A590DSP vs trx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A590DSP
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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 “Connect” icon in left corner of bottom. Amplifier will be connected to App automatically. 4.DIY you preferred sound and then click “Save to AMP” icon to save. Or click “ Save to Phone” to save. Note： 1.Do not exit app during saving and do not turn off power supply, program may be shut down caused by this.
trx
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trx-control is not a standalone app. It requires a trx-control(7) installation with a running trxd(8) daemon that has WebSockets enabled. The app connects to trxd(8) using a WebSockets and displays all transceivers and extensions that have been configured for client access. The trx-control app is mainly used by radio amateurs to operate transceivers and other hamradio related hardware. Please note that in order to use the callsign lookup feature, a valid QRZ.com subscription is needed.
Screenshots
Verdict
The clearest difference is update cadence: A590DSP at every 5 weeks against trx's every 23 months. A590DSP also leads on iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
A590DSP ships an update every 5 weeks, trx every 23 months. The most recent releases landed on September 28, 2026 and September 23, 2026 respectively.
| Parameter | A590DSP | trx |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 30 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | 杏生 卢 | micro systems |
In-app purchases
A590DSP
No in-app purchases
trx
No in-app purchases
