Best E Red Book Apps

217+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated June 2026

Every iPhone needs a few good e red book apps. We benchmark 217+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for E Red Book

Halliburton eRedBook® Mobile#1

Halliburton eRedBook® Mobile by Halliburton

Editor's Choice
💼 Business
3.7(30 ratings)
Free
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This mobile application provides instant access to key data and calculations for oil and gas well drilling, cementing, and completion, including pipe dimensions, volume calculations, and unit conversions. With this app, users can quickly look up specifications, calculate volumes, and copy results, making it an indispensable tool for field engineers, business development, and engineering students.

rednote#2

rednote by Xingin Information Technology (Shanghai) Co., Ltd

share, connect, love
Strong Contender
🌐 Social Networking
4.8😐(1.8K ratings)
FreeAdsIn-App Purchases
#13in Social Networking
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Discover diverse lifestyles, trends, and interests with over 300 million users on a popular lifestyle platform. From lifestyle trends to sincere livestreams and insights into celebrities' lives, Xiaohongshu offers inspiration, practical tips, and high-quality post templates to connect with like-minded individuals worldwide. Download now for a unique and enriching experience!

What We Love

  • 🌟 Amazing app with great features
  • 👍 Intuitive and user-friendly interface
  • 💕 Welcoming and supportive community
  • 🌍 Opportunity to connect with diverse cultures

Room to Improve

  • 🔇 Lack of translation options for non-Chinese users
  • 🚫 Strict content moderation and censorship
  • 🤖 Aggressive recommendation algorithm
Red Book®#3

Red Book® by Unbound Medicine, Inc.

American Academy of Pediatrics
Worth Considering
🏥 Medical
4.8(64 ratings)
FreeAdsIn-App Purchases
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This comprehensive resource provides the most up-to-date information on pediatric infectious diseases, featuring content from the latest edition of a report by the American Academy of Pediatrics. It offers a wide range of tools and information, including immunization schedules, vaccine guidance, and disease prevention strategies, making it an essential reference for physicians and healthcare professionals - start exploring now!

More E Red Book apps to explore

4
Ola: Book Cab, Auto, Bike Taxi
Ola: Book Cab, Auto, Bike Taxi
Ola: Book Cab, Auto, Bike Taxi
Book Rides & Order Food online
Free

Book rides easily with just a tap - whether you need a cab, auto, or bike taxi. Get to your destination with convenience and at the best prices.

✈️ Travel
(69K)
5
Busbud: Bus & Train Tickets
Busbud: Bus & Train Tickets
Busbud: Bus & Train Tickets
Find routes & book travel fast
Free

Find the best bus and train routes quickly and easily with our app. Purchase tickets, compare prices, and plan your journey hassle-free. Download now and start traveling!

✈️ Travel
(4.5K)
6
eBooks: American Red Cross
eBooks: American Red Cross
eBooks: American Red Cross
Training anytime, anywhere
Free

Learn lifesaving skills on the go with this eBook reader that provides access to American Red Cross course training manuals, complete with videos, images, quizzes, and interactive content. Study first aid, CPR, and other essential skills anytime, anywhere, and take the first step towards being prepared for emergencies.

📚 Education
(21)
7
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
Read books & PDF files easily!
Free

ReadEra is an app for reading books in multiple formats such as pdf and epub. Enjoy a user-friendly interface and customizable reading experience. Try it now!

📚 Books
(222)
8
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Kindle, Audible, Amazon & more
Free

A platform for discovering, reviewing, and sharing books with a community of readers. Find recommendations, write reviews, and connect with fellow book lovers. Start exploring the world of literature today!

📚 Books
(730K)
9
OYO: Hotel Booking App & Deals
OYO: Hotel Booking App & Deals
OYO: Hotel Booking App & Deals
Best Offer : Book Budget Rooms
Free

Find the perfect accommodation easily with our app that offers a wide range of options to suit your needs. From budget-friendly to luxury stays, discover and book your ideal lodging effortlessly. Download now for a seamless booking experience.

✈️ Travel
(8.9K)
10
Agoda: Cheap Flights & Hotels
Agoda: Cheap Flights & Hotels
Agoda: Cheap Flights & Hotels
Book a hotel, flight & more
Free

Find the best deals on flights and accommodations with our app. Search, compare, and book with ease for your next trip. Download now for exclusive offers and savings!

✈️ Travel
(175K)
11
Bible for Women & Daily Study
Bible for Women & Daily Study
Bible for Women & Daily Study
Women's Devotional KJV Bible
Free

This app offers a collection of Bible verses specifically tailored to empower and inspire women in their daily lives. With daily reminders and personalized recommendations, it aims to provide spiritual guidance and support. Download now for daily inspiration!

📚 Books
(103K)
12
Rover—Dog Sitters & Walkers
Rover—Dog Sitters & Walkers
Rover—Dog Sitters & Walkers
Book local 5-star pet care
Free

Looking for reliable dog sitters in your area? Find trusted sitters to care for your furry friend while you're away. Browse profiles, read reviews, and book with confidence.

✈️ Travel
(516K)
13
FlixBus & FlixTrain
FlixBus & FlixTrain
FlixBus & FlixTrain
Book bus and train tickets
Free

A travel app that offers an extensive range of bus routes across various European destinations, with real-time schedules, bookings, and tracking services. Discover hassle-free travel at your fingertips.

✈️ Travel
(85K)
14
Invoice Maker・Estimate App
Invoice Maker・Estimate App
Invoice Maker・Estimate App
Create Professional Invoices
Free

Create professional invoices with ease using our app! Perfect for small business owners and freelancers, Invoice Maker simplifies invoice creation, management, and tracking on your iPhone or iPad. Download for free now and take control of your accounting needs effortlessly.

💰 Finance
(2.2K)
15
Choice Hotels : Book Hotels
Choice Hotels : Book Hotels
Choice Hotels : Book Hotels
Book over 7k hotels worldwide
Free

Find and book hotels easily with the Choice Hotels Mobile App. Search, manage stays, redeem points, and enjoy the lowest price guarantee for over 7,000 hotels worldwide. Simplify your travel experience with convenient booking, location-based search, and access to real user reviews.

✈️ Travel
(101K)
16
LinkedIn: Community & Network
LinkedIn: Community & Network
LinkedIn: Community & Network
Find Jobs, Insights and News
Free

Connect with professionals, expand your professional network, and showcase your skills and experience through profiles and posts. Join groups, engage in discussions, and stay updated on industry news. Maximize your career opportunities and connections today.

💼 Business
(639K)
17
Cleartrip Flights, Hotels, Bus
Cleartrip Flights, Hotels, Bus
Cleartrip Flights, Hotels, Bus
Book Flights, Hotels & Buses
Free

Easily book flights, hotels, and buses with a single application. Simplify your travel planning process and save time by accessing multiple travel services in one place. Start planning your next trip today!

✈️ Travel
(3.7K)
18
RedShelf
RedShelf
RedShelf
by RedShelf
Free

Access your textbooks online or offline with the eReader companion app, offering features such as text highlighting, note-taking, flashcard creation, and text-to-speech. Enhance your studying experience by syncing notes and highlights across all your devices. Requires an active RedShelf account with at least one book in your library.

📚 Education
(7.1K)
19
Grok - AI Chat & Video
Grok - AI Chat & Video
Grok - AI Chat & Video
The real-time AI assistant
Free
📊 Productivity
(1.2M)
20
Badoo Dating: Meet New People
Badoo Dating: Meet New People
Badoo Dating: Meet New People
Chat and date or make friends.
Free

"Connect with new friends and potential dates online through an intuitive platform that combines dating and chat features."

🌟 Lifestyle
(145K)