In the midrange, there's Adobe Premiere Elements, which is cross-platform between Macs and PCs, and offers a lot more features and lots of help with creating effects. Professionals and prosumers have powerful, though pricey options in Final Cut Pro X and Adobe Premiere Pro. Final Cut is a deceptively simple application that resembles iMovie in its interface and ease of use, but it offers massively deep capabilities, and many third-party apps integrate with it for even more power. It also makes excellent use of the Touch Bar on the latest MacBook Pro, as shown in photo above. Premiere Pro uses a more traditional timeline and adds a large ecosystem of companion apps and plug-ins. It also excels in collaboration features.
ActionDirector is one of the most popular video editing apps on PC. It's also available on Android. It does the basics. You can import clips, edit them, and render the video. You can do things like add your own music, trim and cut video, add text, employ slow motion, and more. It's one of the few video editor apps that also supports 4K video. You'll have to check and see if your device supports it, though. The developers have a nifty tool linked in the Google Play Store to see if yours can. It also gets frequent updates.
Signal Private Messenger is one of the most popular privacy chat apps. It features end-to-end encryption for all messages, voice calls, and video chats between two Signal users. It focuses a lot on individual chats. There are group chat features, but it's mostly for personal use. This is one of the biggest differences between it and rival privacy chat app Telegram. Video calls worked fine in our testing so we have no trouble recommending them. It's a neat way to get some encrypted chats as well. The app is also completely free and open source. You can't really go wrong with it, but there are better video chat apps if you need group video chats.