Biology Reference Apps: A Dictionary and a Hormones Guide for GCSE & Beyond
Not every biology problem is a revision-quiz problem — sometimes you just need a fast, reliable biology dictionary app to look up what a term actually means before a quiz question makes any sense at all. Terminology is one of the biggest barriers in GCSE Biology and beyond, and a reference app that's built to be searched rather than worked through front to back solves a different problem than a quiz.
The two reference apps below cover general biology vocabulary and the hormone system specifically, with a game-based quiz app alongside them for when you're ready to test yourself rather than just look something up.
A Biology Dictionary App for Quick Lookups
Stopping mid-revision to search the internet for a definition breaks concentration and often turns up answers pitched at the wrong level.
Bio Lexicon is a biology dictionary and quiz app for iPhone and iPad, built to be searched for a fast definition as much as worked through as a quiz. Having both in one place means a term you look up mid-revision can immediately be turned into a practice question, instead of the two staying separate.
The Hormone System Gets Its Own Reference Guide
Endocrinology is one of the more confusing corners of GCSE and A-level biology, with overlapping glands, hormones and feedback loops that are easy to mix up without a dedicated reference.
Bio Hormones is a reference learning app covering the hormone system specifically, combining explanations with quiz and flashcard modes rather than treating hormones as one small section of a general biology app. Focusing on a single system in depth suits students who find hormones consistently confusing and want more than the passing coverage most syllabuses give it.
Testing What You've Looked Up
Once the vocabulary and the hormone system make sense, a game-based quiz app is a change of pace from straight dictionary lookups.
GCSE Biology Game covers the AQA specification's 7 topics and 29 lessons through flashcards, mnemonics and memory match games rather than a dictionary-style reference. It's a natural next step after using the two reference apps above — from looking a term up, to matching it in a memory game, to recognising it instantly in an exam question.
Full disclosure: I build these apps. Reference apps and quiz apps solve different problems, and biology tends to need both — one for when you don't know a term yet, one for when you're checking that you do.
Frequently asked questions
Is there a biology dictionary app that also has quizzes?
Yes — Bio Lexicon combines a searchable biology dictionary with quiz mode in one iPhone and iPad app, so a definition you look up can be turned straight into practice questions.
Is there an app specifically about biology hormones for GCSE?
Yes — Bio Hormones is a reference app dedicated to the hormone system, with explanations plus quiz and flashcard modes, rather than covering hormones as a small part of a wider biology app.