Nonfiction42 is the nonfiction arm of the Author42 family. You'll begin with Book Idea Generator. It helps you tweak your idea by analyzing book trends—top competitors, reader reviews, bestseller trends, and audiobook signals—and then guides you from table of contents to finished manuscript. When it comes to writing, the choice is yours: write entirely on your own or generate content with AI support.

The other half of the Author42 family is Fiction42. If you are new to fiction, it offers a coaching experience to help you understand story structure. If you already have a manuscript or prefer to work independently, you can simply upload your work and continue from there.

Gamer42 and Movie42 are separate but related parts of the Author42 ecosystem. Use these applications to adapt your book into a short film or game, or to create an entirely new project, up to two minutes in length. Just note that fully AI-generated books do not meet the U.S. Copyright Office's requirements for copyright protection.

Author42 offers monthly and annual billing cycles. When you subscribe to a paid plan, you start with a 14-day free trial. After the trial, your payment method is charged automatically at the start of each billing period.

You can view your billing history, current plan, and usage on your Billing page. Invoices and receipts are available as PDF downloads.

If your usage exceeds your plan's token limit, overage charges are calculated at $0.0002 per token and added to your next invoice.

Tokens are the unit of measurement for AI processing on Author42. When you use any AI feature (generating text, editing, brainstorming), both your input and the AI's output are measured in tokens.

As a rough guide, 1 token is approximately 0.75 words. So 100,000 tokens is roughly equivalent to processing 75,000 words of combined input and output.

Each plan includes a monthly token allowance:

• Free: 50,000 tokens/month
• Starter: 100,000 tokens/month
• Pro: 500,000 tokens/month
• Studio: 1,000,000 tokens/month

Your token usage resets every 30 days.

When you log in at author42.com, your session is automatically recognized by all Author42 applications, including Fiction42 and Nonfiction42 and any future apps.

This means you only need to sign in once. If your browser doesn't support third-party cookies, we fall back to JWT-based authentication passed between apps.

The Author42 family also includes Gamer42 and Movie42, which are separate applications that Author42 links to. A paid Author42 plan includes access to both Fiction42 and Nonfiction42. However, Gamer42 and Movie42 each require separate sign-ups and have their own pricing.

Yes, you can cancel your subscription at any time from your Billing page. When you cancel:

• Your paid features remain active until the end of your current billing period
• You will not be charged again
• Your account reverts to the Free plan after the billing period ends
• Your content and data are preserved even on the Free plan

You can resubscribe at any time to regain access to paid features.

We accept all major credit and debit cards through Stripe Link, including Visa, Mastercard, American Express, and Discover. Stripe Link also supports Apple Pay and Google Pay in supported browsers. All payment processing is handled securely by Stripe. Author42 never stores your full card number.

We take data security seriously. Here's how we protect your information:

• Passwords are hashed with scrypt and random salts (never stored in plain text)
• Sessions use secure, httpOnly cookies with CSRF protection
• All data is transmitted over TLS-encrypted connections
• Rate limiting protects against brute-force attacks
• We do not use your content to train AI models

For full details, see our Privacy Policy.

Each plan offers progressively more tokens and features:

• Free ($0): 50,000 tokens/month. Great for trying out the platform.
• Starter ($20/mo): 100,000 tokens/month. Fiction & non-fiction support; export to multiple formats.
• Pro ($40/mo): 500,000 tokens/month. Everything in Starter plus Priority support.
• Studio ($80/mo): 1,000,000 tokens/month. Everything in Pro plus Dedicated support.

All paid plans include a 14-day free trial. Annual billing saves approximately 17%. Visit our Pricing page for full details.

Discount codes can be applied on the Pricing page before checkout. There are three types of codes:

• Percentage discount: Reduces your subscription price by a percentage (e.g., 25% off).
• Fixed amount: Reduces your price by a fixed dollar amount.
• Token grant: Adds bonus tokens to your account immediately.

Some codes may have usage limits, expiration dates, or restrictions to specific plans. Each code can typically be used once per account.