How Doist optimizes iOS performance

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Optimizing GRDB in Todoist for iOS

Company: Doist · Jan 27, 2026
Platform: iOS

The hidden cost of LEFT JOINs in GRDB..Deep-dive into fixing iOS sluggishness.

Doist explains how they replaced fragile Espresso idling-resource tests with Maestro’s UI testing framework to build a more reliable, maintainable, and scalable mobile UI test suite across their apps.

Continuous Deployment for iOS

Company: Doist · Feb 15, 2022
Platform: iOS

iOS continuous deployment approach, including feature flags, automated versioning, and managing translated assets to ship smaller, safer releases.

Debugging the UI of Third-Party iOS Apps

Company: Doist · Sep 15, 2021
Platform: iOS

A toolkit-focused walkthrough showing how to use FLEX to inspect and debug the UI of third-party iOS apps, including installing, activating, and exploring runtime UI structures.

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