Blog

Notes from building MobAI

Mobile automation for AI agents, and the tooling we build to get there.

July 24, 2026

I got 19 iOS simulators running on a 16 GB MacBook

A stock iOS simulator idles at 4 GB across 258 processes. Turning off the daemons it doesn't need cuts that to 0.9 GB — here's simslim, the open-source tool that does it.

July 22, 2026

What's inside Claude Code's iOS Simulator pane

A teardown of Claude's simulator integration: a native helper built on Facebook's idb frameworks and Apple's CoreSimulator, HID-level gestures — and screenshot-only observation.

April 9, 2026

AI-native mobile device automation: give your AI agent eyes and hands on real phones

Your AI agent can write code — but can it use a phone? Why traditional testing tools fail LLMs, and how MobAI's compact UI trees, semantic predicates, and batched DSL fix that.