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Best Free Encyclopedia Apps

247+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated October 2026

Whether you're new to free encyclopedia or looking for an upgrade, our curated collection of 247+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Free Encyclopedia Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1WikipediaWikipediaFree4.3β˜… (6.3K)NoNoOct 2026
2WikipanionWikipanionFree3.8β˜… (169)NoNoOct 2026
3Encyclopedia by FarlexEncyclopedia by FarlexFree4.6β˜… (401)YesYesSep 2026
4Encyclopedia : 25,000+ topicEncyclopedia : 25,000+ topicFree4.0β˜… (66)YesNoOct 2026
5Kids Encyclopedia with AIKids Encyclopedia with AIFreeβ€”NoYesSep 2026
6The Animal EncyclopediaThe Animal EncyclopediaFree4.9β˜… (14)NoYesOct 2026
7World History EncyclopediaWorld History EncyclopediaFree4.9β˜… (30)YesNoOct 2026
8Encyclopedia of CatsEncyclopedia of CatsFree4.7β˜… (3)NoYesOct 2026

Top Picks for Free Encyclopedia

Wikipedia#1

Wikipedia by Wikimedia Foundation

The Free Encyclopedia
Editor's Choice
πŸ” Reference
4.3😐(6.3K ratings)
Free
#34in Reference
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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

  • πŸš€ Vast information repository
  • πŸ‘ Customizable reading experience
  • πŸš€ Convenient offline access
  • πŸ‘ Reliable and trustworthy content
  • πŸ‘ Excellent app design and UI

Room to Improve

  • πŸ› Occasional crashes and freezes
  • πŸ”‹ High data usage and battery drain
  • πŸ”’ Concerns about political bias and censorship
  • πŸ”’ Unreliable editing process and information accuracy
Wikipanion#2

Wikipanion by Robert Chin

Strong Contender
πŸ” Reference
3.8😊(169 ratings)
Free
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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

  • πŸš€ Fast and responsive
  • πŸ‘ Simple and intuitive UI
  • πŸ“š Excellent Wikipedia integration
  • πŸ” Helpful search and navigation features

Room to Improve

  • πŸ› Occasional crashes and performance issues
  • πŸ•°οΈ Slow loading times for some users
  • πŸ’‘ Lack of dark mode or customization options
  • πŸ” Search function not always reliable
Encyclopedia by Farlex#3

Encyclopedia by Farlex by Farlex, Inc.

Science, World History, & More
Worth Considering
πŸ” Reference
4.6😊(401 ratings)
FreeAdsIn-App Purchases
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Access over 330,000 articles, 77,000 audio pronunciations, and 24,000 images from trusted sources. This app provides in-depth information on a vast range of topics, perfect for students, professionals, or the curious.

What We Love

  • πŸ‘ Easy to use and navigate
  • πŸ“š Comprehensive knowledge base
  • πŸš€ Fast and efficient search
  • πŸ’° Free or affordable access
  • πŸ“– Succinct articles for quick learning
  • πŸŽ“ Useful for students and research
  • πŸ“± Handy mobile reference
  • βœ… Well-organized and categorized information
  • πŸ” Reliable source with references

Room to Improve

  • πŸ› Internet connectivity issues
  • πŸ“€ Opens search results in browser instead of app
  • πŸ“Ί Too many advertisements
  • β™Ώ Poor accessibility for vision-impaired users
  • πŸ“š Limited article coverage for some terms
  • ⏱️ Outdated sources (Soviet Encyclopedia 1979)
  • πŸ”€ Short/minimal text entries

More Free Encyclopedia apps to explore

FAQ about Free Encyclopedia

What are the best free encyclopedia apps for iPhone?
Wikipedia tops our free encyclopedia apps ranking as of October 2026, with a 4.3-star average from 6.3K App Store ratings, and it's free to download.
Wikipedia has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 247+ free encyclopedia apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.