# DSP vs HSA

The clearest difference is update cadence: HSA at every 3 weeks against DSP's every 9 months. HSA also leads on iOS requirement (12.0 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.

DSP ships an update every 9 months, HSA every 3 weeks. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | DSP | HSA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 62 MB | 4 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guang Dong Sound Power](https://appshunter.io/developer/1760446092) | [杏生 卢](https://appshunter.io/developer/1094592555) |

## What reviewers say

### DSP

[App page](https://appshunter.io/ios/app/dsp-x/id6743121086)

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

**In-app purchases:** none


### HSA

[App page](https://appshunter.io/ios/app/hsa-dsp31probus/id6745184520)

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

**In-app purchases:** none


## Frequently asked questions

### Is DSP free?

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

### Is HSA free?

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

### Do DSP or HSA have ads?

Neither DSP nor HSA shows ads.

### Which is updated more often, DSP or HSA?

DSP ships an update every 9 months, and HSA every 3 weeks. Most recently, DSP was updated on October 19, 2026 and HSA on October 9, 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.*