Calculator HD Pro Lite 4+

Basic & Scientific Calc

Cider Software LLC

    • 4.6 • 46.8K Ratings
    • Free



A colorful calculator with BIG buttons, LOTS of features, and fully customizable. This version is ad-supported.

・Dual-line display - shows the input and result at the same time
・History tape - saves every calculation, time and date stamped
・Memory buttons - shows its value on the display
・Percentage and backspace button
・Scientific functions
・6 layouts (3 portrait, 3 landscape)
・10 color themes
・Multi-line input for really long equations
・Automatic scientific formatting
・Label any calculation in the history tape
・E-mail a calculation or the entire history tape
・VoiceOver accessibility
・iOS 9 Split View
・3D Touch


・Swipe down to see the history tape
・Tap & hold on the result to copy
・Tap & hold on the input to move the cursor, copy, paste, convert to E-notation


・Font Size
・Bold Font
・Color Theme
・Light Tape Background
・Show Layout Button
・Allowable Layouts
・Show Memory Buttons
・Backspace Button (Solid, Arrow)
・Replace ÷ Button With /
・Replace E Button With Hidden, EE, 00, or 000
・Show Thousands Separators
・Minimum Decimal Digits
・Maximum Decimal Digits
・Equals Repeat
・Left-Handed Mode

URL Scheme: calculatorhdprofree://

What’s New

Version 4.11.5

- Miscellaneous improvements.

Ratings and Reviews

4.6 out of 5
46.8K Ratings

46.8K Ratings

Navigator917 ,

Excellent, full-featured calculator

This is the only calculator I've found that has everything I need and more. I use the five-key memory, automatic constant, and paper tape almost every day. The running total on chain calculations is a nice touch. The calculator also has a pretty thorough list of advanced math functions.

The only thing on my wish list is an "ANS" key. Some scientific calculators automatically store the results of the last calculation in a memory register and display the number when the ANS (answer) key is pressed. That is useful if you need to make intermediate calculations before you use the prior answer, and would be a faster alternative to getting the number from the tape. The existing "=" key is longer than it needs to be. Part of that could be used for an ANS key, which would make an already great calculator even better.

Ddraj ,

I absolutely love it!!!

It's the best calculator out there, it's free and I use it every day!! What I love about it the most, is that you see every key you type and you can erase one or more digits if you make a mistake, without retyping everything all over again. Also, the result appears automatically without pressing the 'equal' key. If you do press it, the result will be recorded and you can see it anytime later on the tape. I highly recommend it to everybody and I insisted that all my students downloaded it. It's THAT good!!!! Great job and THANK YOU VERY MUCH for creating this app and offering it for free! Thank you!!

Escape510 ,

My Go Calculator!!

It's an awesome app! Sooo functional! There are 3 great layout choices. What I love most is that whatever function you're doing the answer is showing as you enter the last number! No need to touch the "=" button. You can see the numbers you've entered as you add, sub, etc. Great for checking multiple numbers. How convenient! They thought of the most basic needs for FREE and the ads don't bother me!

App Privacy

The developer, Cider Software LLC, 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

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

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