SD vs WS ETag
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SD
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The all-in-one companion for Street Dynamics traffic devices. Connect. Configure. Collect - and get back on the road. One App - Zero Hassle • SAM family / MC360 / EZ Speed Trailers - Retrieve survey files and adjust clock settings. • Traffic Data Collector 2 (TDC 2) – Retrieve survey files, view live traffic collection, and configure recording schedules. • Pole Mounted Graphic Display (PMG) - Configuration tabs for rapid on-site setup and exports. ■ HOW IT WORKS ■ Discover & Connect - Nearby Street Dynamics products appear instantly. Pick one to view vitals like battery level, firmware version, and time settings. Troubleshoot & Setup - View device location reporting, battery status/health, and live traffic collection from the palm of your hand. Schedule & Collect - Adjust collection intervals on the fly. When ready, transfer surveys wirelessly to your mobile device. Analyze & Share - Export data files straight to email or cloud storage. No SD cards, no ladders, no wasted trips. Key Features • Real-time device dashboard (battery, memory, survey recording). • Fast wireless survey download faster and more convenient than traditional in-person data offloading. • Streamlined PMG setup and management for quick provisioning, radar tuning, and data workflows. Permissions Required • Bluetooth - Discover and communicate with SAM 3 / TDC 2 / PMG devices. • Location (When Using) - Confirm location reporting without leaving the app. • Files & Media - Save and share exported traffic surveys. Device Requirements • iPhone 8 or newer running iOS 14 or later. • A Street Dynamics SAM family / MC360 / EZ Speed / TDC 2 / PMG with current hardware.
WS ETag
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A NFC App for testing Wavesahre 2.13inch NFC-Powered e-Paper (G) and 2.9inch NFC-Powred e-Paper (G)
Screenshots
Verdict
The clearest difference is update cadence: WS ETag at every 3 weeks against SD's every 2 months. SD's advantage is iOS requirement (13.0 vs 15.6). 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.
SD ships an update every 2 months, WS ETag every 3 weeks. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.
| Parameter | SD | WS ETag |
|---|---|---|
| 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 | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 50 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Applied Concepts Incorporated | 伟标 杨 |
In-app purchases
SD
No in-app purchases
WS ETag
No in-app purchases
