BuildBrief: 4 Real Apps You Can Launch With Google's New Image AI

Google just dropped Nano Banana (Gemini 2.5 Flash Image).

Images in seconds. Costs ~4¢ each generation.

It's basically Photoshop, just with prompts.

👇 Here are 4 real app ideas you can launch this weekend and monetize by next week:

1. Outfit + Background Swapper

Replace clothes in selfies with 100% realistic try-ons.
Swap backgrounds too → Huge fashion + consumer play.

Outfit and background swap example

2. Interior Redesign

Upload your living room → change wall color, furniture, lighting. Hyper-realistic results. Sell to realtors selling homes.

Interior redesign example

3. People Remover

Upload any photo → erase strangers or photobombers instantly. Simple tool, massive demand (social, travel, weddings, etc).

People remover example

4. Photo → 3D Model Converter

Take any building photo → instantly generate an isometric 3D-style view.
Great for architects, real estate, or creators making design content.

Photo to 3D model example

And to be honest, most people don't even know this exists...

Choose one idea. Build it this weekend. Launch Monday.

---

Happy building!
– Kristoffer, BuildWithAI

PS: Here's the link to the tool if you don't feel like searching yourself, haha: https://ai.studio/banana