# xpanel Pro vs A540DSP

The clearest difference is update cadence: xpanel Pro at every 3 months against A540DSP's every 47 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

xpanel Pro ships an update every 3 months, A540DSP every 47 months. The most recent releases landed on October 29, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | xpanel Pro | A540DSP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 47 months |
| Monetization | — | Free |
| Size | 26 MB | 26 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [国飞 黄](https://appshunter.io/developer/551302006) | [杏生 卢](https://appshunter.io/developer/1094592555) |

## What reviewers say

### xpanel Pro

[App page](https://appshunter.io/ios/app/xpanel-pro/id626137719)

**Features:** macOS Compatibility

**In-app purchases:** none


### A540DSP

[App page](https://appshunter.io/ios/app/a540dsp/id1423992250)

Control your car amplifier's audio settings, including EQ, bass, and time alignment, directly from your phone. Save and load custom sound profiles for a personalized listening experience.

**Highlights:** EQ control, Bass adjustment, Time alignment, Phase and mute settings, Filter control, Save sound settings to phone, Save sound settings to amplifier, Load sound settings from phone

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is xpanel Pro free?

xpanel Pro is free to download, with no in-app purchases.

### Is A540DSP free?

A540DSP is free to download, with no in-app purchases.

### Do xpanel Pro or A540DSP have ads?

Neither xpanel Pro nor A540DSP shows ads.

### Which is updated more often, xpanel Pro or A540DSP?

xpanel Pro ships an update every 3 months, and A540DSP every 47 months. Most recently, xpanel Pro was updated on October 29, 2026 and A540DSP on November 6, 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.*