Cool Apps for Learning: Education Aid

Astrid
Featured with tagging, reminders, Locale plug-in, adding to calendar and setting reminders, it is a good app to keep you organised.
It also let's you keep track of your academic as well as your personal obligations.
This is the app ideal for students. It helps in managing their individual assignments with a collaborative
list function that makes it useful in group discussions. The group leader can give duties to the group members.
Good thing about it is that it is available for Android and iOS.
 Play Store Link

Hi-Q MP3 Voice Recorder
Takes taking is very crucial in learning. However, while scribbling, there's a possibility of you missing some of the notes. Hi-Q MP3 Voice Recorder takes care of that by taking recordings your classes and you also get to choose the quality. You have the option of saving the recording on your sdcard, send it to your
e-mail account or share with another device via Bluetooth. The app will also indicate how much space your current recording occupies so you can be sure you'll never be caught short of space.
Play Store Link

Mathway
This app gives you access to a wide collection of answers to trigonometry, algebra, calculus, statistics and many more other areas. What impresses me even more about this app is the fact that you don't need data connection to get the answers.
Play Store Link

Formulas Lite
It is ideally a collection of most of the most important mathematics, physics and chemistry formulas. It also features a well equipped scientific calculator as well as a basic translator.
Play Store Link

Kindle for Android
This app lets you download classes by top authors such as Leo
Tolstoy, magazines, books bringing everything at your finger tips. Its wide library provides a wide variety of books on different subjects.
Play Store Link

HF Scientific Calculator
HF Scientific Calculator is an advanced Scientific Calculator fully featured calculator with support matrix upto order 9x9, complex numbers, a graph Plotter, an advanced unit converter, simultaneous linear equation solver
upto 9 variables, polynomial equation solver which gives both real and complex solutions, keeps calculation history, all trigonometric operations, binary, decimal, octal and hexadecimal operations, ten memory locations, results history feature, constants table, inbuilt help available on the menu options.
Play Store Link