Comparison

USB vs 水質空品檢測寶

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

USB

Features
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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

About

水質空品檢測寶

Features
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這是一個儀興科技開發的水質檢測, 空氣品質, 環境工業檢測結合微氣候數據監測的應用程式, 簡易專業的介面, 方便用戶使用了解檢測的項目及相關數據的資訊: 舉凡儀興科技開發的量測數據結合物聯網, 均適用. 水質監測最大用途在水產養殖部分, 可監測水質的數據 曲線 警報設定 清池設定還有溫度單位選項等等. 參數選擇, 設備選擇, 期間選擇 更便利使用. 空氣品質因應台灣室內空氣品質環保法規規定, 比各項參數加入 8小時或1小時平均值顯示在此應用程式上 環境工業職安方面有黑濕球溫度熱中暑監測顯示等, 均適用

Screenshots

USB4 screens
水質空品檢測寶4 screens

Verdict

The call

USB and 水質空品檢測寶 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

USB ships an update every 3 months, 水質空品檢測寶 every 6 weeks. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

ScorecardNo meaningful differences
USB versus 水質空品檢測寶: the parameters behind the verdict, then further details
ParameterUSB水質空品檢測寶
PriceFreeFree
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size201 MB41 MB
Age rating4+4+
DeveloperMerry-Link Co.,Ltd.Ju Cheng Shih

In-app purchases

None

USB

No in-app purchases

None

水質空品檢測寶

No in-app purchases

Questions

Is USB free?
USB is free to download, with no in-app purchases.
Is 水質空品檢測寶 free?
水質空品檢測寶 is free to download, with no in-app purchases.
Do USB or 水質空品檢測寶 have ads?
Neither USB nor 水質空品檢測寶 shows ads.
Which is updated more often, USB or 水質空品檢測寶?
USB ships an update every 3 months, and 水質空品檢測寶 every 6 weeks. Most recently, USB was updated on October 27, 2026 and 水質空品檢測寶 on October 30, 2026.

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