Summary Z: Book Summaries 9+

Summary of books, with audio‪.‬

Book Vitals Inc.

Designed for iPhone

    • Free
    • Offers In-App Purchases

iPhone Screenshots


Free book summaries, with audio versions. This app is free, you can read or listen to all the book summaries with no subscription or payment.

Enjoy free book summaries and audio book summaries, from the best books of 2021!

Discover your next read by browsing free summaries and free audio book summaries, published by other readers, from the most popular books and the most famous authors of 2021.

Read or listen to these book summaries
Writers from our community select the best highlights, tips and insights from popular fiction and nonfiction books and present them as an easy to read or listen to book summary. This short book summary has between 6 to 12 ideas. Each idea represents a concept from that particular book.

Enjoy book summaries from many book categories.
You can read or listen to book these book summaries from many book categories such as bible studies, self-help, motivational, self-improvement, self-development, etc.

After you download the app, set up a challenge to read one book a day for 30 days!
Reading or listening to one book summary from a book in Underline takes just 5 minutes. It's easy and fun!

Choose from 2 PRO subscriptions to level up your reading:

• $14.99 billed monthly
• $99.99 billed annually

After your FREE 3-day trial, your subscription amount will be charged to your iTunes Account. All subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Special introductory offers only apply to the first billing term.

What’s New

Version 2.0.5


Ratings and Reviews

4.9 out of 5
256 Ratings

256 Ratings

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After a while every book just disappeared from MyBooks and every single highlight gone.

Developer Response ,

We are sure we can get this fixed! Can you please tell us your username? Simply send us an email at ! Thank you!

Catalin Chivu ,

Reading books in a differently manner

Is great to read a book and take notes in a easy way. Highlights on text is so simple and fun to do. Great app! Highly recommend!!

Developer Response ,

Hello Catalin! Thank you for your review and feedback!!! :D

camilosm ,

Love it!

Super useful to keep notes for the actions you need to start after reading a good book.

Developer Response ,

Hey there! Thank you for the review and feedback. If you ever have ideas on how we can make Underline more useful for you, send us a note to Have a great day!

App Privacy

The developer, Book Vitals Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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