unitCalc vs Parallel

unitCalc 是一款適用於 iPhone 與 iPad 的計算機與台灣常用單位換算工具。 主要功能： • 四則運算、平方、立方、平方根、立方根及記憶功能 • 十萬至兆等大數快捷鍵 • 重量、長度、面積與貨幣換算 • 單位選項可橫向捲動，支援直向與橫向操作 • 匯率快取，可於離線時使用最後一次成功取得的資料 換算單位： • 重量：公克、公斤、台斤、台兩、英磅、盎司 • 長度：公尺、公分、台尺、台寸、英尺、英寸 • 面積：台坪、台畝、台分、台甲、平方公尺、公頃、平方英尺 • 貨幣：台幣、美元、日圓、歐元、英鎊、韓元、越南盾、港幣、人民幣 貨幣換算主要採用臺灣銀行對台幣現金賣出匯率；無現金匯率時使用即期賣出匯率。臺灣銀行服務無法使用時，App 會使用中央銀行官方資料計算參考匯率，並顯示來源與資料時間。 匯率資料僅供換算參考，不代表任何金融機構的實際交易報價；實際匯率應以交易時相關金融機構公告為準。unitCalc 為獨立開發工具，與臺灣銀行及中央銀行沒有隸屬、合作、代理或背書關係。

Parallel. Calculate more. DO MORE AT ONCE Why calculate one thing at a time? Run 2, 3, or 4 calculations side by side, and arrange them however you like with drag and drop. No more memorizing one result just to punch it into the next — it's all already on screen. That's the whole idea behind the name. ONLY WHAT YOU NEED No bloat, no clutter. Scientific mode covers exactly what you'd expect from a real scientific calculator — nothing more, nothing less. The converter covers 57 world currencies plus Bitcoin, Ethereum, and a handful of other crypto. Simple, on purpose. YOUR HISTORY, YOUR CALL Parallel only saves what you choose to keep — each calculation with your own note attached, kept separate for standard and scientific mode. Share any result straight from history, wherever you need it. Prefer to keep it private? Lock it all behind Face ID or your passcode. MADE TO FEEL RIGHT Swipe between calculator, scientific mode, and converter. Feel every tap with haptic feedback. Add a widget to your Home Screen, or pull it up instantly from Quick Menu. MAKE IT YOURS Free with the Classic theme. Unlock 10 named themes, a set of distinctive fonts, and the 4-screen layout with Parallel Pro — a one-time purchase, no subscription, ever. Your calculator has never looked this good. No ads. No data collected. Available in 34 languages.