# TubeSound vs UPISketch4

The clearest difference is price: TubeSound at Free against UPISketch4's $11.99. UPISketch4's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 16.0). On ads and device support there is nothing between them.

TubeSound is free to download; UPISketch4 costs $11.99 up front. TubeSound sells 1 one-off in-app purchase. UPISketch4 asks for nothing beyond the download.

## The numbers

| Metric | TubeSound | UPISketch4 |
| --- | --- | --- |
| Price | **Free** | $11.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 42 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bartosz Paprzycki](https://appshunter.io/developer/1882313902) | [Rodolphe Bourotte](https://appshunter.io/developer/1333253948) |

## What reviewers say

### TubeSound

[App page](https://appshunter.io/ios/app/tubesound/id6760015018)

This app emulates the warm sound of classic vacuum tubes for your audio. It offers 23 modeled tube circuits, from subtle harmonic coloration to amplifier-inspired saturation. Advanced controls allow for deep customization of tube behavior and aging.

**Highlights:** 23 modeled vacuum tube circuits, Subtle harmonic coloration, Pro Mode for advanced control, Tube aging simulation, AUv3 plugin support, Custom preset saving

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Version | $5.99 | one-time |


### UPISketch4

[App page](https://appshunter.io/ios/app/upisketch4/id6761500631)

**In-app purchases:** none


## Frequently asked questions

### Is TubeSound free?

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

### Is UPISketch4 free?

UPISketch4 costs $11.99, with no in-app purchases.

### Do TubeSound or UPISketch4 have ads?

Neither TubeSound nor UPISketch4 shows ads.

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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.*