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Denislav Jeliazkov

@DenisJeliazkov • 39,514 subscribers

Designer & builder @figuradigital ✦ I try to swim, bike & run ✦ Built for 100+ startups

Shorts

I'm an Apple fanboy. Here are 30 times Apple nailed their design: 1) Physical card animation

I'm an Apple fanboy. Here are 30 times Apple nailed their design: 1) Physical card animation

1,182,345 views

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.

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.

753,530 views

5. Apple Weather Really good. Clean data visualization, intuitive hourly scrolling, and the subtle animations when checking different cities make it feel alive. I also absolutely love the weather-dependent animations. It's beautiful.

5. Apple Weather Really good. Clean data visualization, intuitive hourly scrolling, and the subtle animations when checking different cities make it feel alive. I also absolutely love the weather-dependent animations. It's beautiful.

559,117 views

6. Apple Notes It's fast, syncs perfectly, and does EXACTLY what it needs to. The OCR for handwritten notes is magic, and the way you can scan documents now makes it indispensable. After trying Notion and Obsidian, I'm back to Apple Notes.

6. Apple Notes It's fast, syncs perfectly, and does EXACTLY what it needs to. The OCR for handwritten notes is magic, and the way you can scan documents now makes it indispensable. After trying Notion and Obsidian, I'm back to Apple Notes.

520,130 views

Over engineering success states because every details matters

Over engineering success states because every details matters

84,760 views

I'm starting a design war. Here are 10 times Apple's UI obliterated Android's: 1. Superior Notifications

I'm starting a design war. Here are 10 times Apple's UI obliterated Android's: 1. Superior Notifications

287,906 views

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 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

193,836 views

📱 A concept I had lying around. All phones have NFC, and all POS terminals are NFC enabled. Why can't we turn Phones into Terminals?

📱 A concept I had lying around. All phones have NFC, and all POS terminals are NFC enabled. Why can't we turn Phones into Terminals?

296,727 views

I've designed 150+ products. Here are my UI/UX predictions for 2026 (product founders & designers, listen up): 1. Agentic UX

I've designed 150+ products. Here are my UI/UX predictions for 2026 (product founders & designers, listen up): 1. Agentic UX

60,999 views

I've designed 150+ products and built 60+ apps over the last ~10 years. If I were starting from scratch today as a product designer, here's exactly how I'd become the most badass designer in the world: (Steal this playbook before everyone else does) 🧵

I've designed 150+ products and built 60+ apps over the last ~10 years. If I were starting from scratch today as a product designer, here's exactly how I'd become the most badass designer in the world: (Steal this playbook before everyone else does) 🧵

93,385 views

🚨Launch Alert I've been working on FREE Product Design Challenges to help you build a better portfolio or transition to a new industry. • 70+ challenges • 5 industries • 14 late nights • ALL FREE Like & RT and I will DM you access!

🚨Launch Alert I've been working on FREE Product Design Challenges to help you build a better portfolio or transition to a new industry. • 70+ challenges • 5 industries • 14 late nights • ALL FREE Like & RT and I will DM you access!

138,409 views

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.

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.

78,995 views

🪄 A more fun payment success Collab w/ Daniil

🪄 A more fun payment success Collab w/ Daniil

110,413 views

Cal AI might be the most viral health app this year. 8M+ downloads, projected to do $30M revenue this year. Built by two teenagers. Everyone's using it. But nobody's talking about the fact that their AI is completely broken... To the point where users are manually correcting EVERY meal. • Bowl of grapes: 60 cal estimate (actually ~260) • 4 boiled eggs: 1,010 cal estimate (actually ~300) • Meat portions: consistently off by 50% These aren't my words, but the reviews you can see for yourself on App Store and other places. If the whole USP is saving time vs manual logging, and you still have to correct everything... what's the point? What Cal AI did get right: Distribution. • Viral TikTok content • Smart influencer partnerships • 8M downloads in under a year They absolutely crushed GTM. But the product doesn't work lol. The gap between the "90% accuracy" claim vs the actual user experience kills trust. And in health apps, trust is everything. This is the problem with AI apps across the board right now. Everyone's racing to ship fast and go viral. Nobody's asking: "Does this actually solve the problem?" Distribution > product quality is a losing game. As a result, you're bound to encounter problems: 1. Training data doesn't match real-world variety 2. No depth sensing for portion size 3. Poor training data on homemade meals 4. Zero context (is that chicken grilled or fried?) You only get fast & inaccurate answers. This is why, when I started building my own recipe app, I looked at Cal and other AI nutrition apps and noticed that being accurate was the biggest factor. Here's how we're building Nonna differently: ✓ Multi-model AI (different models for different foods) ✓ User feedback loop to improve estimates ✓ Manual override that actually trains the system ✓ Ship when it works, not when it's "good enough" If the AI can't nail it, we're not shipping it. But accuracy alone is boring. So we're also adding some additional features that make you want to use it daily: • Fridge Story: shareable infographic of your fridge contents • Mystery Ingredient: weekly cooking challenges • Cuisine Spin: random inspiration when you're stuck • Expectation vs Reality: before/after photo collages Tl;dr: Distribution gets downloads. Product keeps users. Cal got millions of downloads. How many people still use it daily after manually correcting every meal for a week? Viral marketing with a broken product = expensive way to disappoint people.

Cal AI might be the most viral health app this year. 8M+ downloads, projected to do $30M revenue this year. Built by two teenagers. Everyone's using it. But nobody's talking about the fact that their AI is completely broken... To the point where users are manually correcting EVERY meal. • Bowl of grapes: 60 cal estimate (actually ~260) • 4 boiled eggs: 1,010 cal estimate (actually ~300) • Meat portions: consistently off by 50% These aren't my words, but the reviews you can see for yourself on App Store and other places. If the whole USP is saving time vs manual logging, and you still have to correct everything... what's the point? What Cal AI did get right: Distribution. • Viral TikTok content • Smart influencer partnerships • 8M downloads in under a year They absolutely crushed GTM. But the product doesn't work lol. The gap between the "90% accuracy" claim vs the actual user experience kills trust. And in health apps, trust is everything. This is the problem with AI apps across the board right now. Everyone's racing to ship fast and go viral. Nobody's asking: "Does this actually solve the problem?" Distribution > product quality is a losing game. As a result, you're bound to encounter problems: 1. Training data doesn't match real-world variety 2. No depth sensing for portion size 3. Poor training data on homemade meals 4. Zero context (is that chicken grilled or fried?) You only get fast & inaccurate answers. This is why, when I started building my own recipe app, I looked at Cal and other AI nutrition apps and noticed that being accurate was the biggest factor. Here's how we're building Nonna differently: ✓ Multi-model AI (different models for different foods) ✓ User feedback loop to improve estimates ✓ Manual override that actually trains the system ✓ Ship when it works, not when it's "good enough" If the AI can't nail it, we're not shipping it. But accuracy alone is boring. So we're also adding some additional features that make you want to use it daily: • Fridge Story: shareable infographic of your fridge contents • Mystery Ingredient: weekly cooking challenges • Cuisine Spin: random inspiration when you're stuck • Expectation vs Reality: before/after photo collages Tl;dr: Distribution gets downloads. Product keeps users. Cal got millions of downloads. How many people still use it daily after manually correcting every meal for a week? Viral marketing with a broken product = expensive way to disappoint people.

37,989 views

6) Instagram’s recommend-a-thon @Instagram's feed is a random stranger parade. Content from the 600 accounts I follow? Nah. Instead, my feed is packed with reels from total strangers. Give me a simple "Following Only" toggle?

6) Instagram’s recommend-a-thon @Instagram's feed is a random stranger parade. Content from the 600 accounts I follow? Nah. Instead, my feed is packed with reels from total strangers. Give me a simple "Following Only" toggle?

57,055 views

Recent build for Pickup 🏀

Recent build for Pickup 🏀

22,369 views

@airbnb's new update that came out this year is absolutely beautiful. Their new design language is holographic, glassy, & ultra-tactile. They're literally becoming the new Apple, and this proves it.

@airbnb's new update that came out this year is absolutely beautiful. Their new design language is holographic, glassy, & ultra-tactile. They're literally becoming the new Apple, and this proves it.

20,978 views

7. Lyrics/subtitles integration is super cool: It syncs perfectly, highlights the current line, and keeps it clean. This is one of those features that brings me actual joy - and Apple Music still hasn't caught up after years of trying.

7. Lyrics/subtitles integration is super cool: It syncs perfectly, highlights the current line, and keeps it clean. This is one of those features that brings me actual joy - and Apple Music still hasn't caught up after years of trying.

23,583 views

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."

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."

16,688 views

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The Doherty Threshold says something stupidly simple: Keep response times under 400ms (0.4 seconds). That's it. But 99% of products ignore this and wonder why users bounce. Your product either feels effortless… or like pulling teeth. No in-between.

The Doherty Threshold says something stupidly simple: Keep response times under 400ms (0.4 seconds). That's it. But 99% of products ignore this and wonder why users bounce. Your product either feels effortless… or like pulling teeth. No in-between.

Denislav Jeliazkov

109,431 views • 1 year ago

As a product designer, here are 8 of my favourite designers on X: (with a breakdown of their best shots) 🧵 1. rauno - show me a more interactive website, I'll wait

As a product designer, here are 8 of my favourite designers on X: (with a breakdown of their best shots) 🧵 1. rauno - show me a more interactive website, I'll wait

Denislav Jeliazkov

94,172 views • 11 months ago

Figma design systems in one click! Finally I won't spend decades building it perfectly. Comment below if you want early access to it!

Figma design systems in one click! Finally I won't spend decades building it perfectly. Comment below if you want early access to it!

Denislav Jeliazkov

25,852 views • 4 months ago

Here's an unexpected fact: Studies show dark text on light backgrounds is 26% more readable. The Nielsen Norman Group found reading speed decreases by nearly 10% with white text on black. Yet every designer acts like dark mode is the holy grail of UX.

Here's an unexpected fact: Studies show dark text on light backgrounds is 26% more readable. The Nielsen Norman Group found reading speed decreases by nearly 10% with white text on black. Yet every designer acts like dark mode is the holy grail of UX.

Denislav Jeliazkov

48,072 views • 1 year ago

Revolut 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.

Revolut 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.

Denislav Jeliazkov

44,843 views • 1 year ago

Hick's Law states: The more options you give users, the longer they take to make a decision. Here's the fancy formula: T = b × log₂ (n + 1) In plain English: More choices = exponentially more brain processing time.

Hick's Law states: The more options you give users, the longer they take to make a decision. Here's the fancy formula: T = b × log₂ (n + 1) In plain English: More choices = exponentially more brain processing time.

Denislav Jeliazkov

33,152 views • 1 year ago

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