# JAX ONE XModulator Extended vs TowerDub

The clearest difference is price: TowerDub at $9.99 against JAX ONE XModulator Extended's $12.99. JAX ONE XModulator Extended's advantage is iOS requirement (14.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

JAX ONE XModulator Extended costs $12.99 and TowerDub $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 19, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | JAX ONE XModulator Extended | TowerDub |
| --- | --- | --- |
| Price | $12.99 | **$9.99** |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/jax-one-xmodulator-extended/id6505114652/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Paid | — |
| Size | 32 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jens Guell](https://appshunter.io/developer/1195004865) | [Adrien de Quatrebarbes](https://appshunter.io/developer/6806206384) |

## What reviewers say

### JAX ONE XModulator Extended

[App page](https://appshunter.io/ios/app/jax-one-xmodulator-extended/id6505114652)

This app offers a classic ring modulator effect with an analog-modeled unison oscillator for sound modulation and sonic refinement. It functions as a creative sound design tool and special effect processor with a unique 3D modular rack interface.

**Highlights:** Analog modeled ring modulator, Unison oscillator modulation source, Creative sound design tool, Special effect processor, 3D modular rack user interface, AUv3 app extension

**Features:** macOS Compatibility

**In-app purchases:** none


### TowerDub

[App page](https://appshunter.io/ios/app/towerdub/id6806206082)

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

**In-app purchases:** none


## Frequently asked questions

### Is JAX ONE XModulator Extended free?

JAX ONE XModulator Extended costs $12.99, with no in-app purchases.

### Is TowerDub free?

TowerDub costs $9.99, with no in-app purchases.

### Do JAX ONE XModulator Extended or TowerDub have ads?

Neither JAX ONE XModulator Extended nor TowerDub shows ads.

### Which is updated more often, JAX ONE XModulator Extended or TowerDub?

JAX ONE XModulator Extended ships an update every 4 days, and TowerDub every 4 days. Most recently, JAX ONE XModulator Extended was updated on October 19, 2026 and TowerDub on October 23, 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.*