DumberKit: Calculator
Calculator, unit and currency converter for keypad phones
新版本 1.1.0
• New currency converter with the European Central Bank's rates, works offline with the last ones
• No more "fake version" warnings
• The selected dialog button is easier to see
• No more "fake version" warnings
• The selected dialog button is easier to see
A calculator, unit converter and currency converter for keypad phones like the Qin F21, Dumber Mini or Doov R77 Pro. There are no on-screen buttons: you type the calculation straight on the keypad and press OK for the result. Touch is switched off inside the app, so nothing gets pressed by accident in your pocket.
Keys
• 0–9 – type numbers
• * – add an operator, press it again for the next one (+ − × ÷)
• Hold * – a palette of symbols laid out like the keypad: ^, √, parentheses, %, ±
• # – decimal point
• OK or Call – show the result
• Back – delete the last character; hold it to clear everything
• ↑ / ↓ – go through the history
• ← / → – switch between Calculator, Unit converter, Currency converter and Settings
Features
• The usual order of operations and exact decimals (0.1 + 0.2 = 0.3)
• History like a paper tape, cleared when you close the app
• Unit converter for length, area, volume, mass, temperature, time, speed, pressure and energy, in both directions
• Currency converter with about 30 currencies at the European Central Bank's rates, works offline with the last ones
• Copy the result, or take a converted value over to the calculator
• System, light, dark, dark red and custom themes, a keypad-friendly color picker, blue or any other icon color
• No ads, no tracking; internet only for the ECB's currency rates
Based on Fossify Calculator (GPL-3.0), keypad input inspired by Calc-U-Later.
Keys
• 0–9 – type numbers
• * – add an operator, press it again for the next one (+ − × ÷)
• Hold * – a palette of symbols laid out like the keypad: ^, √, parentheses, %, ±
• # – decimal point
• OK or Call – show the result
• Back – delete the last character; hold it to clear everything
• ↑ / ↓ – go through the history
• ← / → – switch between Calculator, Unit converter, Currency converter and Settings
Features
• The usual order of operations and exact decimals (0.1 + 0.2 = 0.3)
• History like a paper tape, cleared when you close the app
• Unit converter for length, area, volume, mass, temperature, time, speed, pressure and energy, in both directions
• Currency converter with about 30 currencies at the European Central Bank's rates, works offline with the last ones
• Copy the result, or take a converted value over to the calculator
• System, light, dark, dark red and custom themes, a keypad-friendly color picker, blue or any other icon color
• No ads, no tracking; internet only for the ECB's currency rates
Based on Fossify Calculator (GPL-3.0), keypad input inspired by Calc-U-Later.
捐赠
版本
尽管下面提供了 APK 安装包的下载选项，但你应该注意，以这种方式安装将不会收到更新通知，这是一种不太安全的下载方式。 我们建议你安装使用 F-Droid 客户端。
下载 F-Droid-
arm64-v8aarmeabi-v7ax86x86_64该版本需要 Android 8.0 及以上版本。
此包由原始开发者构建并签名，并保证对应于此源代码 tarball。
-
arm64-v8aarmeabi-v7ax86x86_64该版本需要 Android 8.0 及以上版本。
此包由原始开发者构建并签名，并保证对应于此源代码 tarball。
新版本 1.0.0
First release: calculations typed straight on the keypad with the usual order of operations, a symbol palette on a held *, a history you can go through with up / down, and the unit converter and settings in tabs switched with left / right.