Back in 2008 we created a huge set of 250 free iPhone ringtones for people to download and use on their iPhones. The page has been updated to put all of the ringtones in one huge list, make it easy to preview the tones, and also easier to install them directly on your iPhone. Check out this tutorial on how to download them without needing to sync with a computer and iTunes.
In my new course, I try to help you get the most from iCloud. Here is an excerpt from the first lesson which explains how cloud services work. The course then goes on to show you how to set up iCloud on Mac and iOS. Further videos explain each feature of iCloud such as iCloud Drive, Photos, data syncing, backups, email, sharing and more. You can learn about this and more in the new Guide to iCloud course at https://macmost.com/icloud
After updating to Mojave, many Mac users see a message saying that an app they are trying to use needs to be updated and won't work with future versions of macOS. By future versions, that means the next major update of macOS, probably coming in late 2019, not minor updates. Before then, you can update to a newer version of that app, or find an alternative app to use in its place.