# Trope vs Fluss

The clearest difference is price: Trope at $3.99 against Fluss's $13.99. Trope also leads on chart position (#158 vs unranked). Fluss's advantage is update cadence (every 3 months vs every 34 months) and review sentiment (78% vs 64%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Trope costs $3.99 and Fluss $13.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for Trope against 4.8 for Fluss. Both are backed by a comparable volume of ratings — 38 and 71 respectively. Written reviews are what separate them: 64% of Trope's written reviews are positive against 78% of Fluss's.

Trope ships an update every 34 months, Fluss every 3 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Trope | Fluss |
| --- | --- | --- |
| Price | **$3.99** | $13.99 |
| Rating | [4.8 (38 ratings)](https://appshunter.io/ios/app/trope/id312164495/reviews) | **[4.8 (71 ratings)](https://appshunter.io/ios/app/fluss-granular-playground/id6443472888/reviews)** |
| Number of ratings | 38 | **71** |
| Positive reviews | 63.7% of reviews | **78.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Best chart rank | **#158** | — |
| Size | 39 MB | 453 MB |
| Requires iOS | 15.6 | **12** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Opal Limited](https://appshunter.io/developer/292792589) | [Bram Bos](https://appshunter.io/developer/325340444) |

## What reviewers say

### Trope

[App page](https://appshunter.io/ios/app/trope/id312164495)

**Currently charting:** #158 Top Paid · Music (US App Store)

Create evolving soundscapes by tracing abstract shapes on your screen. This app offers a darker, more introspective and atmospheric musical experience, ideal for generative music exploration. Recommended for use with headphones or external speakers.

**Highlights:** Generative soundscape creation, Interactive touch interface, Evolving musical textures, Introspective and atmospheric tone, Abstract shape tracing

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

**In-app purchases:** none

**What reviewers like**

- ✨ Generative music creation
- 🧘 Calming and meditative atmosphere
- 🎨 Visually beautiful and mesmerizing
- 🎧 Great for relaxation and sleep
- 💡 Pioneering and innovative concept

**What reviewers complain about**

- 📉 Limited user control
- 🤔 Simplistic and unimaginative (for some)
- 🔊 Random background noises intrusive
- 🎛️ Lack of sound modification options
- 💰 Perceived as expensive for simplicity

**Reported bugs**

- Does not run in background/sleep mode
- App speeds up sleep timer
- Errors about iOS 11 incompatibility
- Cannot listen and create after update
- Screen looks awful (outdated UI)

**Requested features**

- Ability to save compositions
- Option to turn off random background noises
- More control over sound parameters (attack, duration)
- User sound input option
- Recording function


### Fluss

[App page](https://appshunter.io/ios/app/fluss-granular-playground/id6443472888)

Explore granular synthesis with a tactile interface. Import, record, or live-process audio to create unique sound textures, drones, and echoes. Features kinetic sliders for dynamic modulation and a unique shimmer feedback effect.

**Highlights:** Granular synthesis engine, Import, record, or live process audio, Kinetic sliders for modulation, Shimmer feedback effect, MIDI playable, Oberheim Xpander inspired filter, Microtonal experiment support

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Innovative touch interface
- 🎶 Great for soundscapes
- ✨ Unique sound manipulation
- 🎛️ Intuitive controls
- 🎵 Highly playable instrument

**What reviewers complain about**

- 🐛 Crashes frequently
- ⚫ Black screen issue
- 🎧 No audible output
- 🎛️ Not enough control
- 😵 Too much chaos

**Reported bugs**

- Crashes with black screen
- No audible output
- App resets when put in background
- Cyan play head difficult to see on waveform

**Requested features**

- Adjustable layer field per grain
- Record from internal microphone
- More control over grain direction
- BPM settings
- Transition from clean to new sounds


## Frequently asked questions

### Is Trope free?

Trope costs $3.99, with no in-app purchases.

### Is Fluss free?

Fluss costs $13.99, with no in-app purchases.

### Which has better reviews, Trope or Fluss?

Fluss is rated higher. Trope averages 4.8 out of 5 from 38 ratings, while Fluss averages 4.8 from 71 ratings.

### Do Trope or Fluss have ads?

Neither Trope nor Fluss shows ads.

### Which is updated more often, Trope or Fluss?

Trope ships an update every 34 months, and Fluss every 3 months. Most recently, Trope was updated on October 29, 2026 and Fluss on October 30, 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.*