iDownload PLUS
iOS is one of the most versatile smartphone ecosystems, but the entire Apple restriction scene bogs it down for advanced users. Thankfully there are third-party apps such as iDownload PLUS, a free download manager for iOS developed by AppFactor and said to be one of the most powerful and swiftest download managers on the App Store.
iDownload PLUS removes the restrictions on the number of download files at one time. This is a major plus point for all iOS users on an unlimited data plan.