# 环宇易流 vs PCADSP

The clearest difference is ads: PCADSP at none against 环宇易流's shown. PCADSP also leads on update cadence (every 3 months vs every 7 months). 环宇易流's advantage is iOS requirement (10.0 vs 14.0). On price, 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.

环宇易流 ships an update every 7 months, PCADSP every 3 months. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 环宇易流 | PCADSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 3 months** |
| Size | 92 MB | 4 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京环宇易流科技有限公司](https://appshunter.io/developer/1119492972) | [Saga Audio Equipment Co., Ltd.](https://appshunter.io/developer/1182856667) |

## What reviewers say

### 环宇易流

[App page](https://appshunter.io/ios/app/id1119492973)

**Features:** macOS Compatibility

**In-app purchases:** none


### PCADSP

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 环宇易流 free?

环宇易流 is free to download, with no in-app purchases.

### Is PCADSP free?

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

### Do 环宇易流 or PCADSP have ads?

环宇易流 shows ads; PCADSP does not.

### Which is updated more often, 环宇易流 or PCADSP?

环宇易流 ships an update every 7 months, and PCADSP every 3 months. Most recently, 环宇易流 was updated on October 9, 2026 and PCADSP on October 4, 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.*