Simple file downloader for iOS based on NSURLConnection. Downloader writes the data into file, not into memory.

How to install:
Using Cocoapods:

pod 'MBFileDownloader'

Or just copy the following files into your project:

MBFileDownloader.h
MBFileDownloader.mm

How to use:

MBFileDownloader *fileDownloader = [[MBFileDownloader alloc] initWithURL:url toFilePath:filePath];
[fileDownloader downloadWithSuccess:^{
    NSLog(@"success");
} update:^(float value) {
    NSLog(@"%f", value);
} failure:^(NSError *error) {
    NSLog(@"%@", error);
}];