Top 20 NuGet phone Packages

Twilio REST API helper library
C# port of Google's common Java, C++ and Javascript library for parsing, formatting, storing and validating international phone numbers. http://code.google.com/p/libphonenumber/
Take or pick photos and videos from a cross platform API.
Custom control for your Xamarin.Forms project to display HTML content into labels. Ensure you call HtmlLabelRenderer.Init() on each platform! Built against: 3.0.0.550146
Receive information about the device that you are using. Properties such as Model, Operating System, Version, Id, and even the ability to generate a unique Id for your application based off of these properties.
Xamarin and Windows Plugin to In-App Billing. Get item information, purchase items, and restore purchases with a cross-platform API. Read the full documenation on the projects page.
A cross-platform API for authenticating users and storing their accounts.
Check to see if your users have granted or denied permissions for common permission groups on iOS and Android. Additionally, you can request permissions with a simple cross-platform async/awaitified API.
Collection of MVVM Helpers such as ObservableRangeCollection, BaseViewModel, Grouping, and others.
With MR.Gestures you can handle all the touch gestures in your Xamarin.Forms apps.
Non-standard Extensions (utilities) to Xamarin-Auth (refresh-token)
Get network connectivity information such as network type, speeds, and if connection is available. Additional functionality includes the ability to ping a specific host and port number. Ensure you have proper permissions set by reading the README.
NUnitLite provides a simple way to run NUnit tests, without the overhead of a full NUnit installation. It is suitable for projects that want to have a quick way to run tests using a console runner and don't need all the features of the NUnit engine and console runner. Supported platforms: - .NET Fr...
Use this for Microsoft Azure Notification Hubs back end operations. It adds Microsoft.Azure.NotificationHubs.dll to your project. Notification Hubs support sending push notifications to Windows, Windows Phone, iOS, Android, Amazon, and Baidu. For more information on Notification Hub, p...
A cross-platform API for authenticating users and storing their accounts.
Custom calendar control for Xamarin.Forms. Customizable border thickness, color, background colors and formats. Version 1.0.8 or lower Built against: 2.1.0.6521 Version 1.1.0 or above Built against: 2.3.4.231
This project is a cross platform library for Xamarin, which enables a handy use of Google Analytics in your applications.
Xamarin and Windows plugin to perform text to speech functionality. Adjustable pitch, speak rate, locale, and more.
Cross-platform socket API for Xamarin iOS/Android/Forms, Xamarin.Mac, Windows Phone 8/8.1, Windows Store, UWP and Windows Desktop. Includes support for TCP and UDP listeners and clients, as well as UDP multicast.
Twilio helpers for ASP.NET MVC versions 3 through 5.