This is how I applied Febric-SDK to my analytics crash app
Hope this helps someone out there.
1.After registration → go to
https://fabric.io/downloads
2.Download the SDK for Xcode

3. Extract the downloaded zip file and install Fabric.
you can now see the menu icon on top of the Status Bar on your Mac.
Just login with the account on the screen above.

and install Crashlytics by clicking the Install button

4. Now this will guide you through a step that will help us add a script to Xcode
also it will give Script, copy and paste the text file to your Mac, we should use it later in the Xcode settings
here is the link.
5. How to add run script build phase
let's do it..
5.1. Go to Xcode project → Build phase →

5.2. in the upper left corner click "New start script Phase"

5.3. paste the script that you copied earlier

Good thing we're almost done !!
5.4. Now in the Febric menu, you will go to the drag fabric kit icon in your Xcode project, which will actually add the SDK to your project.

5.5. after you can see the SDK framework ( Fabric.framework, Crashlytics.framework ) added to the project, you need to configure the AppDelegate file
5.5.1 add import statements
to the file AppDelegate.m
#import <Fabric/Fabric.h> #import <Crashlytics/Crashlytics.h>
5.5.2 now add "[Fabric with: @ [CrashlyticsKit]]; to the didFinishLaunchingWithOptions method
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
- Here it is! you can go to the Crashlytics Dashboard to see the report after starting the debugging application.
go to → https://www.fabric.io/settings → click on the toolbar button

Hooray!!