Cross-platform development with Visual Studio easy and comfortable. It supports:

Barebone embedded systems and IoT modules (see full list)
C/C++ Linux Applications
Native Android Apps and Libraries
Raspberry Pi and other Linux boards
Linux kernel modules (separate VisualKernel product)
Target your own devices and platforms with Extensibility API

PostSharp is the #1 pattern-aware extension to C# and VB. It allows developers to eradicate boilerplate by offloading repeating work from humans to machines. PostSharp contains ready-made implementations of the most common patterns and gives you the tools to build automation for your own patterns. Developers usually think in terms of design patterns, but with conventional programming languages, they end up writing boilerplate code. PostSharp extends the C# and VB languages with a notion of pattern. The result: shorter, cleaner code that’s easier to write and understand, contains fewer defects and is less expensive to maintain.

Telerik UI for Xamarin offers a variety of the most essential controls and VS item templates to enable every developer, regardless of their experience, to build professional-looking modern mobile applications for iOS, Android and UWP from a single code base.

Wisej provides a platform and set of tools designed to ease the burden of developing, testing, deploying, and maintaining complex business software. It bridges the gap between traditional WinForms-style desktop applications and the web by empowering developers to leverage their existing .NET and C# skills. Developers are able to use the tools they are familiar with, like a pixel-perfect design surface and drag-and-drop controls with the languages they are comfortable with (C# or VB.NET) to build real-time web applications without having to learn HTML, CSS, or jаvascript. They can stay in their favorite IDE like Visual Studio to take advantage of features like IntelliSense, integrated debugging, design surfaces and source control integration. Front-end developers can leverage their knowledge of web technologies to augment applications and seamlessly integrate third-party packages like HTML5 charting libraries and ASP.NET controls.

Telerik UI for Xamarin uses the Xamarin.Forms technology, which makes it possible for developers to build native iOS, Android and Windows Phone apps from a single shared C# code base. The Telerik Chart and Calendar for Xamarin enables developers to easily implement various charting functionalities in their Xamarin.Forms projects and achieve the same scenarios across platforms using a single shared C# code base.

Telerik UI for WinForms includes more than 90 user interface controls you can use to fulfill the most demanding desktop or tablet application requirements. All-way customizable GridView, Form, Chart, Scheduler, RichTextBox and other essential controls enable you to build any Line of Business or Modern application in less time while staying under budget.

ActiveXperts SMS Component provides developers with a fast, reliable and easy to use interface (API) for sending and receiving SMS and Pager messages.

Easy to use API
SMS messaging via GSM modem, SMPP, HTTP and Dialup
Build your own SMSC with the SMPP server API
Pager messaging via SNPP
32-bit ActiveX and 64-bit ActiveX included
Many samples available in C#, VB, ASP.NET and more

Note to new users: Intellisense and build/upload are two seperate functions of Visual Micro. You might see a few invalid intellisense errors (which you should report to the forum). After building a project with substantial code changes intellisense will become more accurate. However for some boards it is only 99% but can easily be extended.... Set the "Errors List" window to "Build Only" and/or "Open Documents Only" if false intellisense errors are annoying you, +report your code + board name to the forum thanks!

Wisej provides a platform and set of tools designed to ease the burden of developing, testing, deploying, and maintaining complex business software. It bridges the gap between traditional WinForms-style desktop applications and the web by empowering developers to leverage their existing .NET and C# skills. Developers are able to use the tools they are familiar with, like a pixel-perfect design surface and drag-and-drop controls with the languages they are comfortable with (C# or VB.NET) to build real-time web applications without having to learn HTML, CSS, or jаvascript. They can stay in their favorite IDE like Visual Studio to take advantage of features like IntelliSense, integrated debugging, design surfaces and source control integration. Front-end developers can leverage their knowledge of web technologies to augment applications and seamlessly integrate third-party packages like HTML5 charting libraries and ASP.NET controls.

Note to new users: Intellisense and build/upload are two seperate functions of Visual Micro. You might see a few invalid intellisense errors (which you should report to the forum). After building a project with substantial code changes intellisense will become more accurate. However for some boards it is only 99% but can easily be extended.... Set the "Errors List" window to "Build Only" and/or "Open Documents Only" if false intellisense errors are annoying you, +report your code + board name to the forum thanks!