SD401 vs TopCam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SD401
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SD401 is a quality control system. The SD401 system consists of an iPhone with SD401 app and external SH7 Reader hardware (purchased separately). The SD401 app provides the GUI for displaying data. Data is received via Bluetooth communications from the SH7 Reader. Displayed data is in numeric form with the addition of alarm “LEDS” for each data point. The number of displayed data points is configured via a setup screen, with password control. Also, the alarm LEDS are configured with limits set for each data point. A data value within limits will be shown with a “green” LED and value outside limits with a “red” LED. Additional SH7 Reader readings such as temperature and battery voltage can be displayed in the app.
TopCam
Connect your mobile device to your car's data recorder to preview, record, and save videos and pictures. Easily download your captured media locally for sharing with friends.
- Real-time preview
- Video recording
- Picture capture
- Download to local storage
- Sharing functionality
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Welcome to download TopCam-Pro applications, mobile phones connected to the vehicle traveling data recorder, real-time preview, recording video, pictures, and can be downloaded to the local, sharing good friends
Screenshots
Verdict
The clearest difference is update cadence: TopCam at every 6 weeks against SD401's every 5 months. TopCam also leads on iOS requirement (12.0 vs 15.5). 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.
SD401 ships an update every 5 months, TopCam every 6 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.
| Parameter | SD401 | TopCam |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.5 | 12.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | Owen Brown | Shenzhen City, Zhi Yang Software Co., Ltd. |
In-app purchases
SD401
No in-app purchases
TopCam
No in-app purchases
