The AlleyDog Psychology Glossary app features more than 6,000 (and growing) of the most common psychology terms, explained in easy-to-understand, plain English.
Instead of definitions written with confusing psychological jargon, we explain each term simply and concisely, using a conversational style. We add new terms and definitions regularly - you'll always get access to the latest terms at no charge.

Our plain English glossary is one of the primary reasons AlleyDog has been one of the most popular online psychology resources since 1998.


- Created by experts in Psychology, including Ph.D. psychologists.

- More than 6,000 definitions written in plain English to help you understand faster and more fully.

- Simple, streamlined, intuitive interface.

- Automated one-letter searching - as soon as you start typing, results appear.

- Didn't find a term you need defined? Contact us right from the app and we'll do our best to add it.

- Works on the iPhone and iPad.

- Works offline as well as online. You will need to be online to get new terms.

What’s New

Version 2.0.0

Performance improvements.

Ratings and Reviews

5.0 out of 5
3 Ratings

3 Ratings

Suzy0805 ,

Helps me 90% of my psychology class

I aced all my test since I found this app.

DJ Flowerz ,

Awesome source for definitions

Well-written explanations of psychology terms. Easy to understand, with real-world examples. A great resource.

Ncrider2013 ,


Definitions of psychology terms that actually make sense. Awesome!

App Privacy

The developer, AlleyDog LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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