YEJING Smart vs SOS Viewer
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
YEJING Smart
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YEJING Smart contributes to the intellectualization of industrial lighting 1γRemote centralized control to control the operation of lamps anytime and anywhere; 2γSet various application scenarios and customize energy-saving optimization schemes; 3γThe energy-saving optimization results are controlled in real time and the analysis data are clear at a glance.
SOS Viewer
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Smart Orchard System (Viewer) is a user-friendly app designed for durian tree investors and enthusiasts. It allows users to effortlessly monitor and access detailed information about the health, growth, and status of their durian trees in real time. With its intuitive interface, you can track tree conditions, review investment performance, and explore key orchard data with ease. Stay informed and ensure your durian investments thrive with Smart Orchard System (Viewer) βyour smart solution for smarter farming.
Screenshots
Verdict
The clearest difference is update cadence: SOS Viewer at fortnightly against YEJING Smart's every 25 months. YEJING Smart's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support 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.
YEJING Smart ships an update every 25 months, SOS Viewer fortnightly. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.
| Parameter | YEJING Smart | SOS Viewer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 25 months | Fortnightly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 β better | 15.6 |
| Further details β not scored | ||
| Size | 151 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Suzhou Yejing Lighting Energy Saving Technology Co., Ltd | Tech Tree Sdn Bhd |
In-app purchases
YEJING Smart
No in-app purchases
SOS Viewer
No in-app purchases
Questions
Is YEJING Smart free?
Is SOS Viewer free?
Do YEJING Smart or SOS Viewer have ads?
Which is updated more often, YEJING Smart or SOS Viewer?
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