What's an app?
Learn what apps are and why building your own is more accessible than ever with AI.
Software is all around us. From the alarm clock that wakes us up in the morning, to the social media site that connects us to our loved ones, to the web browsers you're reading this on! An application, or app, is software designed to perform a specific task for a specific type of person.
For decades, building software required specialized education and professional training. This meant it was a power that was limited to a select few. Today, due to rapid advancements in AI technology, creating apps is more accessible than ever. But accessible doesn't mean effortless. Like anything worth making, great software still requires patience, dedication, and craft. The difference? Now you can automate boring tasks, visualize complex data, build games, or solve problems at work - without waiting for someone else to do it for you.


Today, with AI, it's sometimes faster to build exactly what you need than wrestle with a tool that almost works.
You may be wondering why you should create an app at all, versus use existing tools like Google Sheets or Notion. Making your own app is useful when:
- You want it YOUR way -- custom and specific tools built unique to you
- You've hit the limits of existing tools
- You want a repeatable, consistent (and maybe profitable!) solution to a recurring problem
Let's run through some apps that are possible to create on Replit:
The takeaway: with AI-powered development, the barrier between having an idea and building a working app has never been lower. Whether it's a creative visualization, a productivity tool, or something entirely unique to your needs, you can bring it to life without years of coding experience.
Check Your Understanding
In which of the following cases might you create your own app?
Select all that apply