The Leading Observational Study Software

Mangold INTERACT - Collect, Process, and Analyze Observational Data from Audio/Video Recordings

Mangold INTERACT Software

Mangold INTERACT is the most comprehensive software for collecting, processing and analyzing observational research data from audio/video recordings.

Mangold INTERACT software on MacOS

The INTERACT Software is used by more than 80% of all Top-100 Universities worldwide.

View audio, video and data streams synchronously and collect, process and analyze observational data in a single tool.

Thanks to its innovative technology, INTERACT is the most comprehensive software for collecting, processing and analyzing behavioral data.

Proven for more than 30 years in thousands of research projects worldwide.

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„Working with the Mangold team has revolutionized the way we run studies and analyze data ...

We've always been interested in the inter-relations between physiological systems, behavior and emotion in dyadic contexts. However, in the past we were largely estimating these relations over long periods of time. 

Using the INTERACT software system has allowed us to efficiently characterize the precise time course of behaviors and emotions, their inter-relations within an individual child and between children during dyadic interactions. We continually receive personalized customer support and know that the Mangold team will help us generate solutions to complex problems.“

Prof. Dr. Heather Henderson, University of Waterloo, Department of Psychology, Social Development Lab, Waterloo, ON, Canada

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Unlimited Coding and Transcription Possibilities - Yet easy to use

Start collecting and analyzing data right away. INTERACT is optimized for ease of use, yet packed with functionality. All major functions are within 2 to 3 mouse clicks. 

With INTERACT's revolutionary video technology you can use almost any standard video format. You can even use video captured with your smartphone in INTERACT.

Mangold INTERACT software on MacOS screenshot
Mangold INTERACT software coding system screenshot

Unlimited Coding Options

Use individual coding systems of almost unlimited size and hierarchical complexity in INTERACT.

In INTERACT you can use and combine all common observation methods:

  • Event sampling
  • Pinpoint sampling
  • Time sampling
  • Ad libitum sampling
  • Continuous sampling
  • Instantaneous sampling
  • Scan sampling
  • One-zero sampling
  • and variants...


INTERACT can be used in a variety of ways, not only to collect codes, but also to collect transcripts. The collected data can be exported to a speech analysis system or visualized within INTERACT as word cloud diagrams.

mangold interact software wordcloud
Mangold INTERACT software time line chart screenshot

Date-Time Diagram

See at a glance which behavioural codes occur at which times with the INTERACT Time-Line Chart.

Free Trial Version


The State-Space-Grid (Lewis, Lamey & Douglas, 1999) creates a graphical landscape of dyadic interactions that is important for measuring and understanding synchrony and flexibility in dynamic systems in activities or interpersonal relationships. 

Originally used for research on socio-emotional outcomes (acting, feeling, and thinking), the state-space grid in Mangold INTERACT software also has great value for analyzing any type of process, e.g., in teaching research (understanding teacher-student interactions or state changes in whole classrooms), ergonomics or usability research (understanding processes and workflows and measuring their efficiency), or similar applications.

The Mangold INTERACT State-Space-Grid implementation allows to render the collected codes in a time-dynamic diagram. This is very helpful to understand state changes and thus whole processes.

Mangold INTERACT software state space grid screenshot

Visualize and analyze your data in INTERACT with the State-Space-Grid. Interactively see the temporal context of your collected data.

Mangold INTERACT software box plot diagram

Box Plots with INTERACT

Use the box plot functionality to further analyze your coded data and prepare it for publications with just a few clicks.

Free Trial Version

Lag Sequential Analysis

Easily visualize the numerical data of a lag sequence analysis of selected Classes and Codes with INTERACT.

mangold interact software lag sequential analysis diagram
Mangold INTERACT analysis workflow screenshot

Unlimited Analysis Options

Use the extensive data restructuring functions and analysis options in INTERACT and gain new insights from originally simple observation data. 

  • Descriptive statistics
  • Classical sequence analysis
  • Search for code sequences / patterns
  • Contingency analysis
  • Observer agreement
  • and much more...

Analyze and Visualize the data Your Way

The possibilities of INTERACT are limitless, because the entire software is designed to be open in every aspect: Use your own coding systems, import and export all your collected data anytime you want. 

If something is missing, there is a good chance that you can write your own analysis module for it, based on the large amount of INTERACT functionalities.

mangold interact software chord diagram

What Experts say about the Mangold INTERACT Software

Ruth Feldman

Ruth Feldman, Ph.D.

"Our experience with Interact was excellent, the software is friendly, intuitive to use, gives precise results and has all needed functions to calculate both simple and complicated behavioral patterns.  We will certainly continue to use Mangold in our current and future research. " 

Ruth Feldman, PhD is the Simms-Mann Professor of Developmental Social Neuroscience at the Interdisciplinary Center (IDC) Herzlia with joint appointment at Yale Child Study Center.

Recipient of 2020 EMET prize, Israel’s highest prize in arts and sciences.

Best Female Scientist 2022,

Expertscape World Expert in Parent-Child Relations, expertscape World Expert in Psychoanalytic Theory.

and more...

Real Users - Real Opinions

"The INTERACT Software is flexible, user friendly and rich in its capabilities. But, more importantly, the support staff at Mangold is unparalleled."
Prof. Ph.D. Catherine Tamis-LeMonda,
New York University, US
"INTERACT from Mangold proved to be extremely useful and efficient for detailed videotape analysis of individual differences in the great apes."
Dr. Jana Uher,
Freie Universität Berlin, DE
"I rely extensively on Mangold INTERACT for my research on primate behavior. The program is flexible, convenient, and so helpful in facilitating collaboration across colleagues and institutions."
Stephanie Musgrave, Ph.D. - Assistant Professor
Department of Anthropology - University of Miami
"Mangold INTERACT staff are lovely to deal with. 
Fast, efficient, and friendly. I think the level of customer support is something that is VERY important, and the Mangold team nails it."
Dr. Shane Rogers,
Edith Cowan University, Australia
"INTERACT performed well within the use of our coding team and was a clear enhancement to our collaborative analysis of the video data"
Zafer Bilda, Ph.D.,
Sidney, Australia
"INTERACT has played the essential missing role in reflecting on the cognitive analysis of human interface reasoning to build more intelligent human interfaces between user and computer."
Hamid Fujita, Ph.D. Professor,
"Mangold provides fast, exceptional support. 
Over the years I have received outstanding assistance from the Mangold team, including development of personalized solutions tailored to my unique workflow."
Stephanie Musgrave, Ph.D. - Assistant Professor
Department of Anthropology - University of Miami
"...Mangold INTERACT on the other hand, runs smooth as butter in all aspects - playing videos, coding, statistics, and visualizations."
Dr. Shane Rogers,
Edith Cowan University, Australia

Learn more about Scientific Video Coding

Discover the Invisible Through Tool-Supported Scientific Observation

A Best Practice Guide to Video-Supported Behavior Observation

Abstract: Observation appears to be a simple skill. It is assumed to be something everyone does every day since early childhood, and thus, it seems to be an easy and well-trained skill. However, observation of behavior with a scientific outcome is far from easy

The significant difference between everyday observation and scientific observation and the enormous chances specific software tools can create in this field will be discussed in this document.

Download: Discover the Unseen
video coding paper

INTERACT Tutorials


Take a look at the video tutorials and get to know some of the most important aspects of INTERACT in just a few minutes. 


Mangold INTERACT screenshot

Get More Information about INTERACT


I have more questions, and can I get a trial version?

Sure! If you briefly tell us your project requirements, we will be happy to send you the appropriate INTERACT information.


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