IC DICTIONARY is a free IC component finder app that will help you in finding all the information of the IC components that you need. You can search by the IC's category, subcategory, or manufacturer.

The best thing about this app is that you can download all the datasheets for offline use.

If you have a PIC Microcontroller, you can find the datasheet for it easily. You can also find a lot of information about Arduino and other microcontrollers. You can find books about electronics as well.

This app is not only for finding the datasheet, but also for finding the related books.