performance

Forbidden iOS 👹

7 more things Apple doesn't want you to know

Sep 16 • Jacob Bartlett

App Size 101: Drop 40% in an afternoon

Fix the 5 most common low-hanging fruit

Sep 9 • Jacob Bartlett

Designing The Perfect Modular Architecture

Applying everything I've learned across 10 years of building

Jul 29 • Jacob Bartlett

UIKit for scroll performance!? Real engineers use Metal.

Actually hitting 120fps on a Photos app clone

Jun 23 • Jacob Bartlett

How did Apple cut launch time by 30% in iOS 27?

An Instruments-flavoured optimisation deep-dive.

Jun 17 • Jacob Bartlett

Apple Chip Architecture from 1977 to 2026

The full silicon story: from Apple I to M5 (and beyond!)

Jun 9 • Jacob Bartlett

My Secret Plot to Kill SwiftUI

A playbook for returning to normalcy

Jun 1 • Jacob Bartlett

Reliable Data Uploading on iOS

4 levels of confidence: simplicity, resilience, continuity, and durability

May 20 • Jacob Bartlett

Touch to Pixels: UI Pipeline Internals on iOS

A journey through hardware, backboardd, Core Animation, and the render server

May 13 • Jacob Bartlett

URLSession to Electrons: How Networking works on iOS

A theoretical deep-dive into how the internet happens via your iPhone

Apr 28 • Jacob Bartlett

The 7 Deadly Sins of Cargo Culting

How (not) to turn your startup into the next FAANG

Apr 14 • Jacob Bartlett

Oh sh*t, I have an "iOS coding" interview and don't know what to practice

A handy survival guide: drill, baby, drill!

Mar 31 • Jacob Bartlett

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