Best AI Book Summary Apps for iPhone (2026)
AI book-summary products differ in source eligibility, content format, platform support, and current plan terms. Summio supports eligible catalogue books plus defined additional source types; test the titles and files you actually use, and verify every provider's current product before choosing.
The shortlist
Summio
AI-native and multi-source — eligible catalogue books, public YouTube videos with usable transcript context, compatible public articles, and compatible text-based PDFs become structured summaries with source-context chat.
Blinkist
A provider in the curated book-summary category; verify its current catalogue, audio, platform, and plan details on the provider site.
Headway
A provider in the curated book-summary category; verify its current habit, audio, platform, and plan details on the provider site.
Shortform
A provider in the editorial book-guide category; verify its current guide format, catalogue, platform, and plan details on the provider site.
Common questions
How should I compare plan prices?
Prices, billing periods, trials, and allowances change. Compare the current terms shown at each provider checkout together with the features you will actually use.
Which app summarises the most books?
Catalogue sizes and source coverage change. Search the titles you actually need in each product; Summio supports eligible catalogue books and compatible text-based PDFs rather than promising universal coverage.
Can these apps summarise YouTube videos and PDFs too?
Source support varies by provider and can change. Summio currently supports eligible catalogue books, public YouTube videos with usable transcript context, compatible public articles, and compatible text-based PDFs; verify other products on their current sites.
Start reading with Summio
Use Summio in your browser, or get the iOS app from the App Store.