Brainator

Brainator is an AI worksheet generator that lets teachers and parents create custom worksheets, puzzles, and activities for any subject and grade level in seconds — no subscription required.

What is Brainator?

Brainator is a desktop application for Mac and Windows that uses AI to generate printable worksheets based on a plain‑English text description. Describe what you need (e.g., “3rd grade multiplication”), and it outputs a print‑ready PDF with an answer key. Developed by Shaik, a parent who wanted a one‑time‑payment alternative to monthly services, Brainator works offline after initial setup using your own OpenAI API key.

Key Features

• 8 worksheet generators — Math (addition to algebra), AI worksheets (any subject), word search, crossword, sudoku, mazes, coloring pages, and a Vault of pre‑made sheets.
• Unlimited custom worksheets — No quantity limits; each worksheet is generated uniquely per your prompt.
• Auto‑generated answer keys — Every worksheet includes a separate answer key for quick grading.
• One‑time pricing — $49 lifetime access (or $5/month) with no subscriptions, no upsells, and all future updates included.
• Works offline — After downloading and setting up your API key, you can generate worksheets without an internet connection.
• 90‑day money‑back guarantee — Full refund if not satisfied within 90 days of purchase.

Who is it for?

• Teachers (K‑12) — Create differentiated worksheets for students at various skill levels without searching for pre‑made ones.
• Homeschool parents — Generate unlimited practice sheets tailored to each child’s exact grade and topic.
• Tutors — Produce personalized worksheets for multiple students with different needs, quickly and cost‑effectively.

What can you do with Brainator?

• Create math worksheets — Specify number ranges, operations, and difficulty (e.g., “2nd grade addition under 20”) for unlimited unique practice problems.
• Generate puzzles and coloring pages — Build word searches from custom vocabulary, crosswords, sudoku, mazes, and coloring sheets for any theme.
• Produce worksheets for any subject — Use plain English prompts to generate sheets on niche topics like “solar system word search” or “pre‑algebra equations”.

How does Brainator work?

1. Download and install the desktop app (no account required).
2. Obtain a free OpenAI API key and enter it in the app (guided setup takes about 2 minutes).
3. Type a description of the worksheet you need.
4. Click generate — a print‑ready PDF with answer key appears in about 30 seconds.

Pricing

Brainator offers two options: a lifetime license for a one‑time payment of $49, or a monthly subscription at $5/month. The lifetime license includes all 8 generators, unlimited worksheets, offline use, future updates, and email support. Additionally, users pay OpenAI directly for AI generation costs — approximately $0.001 per worksheet (about $1 per 1,000 worksheets). A 90‑day money‑back guarantee applies to the lifetime purchase.

FAQ

Is Brainator really a one‑time payment?

Yes. The $49 lifetime access has no recurring fees, no subscription renewals, and no “premium” upsells. All future updates are included. You only pay OpenAI for the actual AI usage (~$0.001/worksheet).

Do I need an internet connection?

An internet connection is required for initial setup and to generate worksheets (since it uses OpenAI’s API). However, once created, PDFs are stored locally and can be printed offline.

What grades and subjects does it cover?

Brainator works for any grade from K‑12 and any subject. You describe what you need in plain English — the AI adapts to your specifications. Example: “4th grade long division” or “solar system crossword.”

Is there a free trial?

There is no free trial, but the 90‑day money‑back guarantee lets you try it risk‑free. You can also start with the $5/month monthly plan and upgrade to lifetime anytime.