Charles Proxy has been a trusted HTTP debugging proxy for well over a decade, and it remains a capable, cross-platform desktop tool. Moni Proxy approaches the same problem from a different direction: it runs on the phone instead of the desktop. This page compares the two so you can choose based on your workflow.
Feature Comparison
| Feature | Moni Proxy | Charles Proxy |
|---|---|---|
| Mobile-first (runs on the phone) | Yes | — |
| On-device iPhone workflow (no computer) | Yes | — |
| Desktop app for big-screen debugging | Yes | Yes |
| Remote debugging (phone → desktop) | Yes | Partial |
| Traffic inspection (headers, bodies, timing) | Yes | Yes |
| HTTPS capture & decryption | Yes | Yes |
| Mock & rewrite (map local / rewrite) | Yes | Yes |
| No same-network requirement | Yes | — |
| Modern, touch-first UI | Yes | Partial |
When Charles Proxy Makes Sense
Charles is a great choice for desktop-centric debugging. It is battle-tested, scriptable, cross-platform, and packed with power features like throttling, breakpoints, and map local/remote. If your team already has Charles configured and you work primarily at a computer, there is little reason to change.
When Moni Proxy Makes Sense
Moni Proxy fits mobile-centric debugging. Capturing directly on the device means no Wi-Fi proxy host to set, no certificate install on a desktop, and no requirement that your phone and computer share a network. It is ideal for debugging on real devices, on cellular, or in the field — and it still offers a desktop app and remote pairing when you want a big screen.
How to Choose
Pick based on where your debugging happens. Desktop-heavy workflow with advanced scripting needs? Charles is excellent. Frequent real-device testing and a desire to skip proxy setup? A mobile-first tool will be faster day to day.
Where the Time Actually Goes on a Mobile Team
One thing neither tool's feature comparison captures: on a mobile team, the slowest part of fixing a bug usually isn't the fix. It's getting everyone to see the same thing.
A tester runs into an issue and attaches a screenshot. The frontend developer tries the same steps and can't make it happen. The backend developer searches their logs and can't find the matching request. Each handoff is a guess, each guess costs a day, and the bug stays open while three people describe it differently.
What collapses that cycle is sharing the actual request and response from the device where the problem occurred — not a description of it, the real thing. Once QA can capture that traffic and pass it to frontend and backend, everyone is finally debugging the same data instead of arguing about symptoms. Capturing on the device and making that traffic easy to share across the team is exactly what Moni Proxy is built around, and it's often where the real time savings come from.
Frequently Asked Questions
Is Moni Proxy free?
Yes, Moni Proxy has a free tier forever with HTTPS capture and inspection. Pro features and a cross-platform license are a paid upgrade, starting at $71.
Does Moni Proxy work on iPhone and Android?
Yes. Moni Proxy runs the proxy directly on the device using native VPN and certificate APIs, so you can capture decrypted HTTPS traffic on a real iPhone or Android phone with no computer and no jailbreak or root. It also has a macOS app.
Can I share captured traffic with my team?
Yes. You can capture requests and responses on the device and share them, which speeds up the handoff between QA, frontend and backend when reproducing an issue.
Does Moni Proxy replace Charles Proxy?
It depends on your workflow. Charles is a mature, powerful desktop proxy and remains a great fit for computer-based debugging. Moni Proxy focuses on a mobile-first, on-device workflow and on sharing traffic across teams. Plenty of developers use both.