2012 has come to a close. Time to highlight the year’s best new mobile productivity apps.

Here is my list of the best mobile productivity apps of 2012. There are apps for Android, iOS, and Windows Phone. All of these apps are either new or major updates. Nearly all the apps are free.

CloudOn

CloudOn brings Microsoft Office to your iPhone and iPad and links it to your Box, Dropbox, Google Drive, and SkyDrive accounts. Create, review and edit Office documents. Built-in Adobe Reader and File Viewer lets you open and view a wide variety of document formats, including PDF, JPG, PNG, GIF, and more. Available on Android, iOS. Price: Free.

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CallFlakes

CallFlakes is an app to follow-up important calls. After each call, the app offers seven follow-up options, including email, text message, social network sharing, schedule a meeting, and set a reminder. App also provides Facebook Caller ID. Available on Android. Price: Free.

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Wunderlist 2

Wunderlist 2 is a simple to-do list and task management app that is now native for Android and iOS. The previous version was an HTML5 app. The new app offers expanded features, including push notifications and reoccurring tasks, as well as smoother and speedier functionality. Available on Android, iOS. Price: Free.

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Maluuba

Maluuba is a voice-assistant app for Android. Find exactly what you’re looking for with Maluuba search. Organizer features allow you to set alarms, create reminders and add events to your calendar. Social functions let you share with friends on Facebook, Twitter, and Foursquare. Available on Android. Price: Free.

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Paper

Paper is a simple and elegant drawing tool for the iPad. Capture your ideas as sketches, diagrams, illustrations, notes, or drawings — and share them across the web. Stream pages to Tumblr, send them over email, or share pages with your friends on Facebook and Twitter. Available for iOS. Price: App is free; buy additional tools from the in-app store.

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Google Search

In October, Google updated its search app with Voice Search, allowing users to ask questions by voice and get spoken responses. The app is now a direct competitor to Apple’s Siri search. Voice Search is a feature of Google Search app for iPhone, BlackBerry, and Nokia S60 V3 phones. If you have an Android phone, the Voice Search app is available in Google Play. Available on Android, iOS, Windows Phone. Price: Free.

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Drafts

Drafts is a quick and easy way to capture and share text. Open the app and get a blank draft ready to type. Get text down quickly — decide what to do with it later. Send text to Twitter, Facebook, email, SMS, a calendar event. Quickly save it to Dropbox or Evernote, or forward it to other apps, such as OmniFocus, Things, The Hit List, Byword, Sparrow and more. Available for iOS. Price: $2.99.

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Pocket

Pocket lets you save and view articles, videos and more. Use Pocket when you discover an interesting article, video, or web page, but don’t have time to view it. Once it's in Pocket, it's on your phone, tablet or computer. Read or watch later, when you have time. Available on Android, iOS. Price: Free.

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Khan Academy

Khan Academy is an app that allows you to view Khan Academy’s complete library of over 3,500 videos. Learn almost anything for free. It covers a massive number of topics, including K-12 math, science topics such as biology, chemistry, and physics, and even the humanities with playlists on finance and history. Available on iOS. Price: Free.

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Any.DO

Any.DO is the popular Android to-do list app that is now available on iPhone. In addition to its clean and simple interface, it features gesture navigation, voice-to-text recognition, auto-predictive text, seamless cloud sync, time and location reminders, notes, repeating tasks, calendar view, and more. Available on Android, iOS. Price: Free.