HSA vs DM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HSA
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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.
DM
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DM-Tech Wi-Fi delivers the tools to control your home WiFi experience. Designed to be simple and easy to use, the app enables you to - Update your SSID/network name or WiFi password - Enable guest WiFi for visitors - Update WiFi settings to tune performance - Run bandwidth tests to validate speeds - View and assign devices to profiles to enable parental controls and rate limits - Use Parental Controls to set “off-time” for users
Screenshots
Verdict
The clearest difference is update cadence: DM at every 3 weeks against HSA's every 2 months. HSA's advantage is iOS requirement (9.0 vs 13.4). 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.
HSA ships an update every 2 months, DM every 3 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | HSA | DM |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 6 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | 杏生 卢 | Thaea, LLC |
In-app purchases
HSA
No in-app purchases
DM
No in-app purchases
