Any college kid or soon-to-be college kid needs an arsenal of textbook apps to help them shop for the best bargains, find the free ebooks and textbooks, and sell and trade when the semester ends. These apps should fit the ticket. But don’t wait until the fall of freshman year to download them. There’s no time like the present to create a folder and start adding these 10 textbook apps to your mobile devices.

1. BigWords

Nobody likes shopping for textbooks at the college bookstore.BigWords operates by the premise that students prefer to shop for textbooks on smaller and smaller computers in the palms of their hands and like to shop using their smartphone or tablets. They claim to help students about $1,000 annually on average.

2. Chegg

Chegg brings you millions of textbooks and solutions packed into one glorious app! Rent textbooks, get instant access (when available), and read eTextbooks on your iPhone, iPad or iPod and Android devices. The app allows students to easily search for textbooks by title, author, ISBN or by scanning a barcode. Rent or buy physical textbooks and while the book is on the way, get 7-day FREE instant access to the eTextbook to get started on classwork immediately.

3. Kno

Experience your same books, only smarter. The Kno™ app, now a part of Intel® Education, enhances the learning experience by bringing content, from one of the largest eTextbook catalogs in the industry, to life with interactive features that drive student engagement, and learning success in the classroom. The added features allow students to synchronize all content and notes across all devices. With over 70 features, Kno allows students to create flashcards, search for answers within the books instantly, watch videos and bring external content into the books.

4. CourseSmart

The CourseSmart eTextbooks app is a perfect complement to a CourseSmart eTextbook subscription. Students can benefit from the advantages of mobile learning–leaving their backpacks and laptops behind. The key features include: access to eTextbooks for quick reference, a keyword search to help locate information, synchronized notes and highlights along with a true digital equifalent of your textbook.

5. BuyBackTextbooks

This app makes selling back your old books & textbooks both fun & profitable. How it works is this; simply install the app and then grab some books you want to sell. With the app you can easily scan the barcode on the back on the book, once it beeps their system goes to work. In a matter of seconds you’ll see how much each store will pay for the book.

6. Cash4Books

Sell used books and college textbooks with the Cash4Books.net app. Scan book barcodes and get instant Cash4Books price quotes from anywhere. Have your books shipped to them for free and get fast cash back. Get a free quote on any book or textbook.

7. Half.com

eBay’s app helps students quickly find great deals on textbooks (and more fun stuff of course) heading into the school year. It’s the second eBay app to integrate barcode scanning technology and allows users to scan the barcodes on items to find the best deals on textbooks, DVDs, video games and more. The app provides Half.com buyers access to over 80 million active listings from more than 700,000 sellers. Half.com also uses the “Buying Wizard”. Based on the user’s criteria for item condition and seller feedback, the Buying Wizard identifies the lowest cost items and shipping discounts (if applicable) to help shoppers get the best deals on Half.com.

8. CampusBooks

With the free CampusBooks apps, everything you love about CampusBooks.com’s powerful money-saving search engine and price-comparison tool is now with you on the go! Wherever you are, you’re just a few touches away from finding the best deals when buying and selling textbooks. The app finds the cheapest books when buying, gets the highest prices when selling, in-app barcode scanning, and uses GPS tracking technology to display local results.

9. Yuzu

Yuzu™ by Barnes & Noble lets you organize, read, and annotate your textbooks right in the palm of your hand—making the experience of learning simple, gratifying, and much easier on your back. Go to the Yuzu store to find your textbooks and download them to your iPad®. You can also access them using an internet-connected Mac or Windows PC. That way, you’ll be able to follow along in class on your iPad and pick up where you left off on your home computer or even in the campus computer lab.

10. Kindle

The Kindle app is optimized for the iPad, iPhone, and iPod touch, giving users the ability to read Kindle books, newspapers, magazines, textbooks and PDFs on a beautiful, easy-to-use interface. You’ll have access to over 1,000,000 books in the Kindle Store plus hundreds of newspapers and magazines. Skip the campus bookstore and search for the best book bargains on Amazon.