How do their growth rates compare?

AI Author has a month-over-month growth rate of —; WriteABookAI has -14.1%.

How does pricing compare?

AI Author: Freemium with weekly premium subscription. Free download with in-app purchases. A premium subscription is offered at USD 3.99 per week according to the App Store listing, unlocking unlimited access to the writer database and unlimited text-to-PDF conversions. Prices in other countries vary and may be converted to your local currency. WriteABookAI: One-time purchase (no subscription). WriteABookAI advertises a one-time purchase instead of a subscription, with no hidden fees. Plan options are sized to your book's length and grant a dedicated access timeframe plus permanent availability of your saved work for viewing and export. Specific prices are shown as dynamic options on the pricing page. A 30-day refund is offered provided you have not written most of the book or already exported it.

What are alternatives to AI Author and WriteABookAI?

Other tools in related categories include ProWritingAid, Dabble, bookbyanyone.com, Inkfluence AI, AIWriteBook.

AI Author vs WriteABookAI — Traffic (0 vs 6.89K), Pricing & Verdict

Open AI Tools

AI Author vs WriteABookAI — Traffic (0 vs 6.89K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	AI Author	WriteABookAI
Official Domain	apps.apple.com	writeabookai.com
Pricing Model	Freemium with weekly premium subscription	One-time purchase (no subscription)
Monthly Visits	0 (0)	6.89K (6,885)
MoM Traffic Delta	0 (—)	-1.13K (-14.1%)
Primary Market & Share	🌐 Global (—)	🇺🇸 United States (37.4%)
Direct Visits / mo	0	2.67K
User Rating	4.3	4.2
Supported Platforms	App	Website

AI Author

Write in the style of famous writers, then export to PDF

Author style imitation

A database of over a thousand renowned writers, with the option to add your own. The app analyses a chosen author's style, grammar and tone and applies them to your draft.

Custom author entries

If the writer you want is missing, you can type their name into the selection list and write in that style, or add them to the app's own database.

PDF export

Turn finished text into a professional-looking PDF in a few taps, ready to share with colleagues, clients or potential publishers.

GoodNotes integration

Copy generated text directly into GoodNotes, so writing, editing and note-taking can stay in one place.