Facebook provides the easiest way to track success of App Ads, implement powerful sharing or let people log into an app with Facebook. Among other tools, this SDK provides anonymized audience insight about the people interacting with the app as well as a way for people to login to the app through Facebook. It also contains five component SDKs that can be connected to individually.
Sharing tool for Facebook messenger SDKs. Facebook plans to launch a "lighter, better, simpler" Messenger for iOSand Android. From August 15, 2019 and on, updated versions of the app will not support Share to Messenger SDK. Developers will need to make changes to adjust.
GooglePlus allows users to sign in and share with Google+ from third-party apps. The SDK also provides Google+ APIs for the app to access the list of people in user-selected circles and to read and write user's app activities.
Tumblr SDK is an unopinionated and flexible library for easily integrating Tumblr data into your iOSor OS X application. Tumblr SDK is open source and contains an API which can easily be integrated into your project.
The Spotify iOSSDK allows your iOSapplication to authenticate users, as well as interact and always stay in sync with the main Spotify application running on the user’s device in the background. For the SDK to work the iOSdevice must be on iOS9 or higher and the Spotify app must be downloaded to the device.
The LinkedIn mobile SDK for iOSdecreases your app's time to market by providing out-of-box support for LinkedIn natively inside your iOSapplications, saving you time to work on the unique parts of your application that matter the most. The LinkedIn SDK provides single sign-on (SSO) authentication, in conjunction with the official LinkedIn mobile application, a convenient wrapper for making authenticated calls to LinkedIn's REST APIs, deeplinking to additional member content in the official LinkedIn iOSapp, and a sample application that demonstrates all of the SDK's features.
The VK SDK is a iOSlibrary for working with VK API, authorization through VK app, using VK functions. To authorize via VK App you need to setup a url-schema for your application, which looks like vk+APP_ID (e.g. vk1234567).