# DSPSystem vs Green Comfort

The clearest difference is update cadence: Green Comfort at every 5 weeks against DSPSystem's every 5 months. DSPSystem's advantage is iOS requirement (13.0 vs 15.0). 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.

DSPSystem ships an update every 5 months, Green Comfort every 5 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DSPSystem | Green Comfort |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Size | 93 MB | 30 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [星忠 宁](https://appshunter.io/developer/1446136891) | [善锦 潘](https://appshunter.io/developer/1587078335) |

## What reviewers say

### DSPSystem

[App page](https://appshunter.io/ios/app/dspsystem/id6478640424)

**In-app purchases:** none


### Green Comfort

[App page](https://appshunter.io/ios/app/green-comfort/id6502970720)

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

**In-app purchases:** none


## Frequently asked questions

### Is DSPSystem free?

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

### Is Green Comfort free?

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

### Do DSPSystem or Green Comfort have ads?

Neither DSPSystem nor Green Comfort shows ads.

### Which is updated more often, DSPSystem or Green Comfort?

DSPSystem ships an update every 5 months, and Green Comfort every 5 weeks. Most recently, DSPSystem was updated on October 25, 2026 and Green Comfort on October 24, 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.*