Mobile Dev Inc

Founded 2021

The company behind Maestro, the open source end to end UI testing framework used by Microsoft, Meta, Uber, and Stripe.

Overview

Mobile Dev Inc is the company behind Maestro, an open source end to end UI testing framework for mobile and web applications. The company builds tools that make UI testing simple, reliable, and accessible to everyone on a development team, not just engineers with testing framework expertise. Maestro uses a YAML based test syntax that reads like natural language, supports iOS, Android, and web apps across every major framework (React Native, Flutter, SwiftUI, Jetpack Compose, and others), and offers a free desktop IDE called Maestro Studio with visual element inspection, action recording, and an AI assistant. The open source project has accumulated over 11,000 GitHub stars and is used by some of the largest technology companies in the world, including Microsoft, Meta, DoorDash, Uber, xAI, Amazon, Disney, Stripe, Kraken, Atlassian, Pinterest, and Bluesky. Mobile Dev Inc also offers Maestro Cloud, an enterprise grade cloud infrastructure product for running tests in parallel at scale with CI/CD integration and analytics. The company positions Maestro as essential infrastructure for the AI era, where development velocity has increased dramatically and quality assurance has become the primary bottleneck.

What makes them different

Mobile Dev Inc took the approach of making UI testing radically simple rather than radically powerful. While competitors like Appium offer maximum flexibility through code based test authoring in multiple languages, Maestro chose a constrained YAML syntax that trades some flexibility for massive gains in readability, reliability, and accessibility. The result is a testing tool that non technical team members can actually use. A QA tester or product manager can read, understand, and write Maestro tests without programming experience. This shifts testing from a developer only activity to a team wide responsibility, which is increasingly important as AI tools accelerate development speed and create a need for broader quality coverage. The combination of open source CLI (free), Maestro Studio (free), and Maestro Cloud (paid) creates a natural adoption path: teams start with the free tools, build their test suites, and upgrade to Cloud when they need scale. This model has attracted an impressive roster of enterprise customers without requiring upfront commitment.