Since you're probably going to be paying for a backup service for years, cost is an important factor to consider. All the services rounded up here are subscription-based, but they partition their features and fees differently, so it's worth comparing plans closely before committing to one. Most construct pricing tiers based on the amount of cloud storage included, however, or by the number of devices you can use with an account. A few services offer permanent free accounts, but those plans impose paltry storage limits or restrict key features to the paid versions. Watch out for file-size upload limits as well.
By not restricting you to the sync-folder model of cloud storage, you don’t have to worry about making sure you’ve actually moved all of the content you want to backup into that single folder. This also means that if you need to replace your computer because of a hard-drive crash or other mishap, you can restore your exact file structure on your new device.
If you’re in a place where you don’t really have internet, but you don’t want to use up the data that’s still available on your mobile device you can still get access to the information that you want. Downloading and watching videos can eat away a lot of data from your phone plan or it could take up a whole lot of bandwidth that you really don’t want to be using. Instead, you could have the video already downloaded and ready to play without you having to continue using up the data.
Jihosoft 4K Video Downloader is available as a completely free system that actually works for both PC and Mac users, but there’s a paid version as well. What’s really great about this YouTube video downloader is that it actually works for just about any kind of video you want to download, whether that video comes from Facebook, Instagram, Twitter, SoundCloud, or YouTube, so you’re not stuck with just one platform. You’re also going to have the option to download in just about any resolution and still get all the audio and subtitles that usually come with the video. On top of all that, you can convert to any video format or even MP3 audio, so you’re always able to watch (or listen).
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.