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Best Openstax Apps

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

The best openstax apps on iPhone average 4.7★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Openstax Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BookshelfBookshelfFree4.7★ (78K)NoNoAug 2026
2Khan AcademyKhan AcademyFree4.6★ (110K)NoNoAug 2026
3Apple BooksApple BooksFree4.4★ (86K)NoNoAug 2026
4American GovernmentAmerican GovernmentFree—NoNoMay 2026
5Elsevier eBooks on VitalSourceElsevier eBooks on VitalSourceFree4.7★ (9K)NoNoAug 2026
6Goodreads: Book Tracker & MoreGoodreads: Book Tracker & MoreFree4.8★ (747K)NoNoAug 2026
7Google Play Books & AudiobooksGoogle Play Books & AudiobooksFree4.4★ (9.6K)NoNoAug 2026
8GymBook ・ Strength TrainingGymBook ・ Strength TrainingFree4.8★ (2.4K)NoYesAug 2026

Top Picks for Openstax

Bookshelf#1

Bookshelf by VitalSource Technologies, Inc.

Editor's Choice
📚 Education
4.7😐(78K ratings)
Free
#38in Education
Bookshelf screenshot 1
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Bookshelf screenshot 6

Access and study your digital textbooks on your iPad or iPhone. This app allows for offline reading, note-taking, flashcard creation, and customizable reading settings. Sync your progress across devices for a seamless study experience.

What We Love

  • 📚 Convenient access to textbooks
  • 🔍 Useful search functionality
  • 📚 Offline reading capability
  • 🔖 Bookmark and note-taking features

Room to Improve

  • 🐛 Buggy highlighting and annotation tools
  • 🖋️ Lack of Apple Pencil support
  • 📚 Restricted functionality compared to other e-book apps
Khan Academy#2

Khan Academy by Khan Academy

You can learn anything
Strong Contender
📚 Education
4.6😊(110K ratings)
Free
#87in Education
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Khan Academy screenshot 6

Access a vast library of free educational content, including interactive exercises, videos, and articles. Master subjects from math and science to humanities and finance at your own pace, with offline access and personalized learning paths.

What We Love

  • 🚀 Impeccable app
  • 👍 Very easy to learn with
  • 👍 Great for learning math
  • 👍 Excellent math program

Room to Improve

  • 🐛 New writing system issues
  • 🐛 Incorrect grammar
  • 🐛 Bugs and glitches
Apple Books#3

Apple Books by Apple

Read, listen, discover.
Worth Considering
📚 Books
4.4😐(86K ratings)
Free
Apple Books screenshot 1
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Discover, read, and listen to millions of books and audiobooks. Browse curated collections, personalized recommendations, and bestsellers. Customize your reading experience with various themes and settings, and set reading goals to build a habit. Share your library with family.

What We Love

  • 🚀 Seamless integration across devices
  • 📚 Vast library of books available
  • 👍 User-friendly interface
  • 🎧 Exceptional audiobook experience

Room to Improve

  • 🐛 Books get deleted from local storage
  • 🐛 Unreliable syncing between devices
  • 🔒 Lack of audio closed captions

More Openstax apps to explore

4
American Government
American Government
American Government
by Minor Orbit, LLC
Free
📚 Education
(0)
5
Elsevier eBooks on VitalSource
Elsevier eBooks on VitalSource
Elsevier eBooks on VitalSource
by Elsevier Inc.
Free

Access and read Elsevier textbooks on your iOS device. Download books for offline study, search your entire library, and add notes and highlights. Sync your progress across devices for a seamless learning experience.

Download books for offline readingSearch entire libraryCreate notes and highlights
📚 Education
(9K)
free
6
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Reviews, lists & reading goals
Free

This app connects you with a vast community of readers to discover new books. Get personalized recommendations, track your reading progress, and see what your friends are enjoying. Scan book barcodes in stores to add them to your wish list and read reviews before you buy.

Personalized book recommendationsReading challenge participationBook cover and barcode scanner
📚 Books
(747K)
free with in-app purchases
7
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Books & Audiobooks
Free

Access millions of ebooks, audiobooks, comics, and manga in one app. Organize your library, enjoy customizable reading and listening experiences, and take your stories anywhere, even offline. Features include smart notes, kid-friendly tools, and voice control for audiobooks.

Millions of ebooks, audiobooks, comics, mangaOffline reading and listeningCustomizable library shelves
📚 Books
(9.6K)
free with in-app purchases
8
GymBook ・ Strength Training
GymBook ・ Strength Training
GymBook ・ Strength Training
Workout Planner・Logger・Tracker
Free

Create, log, and analyze your gym workouts with this comprehensive fitness app. It offers custom exercise creation, detailed logging, and insightful performance analytics with interactive graphs. Track progress, sync data, and time your rests efficiently.

Create custom workouts and exercisesLog sets, weight, and repsTrack workout progress with graphs
💪 Health & Fitness
(2.4K)
free with in-app purchases
9
InfoTaxSquare
InfoTaxSquare
InfoTaxSquare
info tax square app
Free
💰 Finance
(0)
10
VTAC - Remote Tax Filing
VTAC - Remote Tax Filing
VTAC - Remote Tax Filing
by V-Tac Accounting and Tax
Free
💰 Finance
(0)
11
H&R Block Tax Prep: File Taxes
H&R Block Tax Prep: File Taxes
H&R Block Tax Prep: File Taxes
E-file your 2025 Tax Return
Free

Easily prepare and file your federal and state tax returns from any device. Automatically populate up to 80 fields by uploading last year's return. Get expert help, track your refund, and maximize your refund with personalized insights.

Automatic data import from prior year returnsW-2 import via payroll providerDocument upload via photo
💰 Finance
(116K)
free with in-app purchases
12
Tax Plan
Tax Plan
Tax Plan
by COLLABORATIONSTUDIOS.COM, LLC
Free
💼 Business
(0)
13
OpenTable
OpenTable
OpenTable
Find Restaurant Reservations
Free

Discover and book tables at over 60,000 restaurants globally. Find happy hours, special dining experiences, and read verified reviews. Manage your reservations, communicate with restaurants, and earn rewards.

Discover 60,000+ restaurants worldwideSearch happy hours and special dining experiencesRead verified diner reviews
🍔 Food & Drink
(5.6M)
free with in-app purchases
14
Firm Book
Firm Book
Firm Book
Your own Accounting Solution
Free
💰 Finance
(0)
15
SW Tax Portal
SW Tax Portal
SW Tax Portal
By Practice Gateway
Free
💰 Finance
(0)
16
TaxGrit
TaxGrit
TaxGrit
Private tax organizer
Free
💰 Finance
(0)
17
NeuralFi Tax
NeuralFi Tax
NeuralFi Tax
Tax recovery and strategies
Free
💼 Business
(0)
18
KDK Software: GST, TDS & ITR
KDK Software: GST, TDS & ITR
KDK Software: GST, TDS & ITR
All-in-One Tax Compliance
Free
💰 Finance
(0)
19
Stratos Service Plus Centre
Stratos Service Plus Centre
Stratos Service Plus Centre
Stratos Solutions Inc.
Free
💼 Business
(0)
20
HumanityTax
HumanityTax
HumanityTax
by Humanity financial multiservices inc
Free
💰 Finance
(0)

FAQ about Openstax

What are the best openstax apps for iPhone?
Bookshelf tops our openstax apps ranking as of August 2026, with a 4.7-star average from 78K App Store ratings, and it's free to download.
Yes — 20 of the top openstax apps we rank are free to download, including Bookshelf and Khan Academy.
Bookshelf has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ openstax apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
The Bookshelf app provides a digital-first study experience for your VitalSource textbooks on your iPad or iPhone. It allows you to access, read, and study your textbooks anytime, anywhere, with features designed to enhance learning.
Key features include downloading books for offline reading, customizing highlighters and adding notes, creating flashcards with text and images, personalizing reading settings like font and background colors, and using the Read Aloud feature to listen to your books.