Best Biology Dictionary Pro Apps

176+ iOS apps curated and reviewed

3.9 avg rating
15 free apps
Updated July 2026

Whether you're new to biology dictionary pro or looking for an upgrade, our curated collection of 176+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Biology Dictionary Pro Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Biology Dictionary ProBiology Dictionary ProFreeNoNoMay 2026
2Dictionary.com: English WordsDictionary.com: English WordsFree4.8★ (328K)YesNoJul 2026
3Biology Dictionary & CourseBiology Dictionary & CourseFreeYesNoMay 2026
4Merriam-Webster DictionaryMerriam-Webster DictionaryFree4.8★ (320K)YesYesJul 2026
5Merriam-Webster Dictionary+Merriam-Webster Dictionary+$9.994.8★ (22K)YesNoJul 2026
6Biology EncyclopediaBiology EncyclopediaFreeNoNoMay 2026
7Advanced English Dictionary.Advanced English Dictionary.$2.994.7★ (238)NoNoJul 2026
8Marine Biology — dictionaryMarine Biology — dictionaryFree4.1★ (9)NoYesMay 2026

Top Picks for Biology Dictionary Pro

Dictionary.com: English Words#2

Dictionary.com: English Words by Curiosity Media

Dictionary, Thesaurus, Vocab
Strong Contender
🔍 Reference
4.8😐(328K ratings)
FreeAdsIn-App Purchases
Dictionary.com: English Words screenshot 1
Dictionary.com: English Words screenshot 2
Dictionary.com: English Words screenshot 3
Dictionary.com: English Words screenshot 4
Dictionary.com: English Words screenshot 5

Access over 2 million trusted definitions and synonyms for English words. Enhance your vocabulary with daily new words, example sentences, and audio pronunciations. This app provides grammar tips and editorial content to deepen your understanding of the English language.

What We Love

  • 🚀 Robust dictionary and thesaurus
  • 🤓 Helpful resources like blogs and articles
  • 💡 Useful word games and puzzles
  • 👍 Easy to use and navigate

Room to Improve

  • 🐛 Inconsistent search results and missing definitions
  • 💸 Aggressive ads even after paid upgrades
  • 🤯 Frequent crashes and performance issues

More Biology Dictionary Pro apps to explore

4
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
(320K)
free with in-app purchases
5
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Merriam-Webster Dictionary+
Premium Ad-free Dictionary
$9.99

Access America's leading dictionary with over 15,000 extra entries for people and places. Enjoy offline access, voice search, and daily vocabulary builders. This app offers expert word guidance with a thesaurus and example sentences.

Ad-free experience15,000+ premium entriesOffline dictionary access
🔍 Reference
(22K)
freemium
6
Biology Encyclopedia
Biology Encyclopedia
Biology Encyclopedia
by Harikrishna Patel
Free
📚 Education
(0)
7
Advanced English Dictionary.
Advanced English Dictionary.
Advanced English Dictionary.
English Dictionary & Thesaurus
$2.99

This comprehensive English dictionary and thesaurus offers offline access to millions of words, definitions, pronunciations, and etymologies. Explore word connections, sample sentences, and discover new vocabulary with advanced search and unique features.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(238)
paid
8
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
9
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
10
Dictionary.
Dictionary.
Dictionary.
by TheFreeDictionary.com
Free

Access a comprehensive dictionary, thesaurus, and translation tool with millions of definitions and synonyms. Explore specialty dictionaries, learn new words daily, and play word games. This app offers offline access and integrates seamlessly with other applications.

Offline dictionary and thesaurusMillions of definitions and synonymsWord of the Day and Idiom of the Day
🔍 Reference
(14K)
free with in-app purchases
11
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
English dictionary with Audio
Free

This comprehensive English dictionary and thesaurus offers precise definitions, synonyms, antonyms, and related words. It features intelligent search tools, offline audio, and customizable themes to enhance your language learning experience.

140,000+ definitionsSynonyms, antonyms, and related wordsOffline audio pronunciation
🔍 Reference
(4.3K)
free with in-app purchases
12
FreeSaurus - The Free Thesaurus!
FreeSaurus - The Free Thesaurus!
FreeSaurus - The Free Thesaurus!
by Weeswares Pte Ltd
Free

This is a straightforward thesaurus app that provides synonyms and antonyms for words. It focuses on simplicity and ease of use, offering related words alongside definitions. An internet connection is required for it to function.

Synonyms and antonymsRelated wordsSimple interface
🔍 Reference
(120)
free
13
Biology Dictionary Offline
Biology Dictionary Offline
Biology Dictionary Offline
by Andrew Putranto
Free

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.

Offline functionalityExtensive biology termsCompletely free
📚 Education
(4)
free
14
Dictionary
Dictionary
Dictionary
in Widget
Free

Instantly look up words from your iOS Home Screen without opening the app. Get definitions in seconds to aid studying, reading, or satisfying curiosity, keeping you focused and learning.

Home Screen widget for instant lookupsNo app launch requiredQuick definitions
🔍 Reference
(4)
ad-supported
15
Biology Notes and Dictionary
Biology Notes and Dictionary
Biology Notes and Dictionary
Biology Notes MCQs Dictionary
Free
📚 Education
(0)
16
Biology Answers - AP Biology
Biology Answers - AP Biology
Biology Answers - AP Biology
Learn Biology anywhere
Free

This app provides comprehensive learning materials, quizzes, and a glossary for biology students. It offers detailed diagrams and tracks quiz results to help users revise for tests and exams. The content is graded over three levels, making it suitable for secondary and university-level studies.

Comprehensive learning materialThousands of quiz questionsTrack quiz results
📚 Education
(178)
subscription
17
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
18
Advanced English Dictionary HD
Advanced English Dictionary HD
Advanced English Dictionary HD
English Dictionary & Thesaurus
$3.99

Access a vast English dictionary and thesaurus with millions of words, definitions, and pronunciations. Explore word origins, sample sentences, and discover connections with a unique conceptual thesaurus. Enjoy offline access and an ad-free experience.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
🔍 Reference
(59)
paid
19
Dictionary - English
Dictionary - English
Dictionary - English
English Dictionary Offline
Free

This offline English dictionary and thesaurus provides definitions, synonyms, antonyms, and example sentences for over 147,000 words. It offers intelligent word suggestions, spelling corrections, and integrates with Wikipedia for deeper learning. Save favorite words and track your search history.

Offline dictionary and thesaurus147,000+ wordsSynonyms and antonyms
🔍 Reference
(108)
free with in-app purchases
20
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
(2.5K)
paid

FAQ about Biology Dictionary Pro

Are there free biology dictionary pro apps for iPhone?
Yes — 15 of the top biology dictionary pro apps we rank are free to download, including Biology Dictionary Pro and Dictionary.com: English Words.
Biology Dictionary Pro has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 176+ biology dictionary pro apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.