LiveDepot
A library for simple file downloading and inventory management for iOS. Including background transfers, mirrors, thumbnails, proper timeouts, persistent deferred retrying, reachability integration, and an elegant blocks based API. It's NSURLSession for download tasks, on lean steroids.
APACHE-2.0 License
LiveDepot 
LiveDepot: A library for simple file downloading and inventory management for iOS. Including background transfers, mirrors, thumbnails, proper timeouts, persistent deferred retrying, reachability integration, and an elegant blocks based API. It's NSURLSession for download tasks, on lean steroids.
Copyright & License
Copyright 2014 Goonbee
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in compliance with the License. You may obtain a copy of the License in the LICENSE file, or at:
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.