C# Shell .NET IDE

A complete, C# / .NET IDE that runs on your Android device — no server, no emulator, no PC required. Write, compile, and run real .NET programs with the CoreCLR, right where you're standing.

[Editor]
- C# 15 editor with syntax highlighting and Roslyn-powered IntelliSense
- Real-time error checking as you type, plus a code-actions lightbulb with quick fixes and refactorings
- Find & replace, multiple editor themes, adjustable font size, invisible characters
- NuGet dependency support

[Run, debug, test]
- Console apps and full .NET MAUI (GUI) apps
- Step-through debugger with a live object inspector
- Built-in xUnit test runner and Test Explorer
- Export a runnable program and pin a home-screen launcher shortcut to it
- Build, sign, and install an APK of the app you just wrote

[Projects & source control]
- Multi-project solutions (.sln / .slnx) with a Solution Explorer
- Dual-pane file manager
- Built-in Git: clone, commit, browse history, and a syntax-highlighted side-by-side diff viewer

[AI coding assistant]
- Chat with an AI assistant that can read, search, and edit your files, run your code, and call tools through MCP
- Choose your backend: an on-device model, Ollama, OpenRouter, or any OpenAI-compatible API
- Connect your own MCP servers for extra tools

[Learn]
- Built-in coding exercises and practice tasks

[Free with optional Premium]
The app is free to use and shows ads. A one-time Premium purchase removes them.

[Runtime Note]
This is not Visual Studio or Windows.
This app runs on Android and is subject to some of the OS limitations.
Hence Windows-only technologies can't work on Android at all.
This includes WPF, UWP, Windows Forms, the Windows API, and all components dependent on them.

Your device requires free storage of at least 1.2 GB to properly install, even though the app takes up only about 400 MB when the runtime is unpacked.

[Device requirements]
This app runs a full .NET runtime and compiler infrastructure on your device, so it needs real memory.
- Minimum: 3 GB RAM. Below this the system can easily close the app to reclaim memory.
- Recommended: 6 GB RAM or more, and a 2 GHz 8-core CPU. Required for smooth functionality without freezes or the system running out of memory.
Running a MAUI or ASP.NET Core app you have written starts a second process, which increases memory use.

[Issues and bug reports note]
Please don't submit bug reports as Google Play reviews as they have response length limits, don't support attachments further limiting the possibilities for a bugfix, and I will likely never see them. The most robust way to submit a bug report is at the GitHub repository (link at the bottom), however an email to radodim0@gmail.com is also good if the data is detailed or unambiguous.
Because the majority of negative reviews are related to bugs but are very vague and almost never respond regardless if asked for more information or told that the bug was fixed, I no longer take the considerable time to ever through reviews manually and respond myself.
Instead, reviews are classified by AI — either receiving an automated response directing you to GitHub/email, or being forwarded directly to my inbox if actionable. Reviews with feedback are forwarded weekly to my email.

GitHub Issues: https://github.com/radimitrov/CSharpShellApp/issues/new

Recent changes:
* Upgrade to .NET 11