# XTDSP vs SUBAMPBT

XTDSP and SUBAMPBT are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | XTDSP | SUBAMPBT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 17 MB | 18 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Guang Dong Sound Power](https://appshunter.io/developer/1760446092) | [Formosa Audiomate](https://appshunter.io/developer/989721407) |

## What reviewers say

### XTDSP

[App page](https://appshunter.io/ios/app/xtdsp/id6754833446)

**Features:** macOS Compatibility

**In-app purchases:** none


### SUBAMPBT

[App page](https://appshunter.io/ios/app/subampbt-1/id6776954079)

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

**In-app purchases:** none


## Frequently asked questions

### Is XTDSP free?

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

### Is SUBAMPBT free?

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

### Do XTDSP or SUBAMPBT have ads?

Neither XTDSP nor SUBAMPBT 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.*