The VLLO app is a great tool for editing videos on your smartphone. Upon opening the app, you can easily create a new project or open an existing one. You can select videos or images from your phone's files or record something directly through the app. The app offers different aspect ratios and content modes to customize your project.

On the editing screen, you can add audio, stickers, text, and filters. There are various effects to choose from, including graphic transitions and elaborate transitions. You can also adjust the speed and frequency of sound effects, and do a voiceover. The app allows you to output your project as a video or a GIF. While there are many controls and settings available, refinement is down to practice and skill.