# Flux'n'Air vs Tuba Sim

The clearest difference is in-app purchases: Flux'n'Air at none against Tuba Sim's 2. Flux'n'Air also leads on ads (none vs shown). Tuba Sim's advantage is update cadence (every 3 months vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tuba Sim sells 2 one-off in-app purchases. Flux'n'Air asks for nothing beyond the download.

Flux'n'Air ships an update every 7 months, Tuba Sim every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flux'n'Air | Tuba Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (27 ratings)](https://appshunter.io/ios/app/tuba-sim/id6738584097/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 158 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Pranas Gudaitis](https://appshunter.io/developer/1006944190) | [Alper Kahriman](https://appshunter.io/developer/1054578352) |

## What reviewers say

### Flux'n'Air

[App page](https://appshunter.io/ios/app/fluxnair/id1006944191)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tuba Sim

[App page](https://appshunter.io/ios/app/tuba-sim/id6738584097)

Experience the authentic sound of the tuba with a feature-rich virtual instrument. Explore orchestral and enhanced sound groups, advanced tuning, and dynamic touch controls. Record and share your musical creations with an intuitive and visually appealing interface.

**Highlights:** Authentic tuba sounds, Orchestral and Orchestral-X sound groups, Microtonal tuning, Transpose adjustment, Echo and chorus effects, Sensitive play mode, Built-in recorder

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |
| Get Premium | $9.99 | one-time |


## Frequently asked questions

### Is Flux'n'Air free?

Flux'n'Air is free to download, with no in-app purchases.

### Is Tuba Sim free?

Tuba Sim is free to download, with in-app purchases available.

### Do Flux'n'Air or Tuba Sim have ads?

Tuba Sim shows ads; Flux'n'Air does not.

### Which is updated more often, Flux'n'Air or Tuba Sim?

Flux'n'Air ships an update every 7 months, and Tuba Sim every 3 months. Most recently, Flux'n'Air was updated on October 24, 2026 and Tuba Sim on October 25, 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.*