Calculator Keyboard - Faster

Arithmetic, Advanced functions

Use the "calculator keyboard" to retain the calculation process and quickly calculate the results.
No need to switch between applications, no need to copy and paste, calculate anytime, anywhere, convenient and fast.

[Small] Less than 10 trillion
[Quick] Quick start, fast input, fast calculation
[Strong] Four operations, advanced functions

Arithmetic: 1-2 + 3 × 4 ÷ 5 = 1.4

Parentheses: 10 ÷ (1 + 2) = 3.3333

More: π-5% + e + 10 ^ 2 + sin (90 °) + ∛9 + ln (3) + 5! = 229.8815

1/5 + cos (45 °) = 0.9071

10 ÷ 4 = 2.5

Supported operations and functions:

- Arithmetic
- Brackets
- Pi π, percentage%, golden ratio ϕ, natural constant e
- Square x², cubic x³, y power x ^ y
- Square root √, cubic root ∛
- Trigonometric functions sin, cos, tan
- Inverse trigonometric functions asin, acos, atan
- Hyperbolic functions sinh, cosh, tanh
- Natural logarithm ln, constant logarithm log
- Random number rand
- e to the power of x e ^ x
- Countdown 1 / x
- Power of 10 x 10 ^ x


- Custom slide up input
- Custom toolbar
- History record
- Button sound effects
- Key vibration
- Cursor movement
- Angles and radians
- Implicit multiplication
- Retain decimal places
- Keep results only
- Long press to delete continuously
- Quick input by sliding up
- Automatically complete brackets
- Dark mode


If you have a feature you want, or other suggestions or comments, please leave a comment or email us.
If you find it useful, I look forward to you taking a minute to rate it and write two comments, useful comments and five stars will make it a bit ahead of the list, thanks!


What’s New

Version 1.3.17

Added: Adjust vibration intensity
Added: Settings of Add or Subtract a Percentage
Fixed: Flicker problem when switching between dark and light mode
Improved: History record supports multi-select summation and deletion
Improved: Button font size

Ratings and Reviews

3.9 out of 5
8 Ratings

8 Ratings

avzip ,

ipad 12.9上无法使用

ipad 12.9上无法使用,希望改为不用按等于即时出结果,如果能提供独立app就完美了

Developer Response ,


JustPractical ,

Flawless with my AAC Proloquo2Go.

It works just like it is part of Proloquo2Go, a talker app for non-verbal people. This is fantastic. Once downloaded, add the Keyboard in iOS-General-Keyboards, then go back into Proloquo2Go, briefly hold the Globe in the bottom left of the keyboard, again if a different keyboard comes up. The calculator works like any calculator, except it triggers the talker to speak the numbers. Fantastic!

flyinnnnnnnnne ,


Very creative and worth downloading

Developer Response ,

Thanks for your review!

App Privacy

The developer, 万庄 黄, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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