Cool Grader is a productivity app designed, tested, and certified by classroom teachers. It makes the tedious process of grading students' work easier and eliminates errors in scoring. It also helps you with classroom instructions with extra functions like unit conversion. App features: - Grader: * 1-500 problems * Quick Table for fast computation of raw score * Point deduction and addition for partial credit * Copy to clipboard for sharing information between apps * Automatic calculation - Conversions: * Accurately converts between measurement units in various categories, including: Angle, Area, Energy/Heat, Length/Distance, Mass/Weight, Power, Pressure, Speed, Temperature, Time, Volume * Detailed information page for each unit, including: - Definition - Current usage - Equivalencies with other units - Historical background - Notes containing more explanations or examples - Detail from Internet - Google and Bing search * Conversion table to compare units with their equivalent values * Search function to quickly find units or unit categories - Calculator: * Easy entry, editing and correction of numeric input * Clipboard support for exchanging numbers with other functions * Display of operation sequences with full detail at the touch of a button * Arithmetic and special-function operations * Memory (store, recall, minus, plus, clear) * Double-precision floating-point accuracy, with scientific notation - Customization: * Specify preferred colors * Set up and customize background image from camera or saved pictures For more information, visit:

Available on

Mobile device

Mobile device

Version notes

Version number:

Version 2.3.4 enhancements: * Bug fix in auto-scroll button to avoid timer-related problem

System Requirements

OS Windows 10 Mobile, Windows Phone 8.1, Windows Phone 8
Architecture ARM
OS Windows 10 Mobile, Windows Phone 8.1, Windows Phone 8
Architecture ARM

Additional info

Published by
MJ App Factory

Approximate download size
1.8 MB


This app can
Use your rear- or front-facing camera
Use information about your device
Use the photos in your media library
Use your phone

Get this app while signed in to your Microsoft account and install on up to ten Windows 10 devices.

Language supported
English (United States)

Publisher Info
Publisher Website

Ratings and reviews

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Platform: Mobile

Grader works well ... Extras are nice, like calculator and conversions ... Very useful for both grading and instruction :)

3 out of 4 people found this helpful.




Platform: Mobile

This has made the process of grading so much faster than before! I love how easy it is to calculate partial credit using the copy and paste functions and the calculator. The grade table is useful to quickly let students see how they did on self-graded assignments. It is also fun to update the background using my own pictures and change the font color to match my own tastes. As far as increasing efficiency so that I can spend less time grading, this app gets an A+ from me and was money well spent!

2 out of 3 people found this helpful.




Platform: Mobile

Really is a "cool" grader. Much better than the old-fashioned paper grader and cheaper too! I am a teacher and like being able to easily change the number of problems and quickly reset for the next paper. There's also a place to add or deduct extra points and a built in calculator too!

2 out of 2 people found this helpful.




Platform: Mobile

Love it!

2 out of 3 people found this helpful.




Platform: Mobile

Works great

3 out of 4 people found this helpful.



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