SOWCH vs USB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SOWCH
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SOWCH-ST940 為碩成科技開發之電梯專業操作檢修軟體，包括電梯即時狀態監控、叫車操作盤、故障記錄、電梯參數設定等功能
USB
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APP用來註冊設定USB-921 地震儀, 安裝地震儀用戶, 可接收【P波警報】,【特快報】,【地震快報】,【最大震度】推播通知
Screenshots
Verdict
The clearest difference is update cadence: USB at every 3 months against SOWCH's every 23 months. SOWCH's advantage is iOS requirement (11.2 vs 13.0). 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.
SOWCH ships an update every 23 months, USB every 3 months. The most recent releases landed on September 5, 2026 and August 18, 2026 respectively.
| Parameter | SOWCH | USB |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 23 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.2 — better | 13.0 |
| Further details — not scored | ||
| Size | 24 MB | 201 MB |
| Age rating | 4+ | 4+ |
| Developer | SOW CHENG TECHNOLOGY CO., LTD. | Merry-Link Co.,Ltd. |
In-app purchases
SOWCH
No in-app purchases
USB
No in-app purchases
