Best Biology Dictionary Apps

249+ iOS apps curated and reviewed

3.1 avg rating
17 free apps
Updated July 2026

Finding the right biology dictionary apps can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Biology Dictionary Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Biology EncyclopediaBiology EncyclopediaFreeNoNoMay 2026
2Biology Dictionary OfflineBiology Dictionary OfflineFree2.5★ (4)NoNoMay 2026
3Biology Dictionary & CourseBiology Dictionary & CourseFreeYesNoMay 2026
4Medical Dictionary by FarlexMedical Dictionary by FarlexFree4.8★ (6.9K)YesYesAug 2026
5Biology Dictionary ProBiology Dictionary ProFreeNoNoMay 2026
6Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (324K)YesYesAug 2026
7Biology Quiz (new)Biology Quiz (new)Free4.5★ (16)NoYesJul 2026
8Biology Dictionary - Terms DefinitionsBiology Dictionary - Terms DefinitionsFree1.0★ (1)NoNoMay 2026

Top Picks for Biology Dictionary

Biology Dictionary Offline#2

Biology Dictionary Offline by Andrew Putranto

Strong Contender
📚 Education
2.5(4 ratings)
Free
Biology Dictionary Offline screenshot 1
Biology Dictionary Offline screenshot 2
Biology Dictionary Offline screenshot 3

Access a comprehensive offline biology dictionary with numerous terms. This free application works without an internet connection, making it ideal for study on the go. It features an alphabetical listing and a search tool for easy navigation.

More Biology Dictionary apps to explore

4
Medical Dictionary by Farlex
Medical Dictionary by Farlex
Medical Dictionary by Farlex
Healthcare Terminology
Free

Access over 180,000 medical terms with clear definitions, audio pronunciations, and images from authoritative sources. This free app is ideal for healthcare professionals, students, and anyone curious about medical terminology, offering offline access to a vast glossary.

180,000+ medical terms and definitionsOffline access to 40,000+ entriesThousands of medical abbreviations
🏥 Medical
(6.9K)
free with in-app purchases
5
Biology Dictionary Pro
Biology Dictionary Pro
Biology Dictionary Pro
Biology Dictionary Offline
Free
📚 Education
(0)
6
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
7
Biology Quiz (new)
Biology Quiz (new)
Biology Quiz (new)
by Hoa Nguyen Quang
Free

Test your biology knowledge with this comprehensive quiz app. It covers plant and animal kingdoms, the human body, and diseases, offering various quiz modes and detailed performance reports. Ideal for students preparing for exams.

65+ quiz setsRandom quiz generationSave questions for review
📚 Education
(16)
free with in-app purchases
8
Biology Dictionary - Terms Definitions
Biology Dictionary - Terms Definitions
Biology Dictionary - Terms Definitions
by Santosh Mishra
Free

Instantly decode biology terms with this offline dictionary. Features a vast encyclopedia, search functionality, bookmarking, and audio pronunciation. Perfect for students and professionals needing quick access to biological definitions.

Extensive biology term encyclopediaSearch functionalityBookmark terms and meanings
📚 Education
(1)
free
9
Biology Notes and Dictionary
Biology Notes and Dictionary
Biology Notes and Dictionary
Biology Notes MCQs Dictionary
Free
📚 Education
(0)
10
Marine Biology — dictionary
Marine Biology — dictionary
Marine Biology — dictionary
by AppCrab
Free

This app serves as a comprehensive personal study guide for marine biology. It offers a dictionary of terms with definitions, flashcards, visual explanations, and a powerful search function. Additionally, it includes 146 video lessons and a detailed textbook covering major topics.

Marine biology dictionaryFlashcards for termsVisual explanations
📚 Education
(9)
free with in-app purchases
11
Biotechnology Dictionary Pro
Biotechnology Dictionary Pro
Biotechnology Dictionary Pro
Biotechnology Dictionary Pro
Free
📚 Education
(0)
12
Biology Terms Dictionary Pro
Biology Terms Dictionary Pro
Biology Terms Dictionary Pro
by Raj Kumar
$1.99

This app provides a comprehensive offline dictionary of over 50,000 biological terms with clear definitions. It's designed for students and practitioners to easily search, bookmark, and share biological vocabulary.

Over 50,000 biological termsOffline accessAlphabetical search
🔍 Reference
(1)
paid
13
Engineering Dictionary
Engineering Dictionary
Engineering Dictionary
Electrical & Electronics
Free
📚 Education
(0)
14
Biology Exam Prep Tests
Biology Exam Prep Tests
Biology Exam Prep Tests
College Bio Practice Questions
Free
📚 Education
(0)
15
IB Biology SL and HL Key Terms Games
IB Biology SL and HL Key Terms Games
IB Biology SL and HL Key Terms Games
by madebyeducators
$2.99

Reinforce your understanding of IB Biology key terms with engaging games. Features include a key-terminator, matching games, and personalized flashcards. Developed by educators and tested in schools, this app focuses on strengthening vocabulary for IB Biology students.

Key-terminator gameMatching gamesPersonalized flashcards
📚 Education
(1)
paid
16
Bio Lexicon
Bio Lexicon
Bio Lexicon
Biology Dictionary & Quiz
Free
📚 Education
(0)
17
Biology: roots, terms
Biology: roots, terms
Biology: roots, terms
prefixes and suffixes
$0.99

Learn the building blocks of biological terms. This app offers a comprehensive list of roots, prefixes, and suffixes from Greek and Latin, with examples and quizzes to help you understand and remember scientific vocabulary.

Roots, prefixes, and suffixes listExamples of term formationGeneral combination rules
🔍 Reference
(1)
paid
18
BioLearn – Biology Exam
BioLearn – Biology Exam
BioLearn – Biology Exam
Learn Biology smart & fast
Free
📚 Education
(0)
19
Biotechnology Dictionary Offline
Biotechnology Dictionary Offline
Biotechnology Dictionary Offline
by Andrew Putranto
Free

Access a comprehensive offline dictionary of biotechnology terms and words. This free application features an alphabetical listing, a search tool, and a learning aid, making it ideal for study and reference without an internet connection.

Offline accessThousands of termsCompletely free
📚 Education
(1)
free
20
Disease Dictionary - Disease List
Disease Dictionary - Disease List
Disease Dictionary - Disease List
by Santosh Mishra
Free

Access a comprehensive encyclopedia of disease terms with easy search and bookmarking features. Get accurate definitions and listen to correct pronunciations. Share information and expand your medical knowledge offline.

Vast disease term encyclopediaSearch functionalityBookmark terms
💪 Health & Fitness
(0)
free

FAQ about Biology Dictionary

Are there free biology dictionary apps for iPhone?
Yes — 17 of the top biology dictionary apps we rank are free to download, including Biology Encyclopedia and Biology Dictionary Offline.
Biology Encyclopedia has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 249+ biology dictionary apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.

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