UX Case Studies
72 published, ≈ 50 hours each
UX Bites
667 published, ≈ 20 minutes each
UX Glossary
53 published, ≈ 5 hours each
UX Cheatsheets
6 published, ≈ 10 hours each
That's about 553.07 working days
Other teams have already solved the problems you're facing, so learn from them.
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"Second to none"
All I need in one subscription
There are hundreds of UX resources online bit it's hard to find high quality ones like BFM+. I have all I need to improve as a UX designer in just one subscription.
- Carlos Viciana
Second to none
The depth of insight is second to none - and it is clear that actual thought and serious research has gone into them rather than simply rattling off the standard UX-by-the-numbers tropes.
- Daniel
Better than expensive courses
Your case studies are hands down the best (and fastest) way I'm learning UX—better than the many expensive courses I've bought.
- Kyleen S
Entertaining and informative
Entertaining and informative. More memes please.
- Anonymous
Insights we can use
BFM+ is an archive of small insights which we can then use in our product.
- Alex
I recommend you a lot
Been following you a long time and learned a lot. Awesome stuff, always on point and I recommend you a lot.
- Fichte42
Very helpful heuristics
I work in a financial institution and there's relevant content for me, with general UX advice and heuristics that are very helpful.
- Anonymous
Stayed for the memes
Came for the UX research, stayed for the memes.
- Matt B
Unique blend of psychology insights
A unique blend of psychology insights and real-world examples not only demystifies app flows, but also cultivates a clear understanding of why some things work while others don't.
- Marc Schmitt
The best UX case studies
The best UX case studies on internet.
- Vadim
So fun to read
I've never encountered a UX design blog that is so fun to read. Helpful for those just starting in UX to understand basics; also helpful for experienced designers to stay in the loop.
- Anna Zelenskaya
I learn something new every time
Vibe of the newsletters and articles makes me feel like you're a friend. Succinct, clear and insightful: I learn something new every time I read your work!
- Li-Lian
A gold mine
The case studies are a gold mine. They help me think more critically when designing and the UX Bites show specific examples of great UX in the wild.
- Anonymous
The best learning tool
Probably the best learning tool in my arsenal. The case studies have the right amount of detail with the ux bites being an excellent addition.
- Niko Xydakis
Truly unique
The long case studies are truly unique pieces in this industry of fast-paced pop-psychology.
- Mark Buskbjerg
A game-changer
Honestly, it's a game-changer. BFM has a way of making the tricky parts of UX design super approachable and fun to learn. Amazing way to deepen your knowledge in UX design.
- Matija
It's magic!
BFM+ is that place I can go to read for fun and come out with valuable inspiration that translates into practical action items for my own projects.
- Diego Gallovich
Millions of pounds in new business
I’ve incorporated a handful of Built for Mars' recommendations into my product roadmap. These insights enabled my team to secure millions of pounds in new business.
- Adilson Santos
*chefs kiss
The way you've taken the UX concepts, summarised them, and seamlessly docked them with the case studies and bites is *chefs kiss*.
- Richard Boyd
Genuinely make me giggle
The case studies deliver a lot of thoughtful insights while genuinely making me giggle.
- Miha Su
One of the best
One of the best collections of UX principles out there. There's a lot more to what we do rather than just a polished interface.
- Diogo
A continuous stream of "aha!" moments
BFM+ provides such a nice way to learn new things without being overwhelming. The UX bites are an amazing way for anyone to have a continuous stream of "aha!" moments.
- Irina C
Love the articles
I love the articles, I recently used them for designing an onboarding journey.
- Sevgi
Pretty much perfect
Fun and entertaining, it's pretty much perfect.
- Catherine
Better than expensive courses
Your case studies are hands down the best (and fastest) way I'm learning UX—better than the many expensive courses I've bought.
- Kyleen S
It's magic!
BFM+ is that place I can go to read for fun and come out with valuable inspiration that translates into practical action items for my own projects.
- Diego Gallovich
The best learning tool
Probably the best learning tool in my arsenal. The case studies have the right amount of detail with the ux bites being an excellent addition.
- Niko Xydakis
Millions of pounds in new business
I’ve incorporated a handful of Built for Mars' recommendations into my product roadmap. These insights enabled my team to secure millions of pounds in new business.
- Adilson Santos
So fun to read
I've never encountered a UX design blog that is so fun to read. Helpful for those just starting in UX to understand basics; also helpful for experienced designers to stay in the loop.
- Anna Zelenskaya
Stayed for the memes
Came for the UX research, stayed for the memes.
- Matt B
Pretty much perfect
Fun and entertaining, it's pretty much perfect.
- Catherine
Insights we can use
BFM+ is an archive of small insights which we can then use in our product.
- Alex
Love the articles
I love the articles, I recently used them for designing an onboarding journey.
- Sevgi
A game-changer
Honestly, it's a game-changer. BFM has a way of making the tricky parts of UX design super approachable and fun to learn. Amazing way to deepen your knowledge in UX design.
- Matija
A gold mine
The case studies are a gold mine. They help me think more critically when designing and the UX Bites show specific examples of great UX in the wild.
- Anonymous
The best UX case studies
The best UX case studies on internet.
- Vadim
All I need in one subscription
There are hundreds of UX resources online bit it's hard to find high quality ones like BFM+. I have all I need to improve as a UX designer in just one subscription.
- Carlos Viciana
A continuous stream of "aha!" moments
BFM+ provides such a nice way to learn new things without being overwhelming. The UX bites are an amazing way for anyone to have a continuous stream of "aha!" moments.
- Irina C
One of the best
One of the best collections of UX principles out there. There's a lot more to what we do rather than just a polished interface.
- Diogo
Very helpful heuristics
I work in a financial institution and there's relevant content for me, with general UX advice and heuristics that are very helpful.
- Anonymous
Entertaining and informative
Entertaining and informative. More memes please.
- Anonymous
Truly unique
The long case studies are truly unique pieces in this industry of fast-paced pop-psychology.
- Mark Buskbjerg
I learn something new every time
Vibe of the newsletters and articles makes me feel like you're a friend. Succinct, clear and insightful: I learn something new every time I read your work!
- Li-Lian
Second to none
The depth of insight is second to none - and it is clear that actual thought and serious research has gone into them rather than simply rattling off the standard UX-by-the-numbers tropes.
- Daniel
Genuinely make me giggle
The case studies deliver a lot of thoughtful insights while genuinely making me giggle.
- Miha Su
Unique blend of psychology insights
A unique blend of psychology insights and real-world examples not only demystifies app flows, but also cultivates a clear understanding of why some things work while others don't.
- Marc Schmitt
I recommend you a lot
Been following you a long time and learned a lot. Awesome stuff, always on point and I recommend you a lot.
- Fichte42
*chefs kiss
The way you've taken the UX concepts, summarised them, and seamlessly docked them with the case studies and bites is *chefs kiss*.
- Richard Boyd
Better than expensive courses
Your case studies are hands down the best (and fastest) way I'm learning UX—better than the many expensive courses I've bought.
- Kyleen S
It's magic!
BFM+ is that place I can go to read for fun and come out with valuable inspiration that translates into practical action items for my own projects.
- Diego Gallovich
The best learning tool
Probably the best learning tool in my arsenal. The case studies have the right amount of detail with the ux bites being an excellent addition.
- Niko Xydakis
Millions of pounds in new business
I’ve incorporated a handful of Built for Mars' recommendations into my product roadmap. These insights enabled my team to secure millions of pounds in new business.
- Adilson Santos
So fun to read
I've never encountered a UX design blog that is so fun to read. Helpful for those just starting in UX to understand basics; also helpful for experienced designers to stay in the loop.
- Anna Zelenskaya
Pretty much perfect
Fun and entertaining, it's pretty much perfect.
- Catherine
Stayed for the memes
Came for the UX research, stayed for the memes.
- Matt B
Insights we can use
BFM+ is an archive of small insights which we can then use in our product.
- Alex
A game-changer
Honestly, it's a game-changer. BFM has a way of making the tricky parts of UX design super approachable and fun to learn. Amazing way to deepen your knowledge in UX design.
- Matija
All I need in one subscription
There are hundreds of UX resources online bit it's hard to find high quality ones like BFM+. I have all I need to improve as a UX designer in just one subscription.
- Carlos Viciana
A continuous stream of "aha!" moments
BFM+ provides such a nice way to learn new things without being overwhelming. The UX bites are an amazing way for anyone to have a continuous stream of "aha!" moments.
- Irina C
A gold mine
The case studies are a gold mine. They help me think more critically when designing and the UX Bites show specific examples of great UX in the wild.
- Anonymous
The best UX case studies
The best UX case studies on internet.
- Vadim
Love the articles
I love the articles, I recently used them for designing an onboarding journey.
- Sevgi
Very helpful heuristics
I work in a financial institution and there's relevant content for me, with general UX advice and heuristics that are very helpful.
- Anonymous
Entertaining and informative
Entertaining and informative. More memes please.
- Anonymous
Truly unique
The long case studies are truly unique pieces in this industry of fast-paced pop-psychology.
- Mark Buskbjerg
I learn something new every time
Vibe of the newsletters and articles makes me feel like you're a friend. Succinct, clear and insightful: I learn something new every time I read your work!
- Li-Lian
One of the best
One of the best collections of UX principles out there. There's a lot more to what we do rather than just a polished interface.
- Diogo
Genuinely make me giggle
The case studies deliver a lot of thoughtful insights while genuinely making me giggle.
- Miha Su
Second to none
The depth of insight is second to none - and it is clear that actual thought and serious research has gone into them rather than simply rattling off the standard UX-by-the-numbers tropes.
- Daniel
Unique blend of psychology insights
A unique blend of psychology insights and real-world examples not only demystifies app flows, but also cultivates a clear understanding of why some things work while others don't.
- Marc Schmitt
I recommend you a lot
Been following you a long time and learned a lot. Awesome stuff, always on point and I recommend you a lot.
- Fichte42
*chefs kiss
The way you've taken the UX concepts, summarised them, and seamlessly docked them with the case studies and bites is *chefs kiss*.
- Richard Boyd
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"All I need in one subscription"
Unlock 72 (and growing) original studies
Carefully crafted analysis that you can trust, made palatable with memes. From teardowns to full industry benchmarks.
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Browse the library of UX Bites
A feed of the best UX interactions in the world, contextualised and organised for you to browse, sort, save and try yourself.
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Unlock the UX glossary
With clear breakdowns of the concepts you'll actually want to use.
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Treat it like a UX course
Track progress, save studies and browse only new content.
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Test your knowledge
Interactive UX quizzes and exercises.
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Monthly UX cheatsheets
Copy like a pro, with quick wins and implementation tips.
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Create collections
Build a roadmap of things to try.
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Unlock powerful filters
e.g., “How do the best FinTech products reduce Churn?”
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FAQs
Who is this subscription designed for?
If you just want to read the new case studies as they're released, and occasionally browse a few UX Bites for pleasure, then you don't need to pay.
Just join the free newsletter.
---
Built for Mars Premium is designed for active product builders, who care deeply about finding their next 5% boost in conversion rates.
They'll want to:
• Read, reference and benchmark against the entire library of case studies.
• Use the powerful filters to find specific UX Bites, ideas and experiments (i.e., reducing churn for a FinTech product).
• Dive deep into specific UX psychology, and understand all the potential impacts, with tips for implementation.
Is this worth the investment? (ROI?)
For context, I've privately worked with some of the best product teams in the world (via audits), and seen first-hand the UX changes that can create a real impact to a business.
For roughly $150 a year, you can access thousands of hours of UX research and analysis that I've refined over many years.
At $150, all you really need is one minor improvement (most teams would be able to find far more), to have a massively positive ROI.
Who are you? What do you know?
Hey, my name is Peter.
You can learn more about my story here, but in short; I've spent years working with some of the best product teams in the world.
I've been a UX consultant to Stripe, Google, Notion, Klarna, Intuit and hundreds more. I specialise in subtle and nuanced details, that help teams optimise their user experience.
I'm not retired from consulting (I'm only 30), in fact working with teams keeps me fresh. I'm running experiments and ideas on billions of users around the world.
I take what I learn, and publish it for you here (in a bite sized format).
How does this compare to a UX course?
Although I know courses are very popular, I've personally always struggled to engage with the format.
Instead, in my life, I've learned far more by reading articles, research, YouTube videos and tips at my own pace, without an "on-rails" programme.
The content on Built for Mars could have easily been a "course", but instead I wanted to build a flexible library that puts you in control:
- Decide what interests you, and focus on that particular area (i.e., UX psychology, experiments, best practice).
- Ramp up (and down) your commitment based on life, work and your capacity to engage.
- Not invest $1,000s up front. You can start for as little as £2 per week.
Billing & payments
Can I expense this through my business?
Absolutely, most product teams even have an internal budget for educational resources (i.e., research, courses, user testing).
Do you offer discounts for students and educators?
Yes, complete this form.
What's the refund policy?
It's simple; if you change your mind and want your money back, email me on help@builtformars.com within 7 days of purchase.
You'll be refunded in full, regardless of which package you purchased.