Building a mobile app like Instagram without writing code is now easier than ever, thanks to tools like Bubble's no-code landscape. The process involves registering for a free account, completing introductory lessons to understand common Bubble features, and structuring the design and database of your application. You can then start building workflows to create interactive pages, such as user profiles, settings pages, and upload pages, using visual design tools and dynamic elements like repeating groups. Additionally, you can build custom data fields, send data between pages, and configure your database to power your application. With Bubble's pre-built templates and plugins available, users can also purchase a template or start from scratch without any additional costs, making it possible to launch an Instagram-like app for as low as $25 per month.