How to Capture and Inspect Network Traffic on a Real Mobile Device

When a mobile feature misbehaves, the answer is usually in the network. But capturing what an app actually sends and receives on a real device has traditionally meant proxies, certificates, and fiddly local setup. Here's how to do it cleanly on a real iOS or Android device.

What you'll see

• Every request the app makes — endpoints, methods, headers, payloads.
• Every response — status codes, bodies, timing.
• The failures — the 4xx/5xx or timeout behind a broken screen.

Why it beats logs

Logs tell you what the app thinks happened. The captured traffic tells you what actually went over the wire — which is where the truth usually is when the UI and the backend disagree.

How to do it with RobotActions

1. Sign in at robotactions.com and open a real device.
2. Start network capture.
3. Use the app; watch requests and responses stream in, fully inspectable.
4. Found the culprit? Mock that response to confirm the fix, right there on the device.

No local proxy, no certificate wrangling.

Let an AI agent do it

Exposed as an MCP tool, an agent can do the digging for you:

"Capture the network on app launch and tell me which call is failing and why."

Try it

Sign in with Google or GitHub and inspect device traffic free →