Google AI Studio 2.0: build FULL-STACK apps (Firebase integration tutorial)

AI moves quickly. Read today’s 2 minute AI brief, for free → https://nocode.mba/newsletter?refer=y... Google just updated their free AI app builder, Google AI Studio. I've used it before but the real question is: is the new update any good? And should you use it over paid tools like Base44 and Lovable? Get a FREE lesson from our AI app building course here: https://www.saascourse.ai/ Learn more about other AI app builders here:    • The 6 BEST vibe coding tools right now (we...   In this video, I put it to the test by building a personal finance and budgeting app from scratch. I also try out the brand new Firebase database integration for the first time to see how well it actually works. ━━━━━━━━━━━━━━━━━━━━━━ WHAT IS GOOGLE AI STUDIO: ━━━━━━━━━━━━━━━━━━━━━━ AI Studio is more than just an app builder. It's a tool for developers to use Google's AI models for free. You can explore all of Google's AI models in one place, test image models, and use it like a ChatGPT-style interface. Building apps is just one feature — but that's what we focus on in this video. Quick tip: You can get to AI Studio by just typing ai.dev into your browser. ━━━━━━━━━━━━━━━━━━━━━━ BUILDING THE APP: ━━━━━━━━━━━━━━━━━━━━━━ The layout is similar to tools like Base44 or Lovable. Chat on the left, app preview on the right, and a code tab so you can see everything being built. You can also use speech-to-text and add files for extra context. The prompt I used: "Let's build an AI app that helps users manage their personal finances and budget effectively to save money." It built out a solid first version with an expense tracker, budget categories, charts, and even a built-in AI financial advisor that gives advice based on your actual data. One thing that makes AI Studio unique is the Gemini AI features it builds into your app. Because it's Google, you also get seamless access to things like Google Maps data — something you wouldn't get by default with OpenAI. ━━━━━━━━━━━━━━━━━━━━━━ THE FIREBASE DATABASE (NEW): ━━━━━━━━━━━━━━━━━━━━━━ This is where things get interesting. Previously, AI Studio apps didn't persist data — if you reloaded, everything was gone. Now you can enable Firebase (Google's backend database) with one click. Firebase is basically Google's version of Supabase. It handles your database AND user authentication. I've always found Firebase a bit intimidating compared to Supabase, but AI Studio makes the setup really easy. Honestly, this is the easiest Firebase setup I've ever done with any AI coding tool. It also added Google login automatically, so users can sign in with their Gmail account. Once logged in, data saves to your specific account and persists across sessions. One note: the Firebase setup did take longer than other database setups I've seen. But it worked, and that's what matters. ━━━━━━━━━━━━━━━━━━━━━━ HOW TO USE AI STUDIO BEST: ━━━━━━━━━━━━━━━━━━━━━━ My recommended workflow is to start your app on AI Studio (free), get the Firebase database and auth set up, then sync to GitHub and continue building in Cursor or Codex. Use AI Studio as the starting point, not necessarily the final destination. You can export all the code and sync to GitHub, so you're never locked in. This is great because the Firebase connection will already be set up for you when you move to another tool. ━━━━━━━━━━━━━━━━━━━━━━ WHY IT'S FREE: ━━━━━━━━━━━━━━━━━━━━━━ Google's strategy is smart. They let you build for free, add Gemini AI features to your app, and then you pay for those AI features as your app gets real users. Once you publish, you'll need a Google AI API key for the AI functionality, but the building itself is free. ━━━━━━━━━━━━━━━━━━━━━━ MY TAKE: ━━━━━━━━━━━━━━━━━━━━━━ Overall, I'm really impressed with the update — specifically the Firebase connector. Everything else feels similar to before, but the fact that Firebase actually works and is this easy to set up is a big deal. Combined with it being free, AI Studio is definitely worth checking out. If you want to use Firebase for your app, I'd recommend starting here. If you prefer Supabase, tools like Lovable or Cursor might still be a better fit. ⏰ TIMESTAMPS: 0:00 - Introduction and prompt 1:03 - AI Studio overview 1:48 - Interface walkthrough 4:20 - First version of the app 6:15 - AI financial advisor feature 9:26 - Adding Firebase database (NEW) 13:06 - Final thoughts and review #googleaistudio #firebase #aiappbuilder #nocode #gemini