The guide for SDK integration is available on Pushwoosh website:
https://www.pushwoosh.com/platform-docs/pushwoosh-sdk/ios-push-notifications/setting-up-pushwoosh-ios-sdk
The sample project is available here:
https://github.com/Pushwoosh/pushwoosh-ios-sdk/tree/master/Samples/iPhone
Documentation: https://github.com/Pushwoosh/pushwoosh-ios-sdk/tree/master/Documentation
Pushwoosh team http://www.pushwoosh.com