14 articles on UX for iOS performance

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Weera Youngnam from KBTG turned a personal pain point into a feature that caught executive attention. His journey from gyroscope experiments to production reveals how small PoCs can create outsized impact.

Ever tried debugging a mobile app crash without knowing what the user actually did? You're flying blind.

Shopify doubled developer productivity by turning the most tedious part of mobile development into a one-click experience.

Custom Navigational Transitions in iOS

Company: Zalando · Jul 1, 2024
Platform: iOS

Zalando's iOS team tackled a deceptively hard problem: creating smooth screen transitions when the entire UI is driven by the backend.

Planting Trees One Ride at a Time

Company: Gojek · Oct 20, 2022
Platform: iOS / Android

Gojek turned ride-hailing into climate action with a simple toggle. One developer said it best: 'For the first time in my life, writing code generated physical outputs.'

Mercado Libre's mobile apps serve 4.5 billion active devices. A Galaxy A10 might take 5 seconds to load a screen—or just 1.67 seconds, depending on conditions.

Ryan O'Neill from Square reveals why 9 out of 10 mobile shoppers think their experience could be better. His team's solution? Stop thinking mobile-first and start thinking app-first.

Tokopedia iOS: Hello 2021, Rewind 2020

Company: Tokopedia · Jan 14, 2021
Platform: iOS

Samuel Edwin from Tokopedia reveals how his iOS team achieved a 10x build time reduction while shipping features that got them featured on the App Store. Despite 2020's challenges, they transformed their entire...

Split Testing (A/B Testing) with Swift

Company: Badoo · Jul 4, 2018
Platform: iOS

Alexander from Bumble's engineering team built a client-side A/B testing framework in Swift that takes just 1-2 minutes to implement per new test. No server infrastructure required—just protocols, generics, and...

Loading Time Matters

Company: Zalando · Jun 11, 2018
Platform: iOS / Android

Zalando proved that every 100ms of loading time equals real money: a 0.7% revenue lift per session. When 75% of your traffic is mobile, milliseconds become millions.

Viraj Mody from Dropbox reveals how they built a mobile-to-desktop onboarding flow so seamless that users in testing didn't even notice the magic happening. Zero password typing required.

Kat from Dropbox discovered that slowing down their signup flow actually increased conversions. Counter-intuitive? Here's why it worked.

LinkedIn ships a single mobile binary but runs dozens of A/B tests simultaneously. Here's how they pulled it off without constant app releases.

Christine Tieu from Twitter's Mobile Web Team reveals how they flipped their entire mobile UI for Arabic and Farsi without drowning in duplicate CSS rules.

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