What Happens When You Let AI Test Your App for a Week

What Happens When You Let AI Test Your App for a Week I'm the creator of Drengr , an MCP server that gives AI agents eyes and hands on mobile devices. I started this blog to share the engineering behind it. No pretending to be a neutral observer writing a think piece — I built this, and I'm here to talk about it. AI mobile testing is either the future of QA or an expensive way to generate false bug reports, depending on who you ask. I decided to find out for myself. I pointed Drengr's OODA-loop agent at three different apps — a calculator, a weather app, and a social media client — and let it run autonomously for a week. Here's what happened, including the parts that didn't work. This wasn't a controlled experiment in any scientific sense. The sample size is tiny, the apps are specific, and the results may not generalize. I'm sharing this as a data point, not a proof. Autonomous mobile testing is genuinely new territory and I think honest reporting matters more than impressive claims.