PonyDebugger

Overview

PonyDebugger is a remote-debugging toolkit for native iOS apps, built around a client library in the app and a gateway that serves Chrome Developer Tools. It is best suited to iOS developers who want network and interface inspection in that browser-based workflow. Its focused set of views is useful, but it requires app integration and a separate server.

Key features

Network inspection: The client can proxy requests made through NSURLConnection and NSURLSession, including those made by AFNetworking and other libraries that use those APIs. Since PonyDebugger forwards traffic rather than sniffing it, HTTPS requests can also be inspected. The broad automatic-forwarding option swizzles methods from private APIs, so keep it to debug builds; that caution makes it unsuitable as a production monitoring tool.

Core Data browsing: Register managed object contexts to browse entities and managed objects. The stores are read-only, so this is an inspection aid rather than a way to alter app data. CoreData.framework must be linked even if you do not use this feature, an unusual integration cost to account for.

View hierarchy and logging: Chrome Developer Tools can show the app’s view hierarchy, highlight corresponding views, edit displayed attributes, and remove nodes. Remote logging through PDLog and PDLogObjects can capture text and recursively inspect object properties. Together, these tools give iOS developers several kinds of runtime visibility in one interface, though they remain tied to the app client and gateway connection.

Pricing

PonyDebugger is free: the plan costs nothing and includes the iOS client and gateway server under the Apache License 2.0. There is no paid tier to unlock, so the trade-off is not a feature cap but the engineering work of integrating and maintaining the client and gateway. Installation options include CocoaPods or manual setup for the client, and a userland virtualenv procedure for the gateway.

Platforms

The documented client targets iOS 5.0 or above and uses ARC and SocketRocket as its WebSocket client. The gateway serves Chrome Developer Tools and listens on localhost port 9000 by default. To connect from another computer or device, it can be configured to listen on 0.0.0.0; the localhost default is a deliberate security measure, so remote access should be enabled only when needed. The quick start also requires Xcode Command Line Tools. Although the platform labels include macOS, self-hosted, and web, PonyDebugger’s stated purpose is debugging native iOS apps rather than providing a general debugger across those platforms.

Who it's for

Choose PonyDebugger if you build native iOS apps and want proxied network visibility, read-only Core Data inspection, view-hierarchy tools, and remote logging through Chrome Developer Tools. It is a better fit for developers comfortable adding a client to their app and running a gateway than for anyone seeking a standalone debugger. The private-API swizzling warning is a firm reason to confine automatic traffic forwarding to debug builds.

Pros and cons

• Pro: Proxied HTTPS inspection works without packet sniffing, and the client covers requests made through NSURLConnection and NSURLSession.
• Pro: Network, Core Data, view-hierarchy, and logging tools are combined in a free, Apache-licensed package.
• Con: It needs both app-side integration and a running gateway, with Xcode Command Line Tools required for the quick start.
• Con: Automatic forwarding relies on private-API method swizzling and should be used only in debug builds.
• Con: CoreData.framework is required even when Core Data browsing is unused, while the browsing itself is read-only.

Alternatives

Browse the Debuggers category for more options. Choose LLDB instead if you need a free debugger across Android, iOS, Linux, macOS, and Windows. For binary analysis, IDA Pro offers a free tier with x86-32 and x86-64 disassembly and two cloud-based decompilers, while IDA Pro Essential costs 1099.00 USD. Perl Debugger is a free choice for Perl debugging and requires the program to compile correctly before debugging. For embedded microcontroller work, Black Magic Debug is a free JTAG/SWD debugger, but it requires compatible probe hardware and a suitable toolchain. pyOCD, GDB, FlowStorm, and OpenOCD are also free alternatives.

Verdict

PonyDebugger is a strong fit for native iOS developers who want several runtime inspection views in Chrome Developer Tools without paying for the software. Its main appeal is the combination of HTTPS-capable network proxying, Core Data inspection, interface tools, and remote logging; look elsewhere if you need a debugger that works without client-and-gateway setup or if your workflow cannot keep private-API-based forwarding confined to debug builds.