BookAI.chat vs Duolingo Max (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: BookAI.chat does not list a price
Free plan
Tie
Both have one
Higher rating
Duolingo Max
3.0 against 4.6
Same job?
Yes
Both are Education tools

Side by side

Compared on	BookAI.chat	Duolingo Max
Our rating	3.0	4.6Better
Starts at	Free	$14/mo
Free plan	Yes	Yes
Category	Education	Education
Plans	Free	From $14/mo
Key features	Chat about a book from its title and author, no upload needed Shortcut prompts for a summary, main idea or ending explanation Support for 30+ languages A small library of ready-to-try sample books GPT-3.5 on the free tier, with a GPT-4 option marked PRO	Explain My Answer for detailed grammatical feedback Roleplay for AI-powered conversation practice Built on GPT-4 as a premium layer over the base app Free base app with a massive existing user base Extends Duolingo's established gamified format
Pros	No upload or file needed to start a conversation Free to try immediately, in a reader's own language Shortcut prompts put the first questions within reach	Built on top of the most widely recognized language-learning app Explain My Answer adds real depth beyond simple right-or-wrong feedback Roleplay offers genuine open-ended conversation practice
Cons	Answers come from the model's training, not the actual book text, and can be wrong No pricing page, and the GPT-4 PRO option has no stated price Not a source for quotes, page references or citations	Max features require a premium subscription on top of the base app AI features are additive rather than a fundamentally different learning approach Conversation practice quality varies by language and scenario
Company	markdoppler	Duolingo, Inc., founded 2011

Prices come from each vendor's pricing page, last checked 20260922. Check the vendor before you buy.

FAQ

Questions people ask

Is BookAI.chat better than Duolingo Max?

In our reviews BookAI.chat scores 3.0 and Duolingo Max scores 4.6. The better pick depends on the job. BookAI.chat: Free chat tool that discusses a book using only its title and author, no upload needed, in 30+ languages. Duolingo Max: The premium AI tier inside the category's most recognized app.

Which is cheaper, BookAI.chat or Duolingo Max?

BookAI.chat: free. Duolingo Max: from $14/mo.

Do BookAI.chat and Duolingo Max have free plans?

Yes, both have a free plan.

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