: SOLO [Nr.19] at Free against BLEASS Dragonfly's $7.99. SOLO [Nr.19] also leads on update cadence (every 4 months vs every 24 months). BLEASS Dragonfly's advantage is in-app purchases (none vs 1) and rating (4.8 vs 4.4). On ratings volume, ads and device support there is nothing between them.

SOLO [Nr.19] is free to download; BLEASS Dragonfly costs $7.99 up front. SOLO [Nr.19] sells 1 one-off in-app purchase. BLEASS Dragonfly asks for nothing beyond the download.

BLEASS Dragonfly holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 7 and 19 respectively. Written reviews point the same way: 67% of SOLO [Nr.19]'s written reviews are positive against 75% of BLEASS Dragonfly's.

SOLO [Nr.19] ships an update every 4 months, BLEASS Dragonfly every 24 months. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SOLO [Nr.19] | BLEASS Dragonfly |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/solo-nr19/id884781236/reviews) | **[4.8 (19 ratings)](https://appshunter.io/ios/app/bleass-dragonfly/id1580935730/reviews)** |
| Number of ratings | 7 | **19** |
| Positive reviews | 66.7% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 24 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#194** |
| Size | 60 MB | 27 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [apeSoft](https://appshunter.io/developer/464660782) | [BLEASS](https://appshunter.io/developer/1220444177) |

## 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 |


### BLEASS Dragonfly

[App page](https://appshunter.io/ios/app/bleass-dragonfly/id1580935730)

**Currently charting:** #194 Top Paid · Music (US App Store)

This audio effect plugin offers a unique approach to tremolo, allowing music producers to add dynamic modulation to synths, vocals, and melodies. It syncs tremolo effects with input frequencies, MIDI notes, or sidechained signals for creative sonic textures.

**Highlights:** Pitch tracking for self or sidechain modes, MIDI input for precise triggering, Manual rate and amplitude control, Adjustable smoothing, stereo, attack, and release, Wild mode for saturation and waveshaping, Animated visualization of effect rate

**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 BLEASS Dragonfly free?

BLEASS Dragonfly costs $7.99, with no in-app purchases.

### Which has better reviews, SOLO [Nr.19] or BLEASS Dragonfly?

BLEASS Dragonfly is rated higher. SOLO [Nr.19] averages 4.4 out of 5 from 7 ratings, while BLEASS Dragonfly averages 4.8 from 19 ratings.

### Do SOLO [Nr.19] or BLEASS Dragonfly have ads?

Neither SOLO [Nr.19] nor BLEASS Dragonfly shows ads.

### Which is updated more often, SOLO [Nr.19] or BLEASS Dragonfly?

SOLO [Nr.19] ships an update every 4 months, and BLEASS Dragonfly every 24 months. Most recently, SOLO [Nr.19] was updated on November 4, 2026 and BLEASS Dragonfly on November 3, 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.*