Denislav Jeliazkov Profile picture
Designer & maker ✦ I help founders build products people love ✦ Built 60+ for high-growth startups. See work → https://t.co/lHtMG6Jk88 | Book a call ↓
May 16 13 tweets 5 min read
I LOVE design psychology.

@Apple, @NotionHQ, and @Family all exploit the same psychological loophole to dominate their competition.

It's called Jakob's Law.

Once you understand it, you'll never look at product design the same way again 🧵 Jakob's Law is simple:

Users bring expectations from EVERY other app they've used before yours.

This means people prefer your product to work the SAME WAY as products they already know.

Break this, and you're training users from scratch. Good luck with that.
May 15 16 tweets 6 min read
A hill I'm willing to die on:

Spotify's UI & UX will never be defeated.

With 678+ million users, there's a reason it dominates music apps.

Let me break down why its design is so good (and what you can steal from it): Image 1. The navigation is stupid simple:

• Home
• Search
• Your Library

That's it. NEVER more than 2 taps from anything.

While most apps keep adding useless features to their bottom navigator, @Spotify understood that less is more.
May 3 18 tweets 7 min read
I design apps for a living.

I've spent 6+ years using every FinTech app on the market.

Here are 9 of the best (and worst) FinTech apps & what you can learn from their UI/UX:

1. @RevolutApp @RevolutApp is becoming an "everything app" beyond just banking.

I literally booked a hotel last weekend for €6 for two nights (plus a free massage) using Revolut points.

It has a clean, consistent UI that doesn't try to do too much at once.
May 1 13 tweets 5 min read
I'm an Apple fanboy.

But I admit some of their apps suck.

Here's my brutally honest take on the 9 most popular @Apple apps (as a product designer):

1. Apple Maps Apple maps went from being the app everyone laughed at to a genuinely great experience - BUT only in the US.

It sucks in most other places.

It also still misses some of Google Maps' best features like Street View and business info details.
Apr 13 17 tweets 7 min read
I'm starting a design war.

Here are 10 times Apple's UI obliterated Android's:

1. Superior Notifications iOS Notifications have a beautiful bounce animation that feels weighted.

Notice how the notifications don't just appear - they settle in with a satisfying "plop" feeling.

Android is functional, sure. But not fluid and haptic. It lacks the "feel."
Apr 6 13 tweets 6 min read
I'm obsessed with design psychology.

Here are 9 psychological tricks your favorite apps use to keep you addicted:

1) Skeleton Loaders Those gray loading "skeletons" replace content before it loads - because it makes the waiting time feel shorter.

Movement creates the illusion of progress when nothing's happening.

Ex: LinkedIn & FaceBook. Image
Image
Apr 1 13 tweets 5 min read
I design apps for a living.

But I've never seen ANYTHING like the @notboring apps.

They're redefining what "good design" means with physics, weight & movement.

Let me show you how they make their apps feel alive (and what designers & founders can steal from them): 🧵 Image Before I break down each app...

The thing I love about @notboring is they're not crazy revolutionary in terms of features.

But they took basic apps (calculator, weather, timer) and just made them FEEL amazing.

Same functions - but completely different experience.
Mar 30 14 tweets 5 min read
I've built 60+ apps in my career.

Most designers take 3+ months to complete an app—but I built & shipped this golf app just in 28 DAYS.

Here's my exact process that breaks every UX design rule (and what startups & founders can steal from it): 1) Skip the research BS

Most designers follow a rigid process & get lost in research.

But when deadlines are tight, you need to be pragmatic.

For this golf app, I skipped wireframes and went straight to competitive analysis—their users needed a solution, not process.
Mar 27 15 tweets 6 min read
I asked 35,000 designers what their favorite apps were.

These are the 10 best apps in the world (according to the designers of X):

1) @family I keep talking about this app and I'm glad everyone thinks it's great, too.

They add delightful touches exactly where they matter:

• Setting up a wallet gets a satisfying animation
• Sending tokens shows clear visual feedback

Every animation has a purpose. Image
Mar 25 15 tweets 6 min read
I'm a design geek.

I've tested HUNDREDS of apps—and @mymind is the No. 1 BEST app for creatives.

10 genius UI features from @mymind that will transform your creative workflow forever (screenshots & learnings included) 🧵 Image 1) Serendipity

The coolest thing about @mymind is the way it handles your captured content.

Swipe left to forget. Swipe right to keep.

It's like @Tinder but for your inspiration—this simple interaction makes organizing bookmarks fun rather than a chore.
Mar 23 13 tweets 5 min read
I'm a designer.

Here are 9 of the worst UX experiences I've ever seen:

1. Macbook Touchbar I HATED this thing. I had to keep looking at the touch strip to see if I was pressing the right button.

Totally killed my flow.

Thank god they finally brought back real keys in 2020.

Some mistakes are just too obvious.
Mar 18 14 tweets 6 min read
I'm a design addict—and an airplane nerd.

I've studied THOUSANDS of interfaces—and @Flighty is the best-designed travel app I've ever seen.

Here's a full breakdown of 9 magical features & what you can learn from them 🧵 Image 1) Useless until it's not

This is more of a principle than a feature, but I love it.

Most apps beg for daily attention.

Flighty is a "nothing app" until you're traveling—then it becomes the MOST valuable app on your phone.

It's the perfect example of how situational apps should work.
Mar 13 30 tweets 9 min read
I'm an Apple fanboy.

Here are 30 times @Apple nailed their design:

1) Physical card animation 2) Priority notifications

The liquid bounce is literally a piece of art. LOOK AT IT:
Mar 4 14 tweets 5 min read
I'm a design addict.

I spend 8 hours a day looking at UIs — and this is the best designed app I've ever seen.

Here's a full breakdown of @family, why it's the best-designed app out there & what you can learn from it 🧵: Image 1) The Dynamic Tray System

Most crypto wallets bombard you with every feature at once.

Coinbase throws charts, tokens, and news in your face immediately - see photo.

Family reveals complexity ONLY when you need it through their dynamic tray system ⬇️ Image
Dec 3, 2024 8 tweets 1 min read
The simplest way I went from charging $2k to $30k+ per project 1/6 How I did it previously:

Showed pretty designs
Listed technical skills
Competed on price
Promised fast delivery
Dec 18, 2022 11 tweets 14 min read
My no-code tech stack that I can’t live without (8 Free tools to save you hours): 1. @figma

An online Web app for UI Design that allows easy and seamless collaboration.

Can be used for things like…

- Web Design
- App Design
- Logo and branding design
Dec 17, 2022 18 tweets 4 min read
How to achieve more focus without taking pills (From someone with ADHD): Why is being able to focus so important?

Because your attention is a valuable resource.

There are 1000’s of media & advertisements trying to capture your attention every day.

Where you choose to place your focus determines the life you live.
Dec 15, 2022 15 tweets 5 min read
The login form for your website is like the entrance to your house.

It should be warm, welcoming, and easy to enter — Majority aren’t.

Here are 5 simple ways you can create better login forms for your website: When you fix your login form for your website, you’re encouraging users to login more frequently.

Unfortunately…

Majority of login forms are not optimized to be user friendly.

I’ll show you a simple process you can follow to make sure that yours is.
Dec 14, 2022 10 tweets 3 min read
7 TED Talks that will transform your life and advance your career in 2023: 1. The single biggest reason why startups succeed

By: Bill Gross

Learn the biggest reason why some startups are successful and why others fail.
ted.com/talks/bill_gro…
Nov 23, 2022 18 tweets 4 min read
Want to make your online business more profitable?

Invest in good UI/UX.

But how does it translate to ROI for your business?

Give me 5 mins and I’ll show you how good UI/UX can make your business more money: Before we begin, you need to know the difference between UI & UX.

UI = User Interface

It mostly refers to the visual layout of the website, app, or product.

UI designers work on visuals while still keeping the UX in mind

It includes things like…

- Buttons
- Images
- Text
Nov 16, 2022 13 tweets 4 min read
10 Books that will teach you more about Design than a $2997 Design course: 1) Don’t Make Me Think
- By Steve Krug

Subject: UX design

Lessons…

- “Don’t make users think”
- People don’t read, they scan
- Less is more Image