AI App Builder for Google Sheets – Apps Script Source Code

An app builder that turns a sentence into a working system. Type "build a gym membership management app" and the AI designs the database schema, shows you the tables and how they relate, and — once you approve it — creates every sheet in your Google Sheet automatically. From there you get data tables, a print designer and a drag-and-drop dashboard, without writing a line of code.

What it does

The schema is the starting point, not the finish line. You can add tables and columns by hand, or describe what is missing — "add more columns important for my business" — and it rewrites the structure and applies the change. A sample-data generator then fills every table with realistic rows so the app is testable immediately, rather than an empty shell. Reset and rebuild wipes it all and starts over when you want a different app.

Highlights

• Relationship diagram showing how the generated tables link to each other
• Print and invoice designer — auto-detect a layout, preview it, then redesign it by prompt
• Dashboard builder with drag-and-drop KPI cards in three sizes, recent-rows widgets, and bar and line charts with group-by
• Ten ready-made schemas to start from: CRM, inventory, library, task tracker, event manager, HR, POS, clinic appointments, school management, expense tracker
• Email automations that fire on a row being added or updated, with conditions, an AI-written message and a scheduled trigger
• Roles and per-role access, plus user management
• Built-in AI chat for questions, drafting and planning while you build

Bring your own key

It runs on an API key you supply — Gemini or OpenAI are both supported, and the key goes in settings. Google AI Studio issues a Gemini key at no cost at the time of recording, which is what the video uses, so the builder itself does not require a paid AI subscription to try.

Who it is for

Anyone who keeps needing a small internal tool — a membership tracker, a booking log, a stock register — and does not want to commission a developer or learn Apps Script to get one.