SD401 vs ScanBridge
Price, ratings, monetisation and update history for both apps, side by side β 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 βLEDSβ 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 βgreenβ LED and value outside limits with a βredβ LED. Additional SH7 Reader readings such as temperature and battery voltage can be displayed in the app.
ScanBridge
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Configure. Collect. Scan Check. Take control of your Unitech barcode scanners. 1. Configure: Configure symobology and settings for your scanners, and the ability to auto synchronize settings across different scanners. 2. Collect: Collect barcode data with the comprehensive keyboard wedge function with state of the art data editing capabilities. 3. Scan Check: 1-to-1, 1-to-N and rule-based barcode validation tool offers the ability to quickly check whether barcodes match each other. 4. Profile Management: Create multiple data output profiles for use with different apps. Quickly switch between profiles for different data collection requirements.
Screenshots
Verdict
The clearest difference is iOS requirement: ScanBridge at 13.0 against SD401's 15.5. On price, update cadence, ads and in-app purchases 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.
SD401 ships an update every 5 months, ScanBridge every 3 months. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.
| Parameter | SD401 | ScanBridge |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 3 months β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 15.5 | 13.0 β better |
| Further details β not scored | ||
| Size | 25 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Owen Brown | Unitech Electronics Co., Ltd., |
In-app purchases
SD401
No in-app purchases
ScanBridge
No in-app purchases









