That said, with Android it is possible to install apps without going through Google. The latest is InsTube – Free Video and Music Downloader just for Android—you can only get it at InsTube's site. You download the APK (Android application package) file to sideload on an Android device. Find it in your device's downloads and click it to install. (You may have to go into your security settings and enable "Unknown sources.") There is a similar side-load app from YTD.
BackBlaze doesn't have an offline component, so you'll have to handle that yourself, but it's by far one of the most affordable options on the market. Accounts are $5/mo (you get a break if you pay up front for one or two years), and you can add more computers to the same account for another $5/mo. You can read more about Backblaze's pricing options here.
When you’re looking for something to watch or listen to you want something that you’re going to enjoy, but you also want a good amount of value. With downloading an entire YouTube channel, you’re not going to have to worry about that because you’ll be able to check back in on a number of different videos and different episodes that you may or may not have seen before. This also gives you a whole lot more freedom to check out something different without having to worry about downloading yet another episode or video that you don’t have the data for.
No honorable mentions this week, as the nominations dropped off pretty sharply from these five. Some of you pointed to your own kind of franken-backup solution that made use of traditional cloud storage services like Dropbox and Google Drive in addition with desktop utilities and clients that can automatically copy whatever you want from your computer to specified files and folders in those services, which is a great option if you want the absolute ultimate in control.
Not to be confused with the unrelated "pro" above, Video DownloadHelper supports a huge number of sites—even those for adults. You'll know a video is downloadable when the icon for the extension animates when you're on the webpage. Video DownloadHelper for Chrome has stopped working with YouTube—so it could get placement in the Chrome Web Store. You can get around that by using the Video DownloadHelper extension for Firefox. The developer has a Kiva initiative page, where it prefers you donate funds to those in need, which has raised over $137,700.
CrashPlan is completely free if you're just doing local backups, but even online backups are affordable, with CrashPlan+ accounts starting at $2/mo (per computer) for 10GB of online backup storage, and going up to $4/mo (per computer) for unlimited online backup storage and $9/mo for unlimited online backup storage for a whole household. You can check out their plans here, and try them free for 30 days with a new account.
Another workaround: Go back to the desktop and try AnyTrans ($39.99 for a single computer), a file manager for iOS devices that has an integrated downloader supporting 900 sites, including YouTube and Facebook. It'll transfer the videos to the iPhone for you over the USB cable. Even if you don't pay for AnyTrans, the download option remains and is free forever.