A whole new way to practice therapy

Reach into your clients’ lives, keep them motivated and engaged in between sessions, and help them practice the skills for a meaningful life.

Try 30 days without risk. Cancel anytime.

Keep Your Clients Engaged.
Create Lasting Change

A letter from Dr. Steven C. Hayes and Drs. Gijs Jansen

There is a sense of uncertainty at the end of every therapy session.

Whenever our clients leave the room, we cannot be sure to have reached them with their problems.

We cannot be certain whether they will follow through with their exercises, whether they will apply what they have learned in therapy, or, more generally, whether the session has had the intended impact.

Only when clients return to their own life – where they are confronted by their daily routines and everyday challenges – does it become clear whether our work has been effective.

And unfortunately, this is exactly where progress often falls apart.

Outside of session, clients often…

  • …struggle to translate lessons from therapy to everyday life.
  • …fail to practice the skills that bring meaningful change.
  • …misapply important exercises and relevant techniques.
  • …resist changing their established habits and routines.
  • …become disengaged from the therapeutic process.

This is not to blame the clients.

Rather, it is our responsibility as professionals – whether as therapists, counselors, social workers, behavior analysts, coaches, or other change practitioners – to empower our clients through their daily challenges, and provide them with the right tools and knowledge to create meaningful change.

Only, we are limited in our ability to serve by outdated methods and antiquated models.

Serving Clients to the Best of our Abilities

For more than half a century, psychologists have been holding on to a “medicalized” understanding of human suffering.

This means any mental health problem came to be seen as an expression of an underlying disease.

If you have a certain amount of symptoms for a certain length of time, you have disorder xyz.

And so we developed scores of categorizations and put people into labeled boxes.

The Diagnostic and Statistical Manual of Mental Disorders was written, along with 400-pages of treatment protocols.

Evidence-based therapy itself became defined as symptom-focused, by-the-book interventions.

But even though the intentions might have been good, the results did not deliver what was promised.

Over the course of that half century, there is almost no evidence that we are getting better at producing outcomes.

And some of our best methods even seem to have a declining impact.

Rates of mental and behavioral health problems are skyrocketing, and people are not being helped with their individual needs and personal challenges.

Rather than treating people, the protocol-for-syndromes approach is treating disorders.

In order to provide effective therapy, we need to look beyond superficial labels and broad categorizations.

We need to look at the underlying mechanics of human suffering, and empower the individual at the source of their struggles.

We need to look at the deeper processes.


What Actually Helps Your Clients Make a Change

Over the last decade, a new vision of psychotherapy has emerged: Process-Based Therapy (PBT).

It contains a simple yet powerful idea, namely that every voice matters.

Rather than putting people into labeled boxes and treating them with broad manuals, we look at the person’s underlying processes, and start with their unique wants and individual challenges in mind.

This new process-based approach offers three important advantages:

Customize therapy to your clients’ needs

The process-based approach recognizes that individuals are unique and complex, with their own personal histories, goals, and circumstances. It emphasizes the importance of understanding the individual's specific biopsychosocial factors and tailoring interventions accordingly. By targeting individual client needs, this approach moves beyond rigid protocols and allows for more personalized and effective treatments.

Target the root causes that keep your clients stuck

Rather than relying solely on broad categorizations, the process-based approach places a strong emphasis on understanding and harnessing the underlying mechanisms of change. It seeks to identify empirically established sequences of change that occur over time and lead to desired outcomes. By focusing on these processes of change, practitioners can track progress, provide immediate feedback, and develop effective interventions.

Integrate practices from other evidence-based therapies

The process-based approach aims to integrate various evidence-based practices from different therapeutic orientations, schools, and interventions. It recognizes that effective treatments can be found across traditions and approaches, and prioritizes the individual needs of clients over rigid adherence to specific protocols. By organizing available evidence and identifying common change processes, this approach offers a more flexible and comprehensive framework for evidence-based therapy.


A Whole New Way To Practice Therapy

We are entering a new era of psychological intervention, in which we no longer put people into labeled boxes, or rely on one-size-fits-all solutions (that actually fit nobody).

Instead, we put the focus back where it matters: on the individual, in their own life.

By uncovering your clients' hidden processes, you can address their wants and needs more effectively, and facilitate change at the root level.

With treatment kernels – small exercises and interventions – you can disrupt your clients' dysfunctional patterns, nudge them in the right direction, and help them build habits that serve their personal goals and needs.

From week-to-week (and even day-by-day), you will target different processes as you adjust to your clients' progress and changing life circumstances.

This requires a different level of involvement, and a different level of care, which is simply not possible in mere 60 minute sessions.

With technological support, we can realize this process-based vision, bring mental health care into the 21st century, and help our clients more effectively than ever before.

This is a whole new way to practice therapy. 

And it is why we created PsychFlex.

Meet Your Clinical Support Team

4_PsychFlex_Sneak_Peek_Steven_C_ Hayes@2x

About Steven C. Hayes

Dr. Steven C. Hayes is an Emeritus Professor of Psychology at the University of Nevada, Reno and President of the Institute for Better Health, a nearly 50-year old charitable organization dedicated to better mental and behavioral health. He is also the author of 48 books and over 700 scientific articles, originator of Acceptance and Commitment Therapy and Relational Frame Theory, and co-founder of Process-Based Therapy and of PsychFlex.

Dr. Hayes has been President of the Association for Behavioral and Cognitive Therapies and the Association for Contextual Behavioral Science, among other scientific groups. His work has been recognized by several awards, including the Lifetime Achievement Award from the Association for Behavioral and Cognitive Therapies and the Impact of Science on Application Award from the Society for the Advancement of Behavior Analysis. A Fellow of the American Association for the Advancement of Science, he is one of the most cited psychologists in the world.


About Drs. Gijs Jansen

Drs. Gijs Jansen is one of the most prominent pioneers in Acceptance and Commitment Therapy (ACT) in the Netherlands. After specializing in ACT in 2003, he has authored 15 books, penned over 100 articles, and delivered numerous online and direct training programs. He is also a co-founder of PsychFlex.

Drs. Jansen is a faculty member at the Radboud University Nijmegen, and has contributed extensively to the development of ACT in the Netherlands, including with the creation of ACT Guide for healthcare professionals. With his expertise as a psychologist, supervisor, and ACT trainer, Jansen conducts workshops nationwide.




PsychFlex allows you to reach into your clients’ lives, keep them motivated and engaged in between sessions, and help them practice relevant skills to facilitate meaningful change.

Access powerful tools, exercises, and interventions from third-wave cognitive behavioral methods such as acceptance and commitment therapy, from process-based cognitive behavior therapy, and from a range of other evidence based methods. In exclusive training programs developed by world-class clinical experts, you can find a large variety of experiential exercises and insightful lessons to support your clients quickly and effectively. You will also gain access to educational e-learning resources to train your skills as a practitioner – whether you are a therapist, counselor, social worker, behavior analyst, coach, or other change professional.

Give your clients the app for free, and communicate through a seamless and secure connection. By sending them the right interventions and exercises – adjusted to their personal needs and individual interests – you can keep your clients motivated outside of session, and support them where it matters: in their own life. You can even build your own toolkits, and upload your favorite tools, techniques, and exercises.

Keep Your Clients Motivated. Facilitate Lasting Change


Get clinical tools and interventions

Access a vast library of powerful clinical tools, techniques, and interventions – based on Acceptance and Commitment Therapy, Cognitive Behavioral Therapy, and other evidence-based therapies. Target your clients’ needs with catered training programs, and learn new skills from world-class experts in psychological intervention. Every month, new tools and training modules will become available inside PsychFlex, to constantly enhance your ability to serve your clients.

Support your clients at home

Give your clients the app for free, and message them through a seamless and secure connection. Send tools, techniques, and interventions outside of session, and help them make progress in their own life. Add as many clients as you want, and even create your own groups.


Customize your treatment

Build your own toolkits with your favorite psychological interventions, and tailor them to your client’s individual needs – with your own texts, pictures, audios, and videos. Send them directly to their phones, where they will be immediately notified.

Support Your Clients With The Best

Get access to exclusive training programs for your clients, full of practical tools, techniques, and interventions from a wide range of evidence-based methods – developed and presented by world-class experts in psychological intervention.


Steven C. Hayes and Gijs Jansen

Teach Classic Process Based ACT


Diana Hill and Steven C. Hayes

One Minute Flex


Louise Hayes, Joseph Ciarrochi and Madeline Fraser

Teach DNA-V for Adolescents and Young Adults


Robyn Walser

ACT and Trauma


Madeline Fraser and Joseph Ciarrochi

Teach Compassion Focused Therapy


Stefan G. Hofmann and colleagues

Teach Process-Based CBT


Lance McCracken and colleagues

Teach Process-Based Therapy for Chronic Pain


Steven C. Hayes and colleagues

Teach ACT for Behavior Analysts


Kirk Strosahl, Patti Robinson, and colleagues

Teach Focused ACT for Behavioral Health

More Coming Soon...

Every month new clinical tools
will be added.

See What’s Inside The App

The tools inside PsychFlex are developed and presented by leading clinical experts. You can choose from a wide variety of experiential exercises, insightful lessons, and practical techniques – in written texts, pictures, animations, audios, and even videos.

The video below is a sample of what you can find inside PsychFlex. In this video, you will learn:

  • What happens when you try to avoid and control difficult thoughts and feelings.
  • The long term costs of escaping (or even clinging to) your experiences.
  • The central question clients should ask themselves about their control strategies.
  • Two important tips to deal with avoidance behaviors more effectively.

Keep Your Clients Engaged Outside of Session.
Facilitate Lasting Change.

Try PsychFlex one month completely risk-free

What’s included:

  • 100+ tools and resources for your clients
  • Written materials, videos, images, animations, and audios
  • Training programs by leading experts (with new material being added every month)
  • E-learning: webinars, demonstrations, and tutorials
  • Secure communication with your clients

To join, select one of the following options:

Try 30 days without risk. Cancel anytime.

PsychFlex_Payment Methods@2x

30-Day Money-Back Guarantee

To make your subscription risk-free, your purchase will be fully covered by a 30-day refund policy:

If you decide for any reason PsychFlex isn’t right for you, email the team at [email protected] within 30 days of signing up, and we will refund your entire purchase, unconditionally.


Questions and Answers

If you’re in the business of helping people, this app is an investment in becoming as effective as possible in helping your clients move toward long-term improved outcomes. If you have 200 client conversations per year, then an investment in this app is just $2 per therapy session. If the yearly subscription is out of reach, you can sign up with the monthly option and try the app for 30 days with a full money-back guarantee. In some parts of the world, systems of care allow you to charge a small fee for supporting your clients using an app, and if that applies to you it may further defray your cost.

Still got questions?

Find answers to more common questions about PsychFlex on our Frequently Asked Questions page.

If your question isn't answered there or if you are having trouble with your account, we are there for you at [email protected].


Who Should Consider This App?

PsychFlex is right for you if…

  • You’re committed to helping people create fulfilling and meaningful lives.
  • You’re new to ACT and/or PBT, and want to get support from clinical experts.
  • You’re an experienced professional and want to improve your practice with new ideas and concepts while leveraging your previous training.
  • You want to increase your clients' motivation outside of session, and support them in their everyday lives.
  • You are eager to incorporate a therapy form that will allow you to personalize your treatment, and target your clients’ biggest leverage points for change.

If any of the above points resonate with you, this app will be a good fit.

Try PsychFlex one month completely risk-free

What’s included:

  • 100+ tools and resources for your clients
  • Written materials, videos, images, animations, and audios
  • Training programs by leading experts (with new material being added every month)
  • E-learning: webinars, demonstrations, and tutorials
  • Secure communication with your clients

All enrollments are backed by an unconditional 30-day money-back guarantee.

To join, select one of the following options:

Try 30 days without risk. Cancel anytime.

PsychFlex_Payment Methods@2x

Closing Thoughts from Steven C. Hayes and Gijs Jansen

As therapists, we try to empower people and provide them with the tools to create meaningful lives.

While this ambition may be honorable, it is just as difficult to realize.

Because when our clients leave the room, we cannot be sure to have reached them with their problems.

We cannot be certain whether they have fully understood the lessons from therapy, whether they will apply the techniques they have learned, or whether they are prepared to meet their everyday challenges.

Even more, we cannot be certain whether we are providing our clients with the most effective care available… at least not with the traditional therapy model.

We are entering into a new era of psychotherapy, in which we can no longer rely on protocols for syndromes or one-size-fits-all solutions.

Rather than putting our clients into labeled boxes, we need to look at their underlying processes, and start with their unique wants and individual challenges in mind.

We need to uncover how our clients’ struggles are maintained on a day-to-day basis, and how their everyday choices relate to their goals and needs.

This is simply not possible in mere 60 minute sessions.

We have been on a process-based journey for over a decade, but now we finally have the technological support to realize this vision.

PsychFlex allows you to reach into your clients’ lives, and provide them with the right care for their individual goals and personal challenges.

It is filled with the most effective tools and interventions that evidence-based psychology has to offer, allowing you to keep your clients engaged and motivated outside of session to facilitate lasting, meaningful change.

If you are working with people, aiming to promote prosperity and mental well-being, then PsychFlex is for you.

We hope you will join us inside the app, as we enter this exciting next chapter in clinical psychology.

One that is more personalized, more involved, and ultimately more effective for our clients.

It’s time for a whole new way to practice psychotherapy!