Best Offline Encyclopedia App

127+ iOS apps curated and reviewed

4.1 avg rating
14 free apps
Updated June 2026

The best offline encyclopedia app on iPhone average 4.1★ across 127+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Compare top Offline Encyclopedia App (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1WikipediaWikipediaFree4.3★ (6.2K)NoNoAug 2026
2Omnipedia—Offline EncyclopediaOmnipedia—Offline EncyclopediaFreeNoYesAug 2026
3WikipanionWikipanionFree3.8★ (169)NoNoAug 2026
4Offline Reader !Offline Reader !Free1.4★ (23)NoNoAug 2026
5KiwixKiwixFree4.2★ (418)NoNoAug 2026
6LexicEN Lite EnglishLexicEN Lite EnglishFree4.6★ (1.1K)NoNoAug 2026
7Offline PagesOffline Pages$4.993.5★ (19)NoYesAug 2026
8Pocket Earth PROPocket Earth PRO$6.994.8★ (1.8K)NoYesAug 2026

Top Picks for Offline Encyclopedia App

Wikipedia#1

Wikipedia by Wikimedia Foundation

The Free Encyclopedia
Editor's Choice
🔍 Reference
4.3😐(6.2K ratings)
Free
#78in Reference
Wikipedia screenshot 1
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Wikipedia screenshot 6

Access the world's largest free knowledge base with over 60 million articles in nearly 300 languages. Explore trending topics, save articles for offline reading, and customize your reading experience with various themes and text sizes. Contribute to the community by editing articles and participating in discussions.

What We Love

  • 🚀 Vast information repository
  • 👍 Customizable reading experience
  • 🚀 Convenient offline access
  • 👍 Reliable and trustworthy content

Room to Improve

  • 🐛 Occasional crashes and freezes
  • 🔋 High data usage and battery drain
  • 🔒 Concerns about political bias and censorship
Omnipedia—Offline Encyclopedia#2

Omnipedia—Offline Encyclopedia by Recursive Ink Ltd

Offline browser for Wikipedia
Strong Contender
🔍 Reference
0.0(0 ratings)
FreeIn-App Purchases
Omnipedia—Offline Encyclopedia screenshot 1
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Omnipedia—Offline Encyclopedia screenshot 6

Access a vast offline encyclopedia, even without internet. This app provides fast, private access to millions of articles, with monthly updates and personalized recommendations. Enjoy a clean interface, customizable appearance, and on-device AI for quick answers.

Wikipanion#3

Wikipanion by Robert Chin

Worth Considering
🔍 Reference
3.8😊(169 ratings)
Free
Wikipanion screenshot 1
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This app provides a streamlined and efficient way to access and navigate Wikipedia content. It offers advanced search capabilities, bookmarking of specific sections, and a history feature grouped by visit date. Enjoy features like a table of contents browser, dual language support, and image saving.

What We Love

  • 🚀 Fast and responsive
  • 👍 Simple and intuitive UI
  • 📚 Excellent Wikipedia integration
  • 🔍 Helpful search and navigation features

Room to Improve

  • 🐛 Occasional crashes and performance issues
  • 🕰️ Slow loading times for some users
  • 💡 Lack of dark mode or customization options

More Offline Encyclopedia App apps to explore

4
Offline Reader !
Offline Reader !
Offline Reader !
by Vijay Anand
Free

Save web pages with formatting and images for offline reading on your iOS device. Access your saved content anywhere, even without an internet connection. Also supports offline playback of music and videos.

Save web pages for offline readingPreserves formatting and imagesBuilt-in browser for saving
📊 Productivity
(23)
free
5
Kiwix
Kiwix
Kiwix
Your offline knowledge gateway
Free

Access a vast library of educational content offline. Download encyclopedias, wikis, and more to browse anytime, anywhere without an internet connection. Save data and access reliable information even in remote areas.

Offline content accessAdvanced compression technologyVast educational content library
🔍 Reference
(418)
free
6
LexicEN Lite English
LexicEN Lite English
LexicEN Lite English
Offline Dictionary & Thesaurus
Free

This offline dictionary and thesaurus provides quick access to over 150,000 words with definitions, pronunciations, and example sentences. Easily look up words, manage favorites, and view search history without an internet connection.

Offline search150,000+ wordsDefinitions, pronunciation, examples
🔍 Reference
(1.1K)
free with in-app purchases
7
Offline Pages
Offline Pages
Offline Pages
by Codium Labs LLC
$4.99

Save web pages with formatting, images, and links to view them offline. Access content without an internet connection, ideal for travel or areas with poor signal. Send links from other devices for easy offline access.

Save web pages with formatting and imagesView saved pages without internetSend links from other devices
✈️ Travel
(19)
free with in-app purchases
8
Pocket Earth PRO
Pocket Earth PRO
Pocket Earth PRO
Offline Maps & Travel Guides
$6.99

Access detailed worldwide maps and travel guides offline, saving on data charges. Features topographic maps, online routing with offline voice guidance, and extensive travel information. Ideal for travelers and outdoor adventurers.

Detailed worldwide offline mapsTopographic contour mapsOffline voice guidance
🗺️ Navigation
(1.8K)
free with in-app purchases
9
Offline Pages Pro
Offline Pages Pro
Offline Pages Pro
by Codium Labs LLC
$9.99

This app allows you to download entire websites for offline browsing, including all formatting, documents, and interactive elements. Save pages from any browser or device, and access them without an internet connection.

Download entire websites for offline accessPreserve full formatting, documents, and interactivitySave pages from Safari or built-in browser
💼 Business
(36)
paid
10
World Map +
World Map +
World Map +
Quick Reference World Maps
Free

Access essential world maps for quick reference and navigation. Explore political, detailed, and time zone maps, with interesting facts about countries. Works online and offline, ideal for students, travelers, and curious minds.

Quick access to essential world mapsPolitical, Detailed, and Time Zones MapsEasy map switching
🔍 Reference
(8K)
ad-supported
11
English Dictionary - Offline
English Dictionary - Offline
English Dictionary - Offline
Offline English Dictionary
Free

A comprehensive offline English dictionary offering in-depth word definitions, usage examples, and rich language data. Explore synonyms, antonyms, pronunciations, and more without an internet connection.

Offline accessDetailed word definitionsUsage examples
🔍 Reference
(7)
free with in-app purchases
12
Encyclopedia : 25,000+ topic
Encyclopedia : 25,000+ topic
Encyclopedia : 25,000+ topic
Animals, Nature & Wildlife
Free

Access a vast digital encyclopedia with over 25,000 topics and articles covering nature, cities, and more. Read content or have it read aloud, and explore over 100 high-definition images per article. Discover popular places in over 1000 cities worldwide.

25,000+ topics and articles10 diverse categoriesRead-aloud functionality
🔍 Reference
(66)
ad-supported
13
City Rail Map - Travel Offline
City Rail Map - Travel Offline
City Rail Map - Travel Offline
Transit for Subway Metro Train
Free

Navigate public transit in major cities worldwide without an internet connection. Find stations, plan routes with distance and travel time, and get walking directions to your destination. Save favorite locations for quick access.

Offline rail mapsGlobal city coverageStation proximity
✈️ Travel
(3.5K)
free with in-app purchases
14
Encyclopedia of Animals
Encyclopedia of Animals
Encyclopedia of Animals
by Good Spider, LLC
Free

Discover a vast collection of animal information with high-definition photos and engaging articles. This educational tool is perfect for children learning about wildlife or anyone interested in expanding their animal knowledge. Enjoy offline access and earn badges for reading.

Extensive animal articles and HD photosAlphabetical organization (A-Z)User-friendly interface
📚 Education
(19)
free with in-app purchases
15
Catholic Encyclopedia Offline
Catholic Encyclopedia Offline
Catholic Encyclopedia Offline
Information in your pocket
$1.99

Access the complete 1914 Catholic Encyclopedia offline on your iPhone or iPad. Explore over 11,500 articles and images with an intuitive interface, powerful search, and easy sharing options. A comprehensive resource for Catholic history, teaching, and information.

Offline accessEnhanced searchShare articles
🔍 Reference
(137)
paid
16
Wikipanion Plus
Wikipanion Plus
Wikipanion Plus
by Robert Chin
$4.99

This app enhances the Wikipedia browsing experience by allowing you to queue articles for later reading. Save entries for offline access or faster loading, with background downloading so you can continue browsing uninterrupted.

Queue mode for future readingSave entries for offline browsingBackground downloading of articles
🔍 Reference
(62)
paid
17
Terminology
Terminology
Terminology
Dictionary•Thesaurus•Research
Free

Explore the English language with this comprehensive tool. It offers dictionary and thesaurus functions, along with research capabilities to dive deeper into words and phrases. Extend its functionality with custom resources for web and app searches.

Offline U.S. English dictionarySynonyms, antonyms, and word relationsCustomizable resources for web and app searches
🔍 Reference
(1.1K)
freemium
18
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
Dictionary and Thesaurus Pro
by TheFreeDictionary.com
$9.99

Access a comprehensive offline dictionary and thesaurus with extensive content in multiple languages. Explore definitions, synonyms, and specialized dictionaries for various fields. Enjoy an ad-free experience with features like word games and instant lookups.

Ad-free experienceOffline English dictionary and thesaurusOffline dictionaries in 13 languages
🔍 Reference
(2.6K)
paid
19
Encyclopedia of Guns
Encyclopedia of Guns
Encyclopedia of Guns
by Good Spider, LLC
Free

Explore a vast collection of articles and HD photos detailing thousands of firearms, from historical to modern. This educational tool is suitable for all ages, offering comprehensive information and an engaging user experience. Read offline and collect badges for your learning progress.

Thousands of articles and HD photosComprehensive gun informationUser-friendly interface
📚 Education
(23)
free with in-app purchases
20
Merriam-Webster Dictionary
Merriam-Webster Dictionary
Merriam-Webster Dictionary
by Merriam-Webster, Inc.
Free

Access America's most respected dictionary, updated with new words and meanings. This app offers offline access, voice search, daily vocabulary challenges, and a thesaurus. It's designed for English language reference, education, and vocabulary enhancement.

Offline dictionary accessVoice search for wordsDaily Word of the Day
🔍 Reference
(324K)
free with in-app purchases

FAQ about Offline Encyclopedia App

What is the best offline encyclopedia app for iPhone?
Wikipedia tops our offline encyclopedia app ranking as of June 2026, with a 4.3-star average from 6.2K App Store ratings, and it's free to download.
Yes — 14 of the top offline encyclopedia app we rank are free to download, including Wikipedia and Omnipedia—Offline Encyclopedia.
Wikipedia has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 127+ offline encyclopedia app on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This is the official application for Wikipedia, the world's largest free knowledge project. It provides access to over 60 million articles in nearly 300 languages, all ad-free and free of charge. You can use it to search for information, read articles, and even contribute to the encyclopedia.
Key features include ad-free access to a vast encyclopedia, search across 300 languages, a personalized feed for trending and breaking news, offline article saving, customizable reading themes and text sizes, map-based discovery of nearby places, and tools for contributing to Wikipedia.