# A544DSP vs HB II DSP

The clearest difference is update cadence: HB II DSP at fortnightly against A544DSP's every 5 weeks. A544DSP's advantage is iOS requirement (9.0 vs 15.6). 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.

A544DSP ships an update every 5 weeks, HB II DSP fortnightly. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | A544DSP | HB II DSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 21 MB | 3 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杏生 卢](https://appshunter.io/developer/1094592555) | [APEX Italy](https://appshunter.io/developer/1446565085) |

## What reviewers say

### A544DSP

[App page](https://appshunter.io/ios/app/a544dsp/id1670363148)

**Features:** macOS Compatibility

**In-app purchases:** none


### HB II DSP

[App page](https://appshunter.io/ios/app/hb-ii-dsp/id6753644572)

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

**In-app purchases:** none


## Frequently asked questions

### Is A544DSP free?

A544DSP is free to download, with no in-app purchases.

### Is HB II DSP free?

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

### Do A544DSP or HB II DSP have ads?

Neither A544DSP nor HB II DSP shows ads.

### Which is updated more often, A544DSP or HB II DSP?

A544DSP ships an update every 5 weeks, and HB II DSP fortnightly. Most recently, A544DSP was updated on November 3, 2026 and HB II DSP on October 28, 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.*