iMovie is a part of Apple’s own suite of products for iOS (and macOS), and is a great video editor app for iPhone that you can try. While you may want to use a more powerful editing software on your Mac, iMovie is more than capable of handling video editing on the iPhone. The app is included with the newer generations of iPhones, and you can use it right out of the box to make some awesome videos directly on your iPhone.
As with all software services, pricing and packages are an important consideration when it comes to video conferencing. The prices quoted and the product descriptions below are typically for the lowest level of service per user per month. (For more pricing information, click through to the individual reviews.) All but one of the video conferencing services I tested offers free trials (most for 30 days) and many don't require a credit card on file, which means you don't have to worry about being charged automatically when the trial ends.
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.