Question: Is there an app that allows me to create a logo on my phone and download it in various formats?

One of the top options is AI Logo Maker. The service, which relies on AI technology, offers a customization interface that lets you pick fonts, colors and layout, and it offers high-resolution files in PNG, SVG, PDF and other formats that are suitable for commercial use. It also offers templates, a smart recommendation system and a variety of pricing plans for different needs.

Another good option is Logo Maker AI. It's available as a mobile app for Android and iPhone, so you can create logos on your phone. It's got a variety of customization options and can export files in PNG, JPG and SVG formats. With its drag-and-drop interface and wealth of customization options, you can fiddle with it forever to try out different variations and create a logo that looks professional.

If you like the idea of more AI behind the scenes, Logo Diffusion has a system that can create custom logos based on a text prompt. It also can convert 2D logos into 3D illustrations and delete backgrounds for transparent PNG files. The app offers several pricing plans, and it owns the assets it generates, so it's a good option for logo creation.

Last is Logome, another powerful option with a lot of features, including more than 100 fonts, solid and gradient colors, and the ability to create branded materials like email signatures and social media posts. It offers instant access to high-resolution files and a fully customizable website, so it's a good option for startups that want to quickly establish a professional brand presence.