A544DSP vs DSP
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
A544DSP
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After connecting App to Car Amplifier with Integrated DSP, EQ, BASS, TIME ALIGNMENT, PHASE, MUTE, FILTER , SAVE SOUND SETTING TO PHONE, SAVE SOUND SETTING TO AMPLIFIER, LOAD SOUND SETTING FROM PHONE, RCA OUTPUT etc could be controlled through this App. How to use: 1.Install App and turn on power of car 2. Turn on Bluetooth on your iPhone 3,Open App and wait for around 5 seconds, then click βConnectβ icon in left corner of bottom. Amplifier will be connected to App automatically. 4.DIY you preferred sound and then click βSave to AMPβ icon to save. Or click β Save to Phoneβ to save. NoteοΌ 1.Do not exit app during saving and do not turn off power supply, program may be shut down caused by this.
DSP
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DSP-X is an app debugging software for car audio devices, which adjusts various parameters of the device through Bluetooth connection.
Screenshots
Verdict
The clearest difference is update cadence: A544DSP at every 5 weeks against DSP's every 9 months. A544DSP also leads on iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
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, DSP every 9 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.
| Parameter | A544DSP | DSP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks β better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 21 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | ζη ε’ | Guang Dong Sound Power |
In-app purchases
A544DSP
No in-app purchases
DSP
No in-app purchases
