Encyclopedia by Farlex 4+

Science, World History, & More

Farlex, Inc.

Designed for iPad

    • 4.6 • 297 Ratings
    • Free
    • Offers In-App Purchases



Encyclopedia by Farlex gives you free, instant access to more than 330,000 articles, over 77,000 audio pronunciations, and 24,000 images, all from the most trusted sources, including McGraw-Hill, Harper-Collins, Columbia University Press, Cambridge University Press, and more—all in one app!

Whether you're a student, professional, or just curious about the world, this free encyclopedia app can help you find clear, in-depth articles on vast amount of topics right on your iPhone or iPad. Search multiple authoritative encyclopedias and specialty dictionaries for entries on:

Animals, plants, and the natural world
Biographies of prominent figures
+ much more…


* Search 330,000+ encyclopedia articles on any topic you can think of, all from top sources you won't find anywhere else.

* Learn by seeing: 24,000+ images, including vivid photos, diagrams, and illustrations.

* Save unlimited bookmarks to quickly access your favorite articles.

* Use native voice search to look up a word just by saying it. (With supported devices)

* See search suggestions as you type and always find what you're looking for.

* View your recent searches.

* Perform advanced searches, including "Starts with," "Ends with," "Contains," and "Wildcard."

* Adjust font size.

* Listen to 70,000+ audio pronunciations for both American and British speakers.

* Share your favorite articles via social networks, email, and text. (With supported devices)

User-friendly, comprehensive, and authoritative: Encyclopedia by Farlex is the perfect free app for students, professionals, and anyone curious about the world. This is NOT a preview or a trial version, and there is no "locked" content. Open the app on your iPhone or iPad and immediately access all content — no subscriptions required!

How do we do it?

TheFreeDictionary.com - Farlex apps have been downloaded tens of millions times across multiple platforms, with top ratings after hundreds of thousands of reviews. We work with the best publishers to bring together trusted content in the most comprehensive, authoritative dictionary apps on the market. Our flagship app is The Free Dictionary (TFD), powered by TheFreeDictionary.com. Find our other apps by searching "Dictionary by Farlex" in the App Store.

What’s New

Version 3.5

* Bugfixes

Ratings and Reviews

4.6 out of 5
297 Ratings

297 Ratings


Good value and very handy

I am learning copyediting that sometimes need to fact-check what I read. This encyclopedia becomes handy even when my smartphone isn't connected to the Internet.

Jsguero ,


I looked for over a dozen terms (from the Straight of Gibraltar, to fait accompli) picked randomly from my Encyclopedia Brittanica (hard cover), and the results we're not encouraging... It returned a roughly the-way split; no results at all, correct results, and results from an Encyclopedia from the USSR, circa 1979.

Admittedly, some of the results differed little from a more current reference, but honestly.... 1979??? From the Union of Soviet Socialists Republic??? Not the source I'm looking to as trustworthy, and, with the march of technology and available tools, the accuracy will simply continue to wither.

If I'm looking for an up to date and accurate source for research, I'm sorry, but this isn't it.

Developer Response ,

Our Encyclopedia app includes multiple sources. The one you're referring to is provided for historical interest and is clearly labeled.

Li ving ,

Knowledge is power

The foundation of success is knowing what your looking for once you find it your own your life that’s strength of your app.

App Privacy

The developer, Farlex, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer


You Might Also Like