# PCADSP vs VDSP 8.4 AMP MK I

The clearest difference is update cadence: VDSP 8.4 AMP MK I at every 3 weeks against PCADSP's every 3 months. VDSP 8.4 AMP MK I also leads on iOS requirement (12.0 vs 14.0). 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.

PCADSP ships an update every 3 months, VDSP 8.4 AMP MK I every 3 weeks. The most recent releases landed on October 25, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | PCADSP | VDSP 8.4 AMP MK I |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 4 MB | 4 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saga Audio Equipment Co., Ltd.](https://appshunter.io/developer/1182856667) | [Maslim Djanuanto](https://appshunter.io/developer/1521794441) |

## What reviewers say

### PCADSP

[App page](https://appshunter.io/ios/app/pcadsp/id6504428795)

**Features:** macOS Compatibility

**In-app purchases:** none


### VDSP 8.4 AMP MK I

[App page](https://appshunter.io/ios/app/vdsp-84-amp-mk-i/id6740846281)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PCADSP free?

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

### Is VDSP 8.4 AMP MK I free?

VDSP 8.4 AMP MK I is free to download, with no in-app purchases.

### Do PCADSP or VDSP 8.4 AMP MK I have ads?

Neither PCADSP nor VDSP 8.4 AMP MK I shows ads.

### Which is updated more often, PCADSP or VDSP 8.4 AMP MK I?

PCADSP ships an update every 3 months, and VDSP 8.4 AMP MK I every 3 weeks. Most recently, PCADSP was updated on October 25, 2026 and VDSP 8.4 AMP MK I on November 2, 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.*