iPad is popular for fun and business nowadays. You can easily watch movies, share photos, read eBooks, browse the web, and listen to your favorite music with it. Also for business people, they can also get things done without any problem, such as reading email, editing Mirosoft Word and Excel documents, accessing a Mac or Windows PC, editing web pages, etc. Here is a list of more than 20 productivity apps for iPad:

1. WebEx. Attend meetings-on-the-go with on your iPad wherever you happen to be — schedule, attend, present and go. You can enjoy all the standards of a conference meeting, streaming data, audio and even video. And for tablets with front facing cameras, you can participate in video conferences. If you don’t have a front-facing camera, you can still stream other users’ videos on your device. Price: Free.

2.Dropbox. Some tablets do not come with a USB port — or any kind of port — to upload or download files. That’s where Dropbox comes in. Install Dropbox on your iPad and access the files on any other computer that has Dropbox installed. You can simply share files between devices or share files with other users. iPad, BlackBerry PlayBook. Price: Free.

3.Air Sharing HD. Wirelessly mount your iPad as a drive and quickly load it with files, and then view, share or print your entire file system. Price: $9.99

4. Skype. Make free calls with other Skype users, call other contacts for very low rates and for tablets with a front-facing camera, make free video calls. iPad, Android Tablets, BlackBerry PlayBook. Price: Free.

5. Fuze Meeting. You can host and attend any teleconference or video conference meeting with Fuze and you can even invite other participants to the meeting that do not have a Fuze account. Fuze is compatible with Apple iWork apps and MS Office apps, PDFs, videos and other still images, so you can create and run multimedia presentations. Price: Free.

6. Intuit GoPayment. Take payments at expos, tradeshow shops and conferences with your tablet — running Intuit GoPayment. You can swipe cards with any of the compatible card reader accessories that GoPayment supports. Customers can sign a tablet’s touch screen to authorize their transactions; you can even drag and drop items into a customer’s cart using your fingertips and you can email receipts to customers at point of sale. GoPayment can sync with QuickBooks. Price: Free.

7. Square. Accept credit cards and sell your merchandise while on the go or when setting up shop at a design expo, garage sale or trunk show. You’ll receive a credit card reader from Square to process the cards. Price: Free.

8. Bento. FileMaker Pro’s robust database app for the iPad offers 25 built-in database templates, so you can manage contacts, track projects and expenses, plan events, follow items sold and inventory numbers and make to do lists. Price: $4.99.

9. Evernote. An all-in-one note-taking app. You can create text, photos, and even record audio notes; sync all your notes to your desktop PC or Mac; create text notes on images, where notes even contain geolocation info for mapping and researching of an idea further. Price: Free

10. iWork Apps. “Pages” is the word processor. “Numbers” is the spreadsheet creator. And “Keynote” is the presentation app. When working together, they turn your iPad into a document-creating workhorse. You may never use your laptop or desktop computer again. Pages, Numbers, Keynote. Price: $9.99 each.

11. Documents To Go. Edit, create and view Microsoft Word, Excel, and PowerPoint files that used Office 2007-2010. You can also view, but cannot edit, PDFs, iWork files and Google Docs files. Price: $14.99.

12. AnyBizSoft PDF Reader for iPad. A handy app to read and manage PDF files. It offers the easiest and fastest way for you to read PDF files on iPad. It can not only help you upload your PDF files to iPad via Wi-Fi, but also assist you better organize your PDF files. If you enjoy reading on iPad, you would love this easy-to-use PDF Reader. Price: Free

13. Salesforce Mobile. Get all your Salesforce data right at your fingertips on your tablet; access all account information, track account activity and recent sales, log phone call and meeting data right after they take place and respond immediately to new leads or customer requests —wherever you are. iPad, BlackBerry PlayBook. Not available for Android Tablets. Price: Free.

14. Mashable. Take the Mashable tech coverage with you wherever you are with this official app. iPad,Android Tablets. Not available on BlackBerry PlayBook. Price: Free.

15. Analytics HD. Track all your Google Analytics data with this handy app. It features full screen charts, multiple accounts, quick access to “Today” and “Yesterday” reports and much more. iPad, Price: $6.99. Google Analytics Widget for Android Tablets, Price: Free. Not available on BlackBerry PlayBook.

16. Roambi Visualizer. Take your business report data from Excel, Google Docs, Salesforce and dozens more, and turn that data into interactive visual, up-to-the-minute charts to help crunch your analytics numbers. iPad. Not available on Android or BlackBerry. Price: Free

17. PollDaddy. Create, manage and take customer surveys right on your iPad and gather crucial data immediately while you are at expos, design shows or conferences. iPad. Price: Free.

18. Blogger. Keep your Blogger blog up to date at a coffee shop, on a train or while running errands, with this official app. Android Tablets, Price: Free. BlogPress for iPad, Price: $1.99.

19. Twitter. The official Twitter app for your tablet. Tweet, send direct messages, share photos and videos and keep up with customer support through your Twitter feed and on the go. Price: Free.

20. Google Mobile App. One of the most multi-faceted search tools around. Search by taking a picture with your tablet camera and let the image recognition software return relevant results. Translate text in multiple languages. Perform standard Google searches with your voice, and speak your query — staying hands-free — and find businesses nearby without having to type in your current location. Price: Free.

21. Google Translate. Translate text into 57 different languages. Use the voice recognition software, speak the text and have it translated into 15 different languages. Listen to accurate pronunciation of translated text in 23 different languages and copy and paste translated text and send it as an email. Price: Free.