Magisto is a very simple video editor app. With this app, you don’t get any features such as adding text overlays, tilt shifts, etc to your video. However, the charm of this app lies in its simplicity. Within the app, you can import your photos and videos, and choose a theme for the video. There are a number of themes available, such as dance, among many others. Once you’ve done that, you get the option to add music to the video, as well as options to decide how long you want the video to be.
Kik is a popular video chat app. It's actually a text chat app with video chat features. The app features single or group chats, support for most types of media sharing (GIFs, video, images, etc), and some extra stuff like stickers. Kik is a popular chat service for mobile gamers. For instance, I've used it for Clash of Clans in the past. It also doesn't rely on your phone number. You just need a standard user name to use much like Skype and unlike WhatsApp or Google Duo. It's colorful, so those who want something a little more serious may need to keep looking. Otherwise, Kik is a perfectly acceptable app for both video and text chats.
CutStory is a video editing app for Instagram stories. It makes it easy to chop a longer video up into the required length for Instagram Stories (15 seconds maximum per clip). This way, you can repurpose longer videos—from your brand’s YouTube library, for example—and create more robust content without having to continually stop and start the camera.