Engineering 單位流量換算 vs Unit Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engineering 單位流量換算
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Engineering 單位流量換算是專為工程師設計的專業單位換算與流量計算工具。 【核心功能】 單位換算 • 長度單位換算(公制 ↔ 英制) • 重量單位換算 • 壓力單位換算(Pa, kPa, bar, psi, atm, kg/cm²) • 溫度單位換算(°C, °F, K) • 面積單位換算(m², ft², 坪, 甲) • 空氣流量單位換算(CFM, CMS, CMH, L/s) • 水量單位換算(GPM, LPM, CMH) 流量計算 • 設備水量估計:支援多種管路材質、管徑、流速模式與壓差模式,並考慮 Hazen-Williams 粗糙係數 • 氣體風量估算:支援風管尺寸、材質、空氣密度、流速與壓差雙模式 • CDA / 氮氣 / CO2 管路流量計算:支援工業氣體、可壓縮流體計算、壅塞流判斷、標準流量與實際流量顯示 多語言支援 • 繁體中文 • English • 日本語 【適用對象】 - HVAC 工程師 - 機械工程師 - MEP 工程師 - 管路設計人員 - 設備選型人員 - 工程專業學生 【特色】 • 專業級計算公式 • 直覺的使用介面 • 免費使用,底部提供 Google AdMob 廣告 • 離線使用 • 即時計算結果 • 支援深色模式 立即下載,讓工程計算更輕鬆!
Unit Converter
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ConvertMaster is a completely free, ad-free unit converter. Launch and go. No sign-up. No data collection. All 40 categories are permanently free. No paywalls. ALL FEATURES FREE FOREVER: • 40 categories — currency, length, weight, area, volume, temperature, speed, time, pressure, energy, power, data storage, cooking, angle, fuel, force, torque and more • 200+ currencies with live exchange rates, updated hourly • Currency picker with search — find any currency instantly • Multilingual currency names (CLDR standard) • Home page ranks categories by your usage frequency • Restores your last-used category on launch • Batch convert — enter multiple values, see all results instantly • CSV export for batch results • Metric and imperial side by side • Scientific notation for extreme values • Dark mode • 100% offline (except live currency rates) No account. No sign-up. No data collection. No internet required (except live rates). Most converters limit their currency list or lock categories behind paywalls. ConvertMaster gives you everything — 200+ currencies with search, 40 categories — all for free, forever. Voluntary support available in app — optional, never nagged. No data collected. No tracking. No sharing. Your numbers, on your device only.
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Verdict
The clearest difference is in-app purchases: Engineering 單位流量換算 at none against Unit Converter's 2. Unit Converter's advantage is update cadence (every 10 days vs every 2 months) and iOS requirement (13.0 vs 17.6). On price, ads 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. Unit Converter sells 2 one-off in-app purchases. Engineering 單位流量換算 asks for nothing beyond the download.
Engineering 單位流量換算 ships an update every 2 months, Unit Converter every 10 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.
| Parameter | Engineering 單位流量換算 | Unit Converter |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 25 MB |
| Age rating | 4+ | 9+ |
| Developer | CHUNG-HSIEN YU | 磊 刘 |
In-app purchases
Engineering 單位流量換算
No in-app purchases
Unit Converter
- Unit Conversion Standard Version$2.99
- Unit Conversion Pro Edition$5.99
Questions
Is Engineering 單位流量換算 free?
Is Unit Converter free?
Do Engineering 單位流量換算 or Unit Converter have ads?
Which is updated more often, Engineering 單位流量換算 or Unit Converter?
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