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About Biology Dictionary Offline

Biology Dictionary Offline explains more than 5,700 biology terms, and works without an internet connection. Cells and genetics, anatomy and physiology, ecology, evolution and microbiology: short definitions for school and university students, and for anyone revising for an exam. LOOK UP • 5,700+ entries in alphabetical order • Tap any linked term inside an entry to open it • Search that forgives spelling mistakes, accents and punctuation, and can also search inside the entries • Hear the headword read aloud (American or British voice) • Bookmarks and history LEARN • Flashcards with spaced repetition: what you find hard comes back sooner • Multiple-choice quiz • Ready-made decks to start with, or study your own bookmarks • Word of the day, with an optional morning notification COMFORTABLE • Works offline: everything is on your device • Light and dark mode, three text sizes • iPhone and iPad The app is free and shows ads. A one-time purchase removes them. The definitions are short explanations for study and general information.

What’s new

Version 2.0 · Updated October 12, 2026

A complete rebuild: • Faster to open, and it takes much less space on your device • Search forgives spelling, accents and punctuation, and also looks inside the entries • Tap a term inside an entry to jump to it • Flashcards with spaced repetition and a quiz, with ready-made decks • Word of the day, with an optional morning notification • Read aloud, dark mode, adjustable text size • Fewer full-screen ads, and a one-time purchase to remove ads

App privacy

The developer, Andrew Putranto, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location: Coarse Location
  • Identifiers: Device ID
  • Usage Data: Advertising Data

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Location: Coarse Location
  • Identifiers: Device ID
  • Usage Data: Advertising Data

Used for: Third-Party Advertising

Alternatives to Biology Dictionary Offline

Looking for apps like Biology Dictionary Offline? Here are 6 similar apps on the App Store. The highest rated is Maths Dictionary Offline (5.0/5), and all 6 are free to download.

Biology Dictionary Offline vs. alternatives
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