To keep pace in today’s breakneck business world, you must join the apps revolution. Whether you are rocking an iPhone or a Droid or a Blackberry, you’ll find thousands of apps tailored to your needs. Here are some of DW’s favorites.

Square, www.squareup.com

Process credit card payments from anywhere using your iPhone, iPad, or iPod Touch with Square’s free card-reader accessory. An intuitive interface and a single universal fee (2.75 percent on each transaction), with no monthly charges or contracts, makes the app easy to use for individual contractors, freelancers, and small businesses.

Evernote, www.evernote.com

Do you ever feel frustrated because your information is scattered everywhere? Get organized and stay on top of tasks with Evernote, a productivity app that allows you to keep track of notes, voicemail, photos—pretty much everything.

Bump, http://bu.mp

Fist bumps are no longer just for athletes. This app allows iPhone and Android users to share files, photos, contact information, apps, and other files simply by bumping their phones (or the backs of their hands) together.

MightyMeeting, http://app.mightymeeting.com

Upload presentations and videos to the cloud, then access them from anywhere on your phone or tablet with this powerful demonstration tool. Users can also connect mobile devices to a wide-screen projector.

MasterLock Vault, www.masterlockvault.com

Do you have so many different passwords that remembering them seems harder than memorizing a Shakespeare sonnet? You can relax with MasterLock Vault, which stores all your passwords—as well as any other confidential information—on the cloud, accessible from anywhere.

Cisco WebEx, www.webex.com/apple

You can host your next meeting from the beach. Cisco and WebEx have teamed up to create an app for secure online meetings straight from your iPhone.

LinkedIn, www.linkedin.com

Whether you are trying to find new business opportunities for your company or a new job, LinkedIn has become as essential for business as Facebook is for your personal life.