irrational pricing


Hi. I'm Denizcan Sanlav

I’m the person behind this blog.

I design for pricing strategies.

I’m anti-conventional, independent-minded and obsessed with decision making. (Especially buying decisions)

My personality and obsessions introduced me to behavioral psychology about 4 years ago. And I combine all this with marketing and pricing. This is my personal monopoly.

50+ books, 100+ academic articles, training from places like MIT, Toronto and CXL.

I did field studies and gave trainings for 6 months in the most reliable research company of the country.
I tested how I could apply my theoretical knowledge on persuasion and marketing to real life.

I enjoy building interesting or new things.

Currently, I am working on Irrational Pricing. Every month, I write a few case studies on this blog, explaining how products can increase their revenue through irrational pricing. Additionally, I provide guidance on pricing and pricing strategies for product companies.

In the fall of 2022, I launched We created the world’s best Twitter targeting tool. However, we had to suspend the service after Elon Musk acquired Twitter.

In the near future, I will be writing a handbook on how to use behavioral psychology in landing page copywriting.

How My Blog Will Benefit Your Business

Companies and founders often price their products rationally. However, humans are not rational beings. When it comes to perception, value measurement, and decision-making, we rely on emotions, instincts, and cognitive biases. About 80% of our decisions are made by our unconscious (system 1) side.

We decide based on the options presented to us. We are influenced by how the options are framed. Our hard-to-change behaviors can be altered by nudges.

In the past 30 years, the fields of decision science and behavioral psychology have helped us discover many new things about human beings. And we use all of this to make people’s pricing decisions easier

Those who design the options are designing the decisions and behaviors.

The pricing strategies I design can help your business in the following ways:

  • Increase the perceived value of your product.
  • Get potential customers who are willing to pay more.
  • Know in advance which packages your potential customers will choose.
  • Increase your profit by making small adjustments in pricing.

Contact me


Feel free to say hey to me:

Twitter: @sanlavdenizcan

Linkedin: @sanlavdenizcan

Email: d at irrationalpricing dot com or click the link and send.

Work with me

I’m only working on a few projects. I’m not taking on any new projects at the moment. My calendar is not available for the next three months.

Choose from 2 options.

  1. Get your case study

    Every month, I publish free case studies.
    If you want the next case study to be about your product, fill out the form on the page. It’s free.
    I review the requests and select a product. I then write the next case study about that product.


  2. Leave me your e-mail address from here.
    Get quick information when there is availability for the next projects.

You're leaving money on the table


I publish a few case studies every month. I choose a product/service in each case study. I explain how they will increase their revenues with their pricing strategies.

Learn to increase your revenue by designing your pricing with behavioral psychology.

It’s free.

İdilsu Sanlav
İdilsu SanlavFrontend Developer
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Denizcan has a different perspective on product positioning and pricing. He applies behavioral psychology wonderfully to product marketing. I am learning a lot from him.
Yunus Ertürk
Yunus ErtürkUI Designer/Developer
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I highly recommend Denizcan for his exceptional product positioning, marketing, and pricing skills. His keen eye for boosting landing page conversion rates and his mindset set him apart from the competition. Denizcan is an excellent choice for taking help If you're looking to take your product to the next level.
Muhammet Çalış
Muhammet ÇalışProduct Designer
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As a Product Builder , I have greatly benefitted from his expertise. His insightful information has played a vital role in enhancing the impact of my designs. Whenever I embark on a new project, I make it a point to seek his counsel to ensure that my products are optimized to deliver the best user experience possible.
Yusuf Mansur Özer
Yusuf Mansur ÖzerFounder at
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I had the pleasure of working with Denizcan for positioning, marketing, and pricing for our GPT-based product DocuChat. He was outstanding in his responsiveness and ability to clearly explain every decision throughout the process. His insights went beyond our expectations and actually changed the way I perceived our own product.I highly recommend Denizcan for his expertise as well as his unique approach that incorporates behavioral psychology. He makes a striking impact on your business, and I firmly believe his work will elevate any organization's product to new heights.
Emre Cırık
Emre CırıkProduct Owner at Mükellef
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I received support in positioning my product and discovering new tools. The thing that helped me the most was his strategies for product pricing.