The interactive Grammar of English (iGE) is a comprehensive introductory course in English grammar which takes you from the most basic elements to the most complex constructions.

iGE is an authoritative guide to the structure of the English Language specifically designed for mobile devices to meet the needs of busy teachers and students.


iGE uses lots of examples of real language taken from the 1M word ICE-GB Corpus, compiled and analysed at UCL and used by linguistics researchers across the world.

Our examples of spoken and written English demonstrate that grammatical concepts apply to all uses of the English language, not just so-called 'Good' or 'Correct' English.


iGE is written by a team of linguists at University College London (UCL), independently ranked as one of the world's best Universities. The grammar you'll be learning is based on recent research and best practice in the field. Our grammatical analysis has been proven on over a million words of written and spoken English.

The iGE course covers the same ground as a first year undergraduate course in Modern English Grammar. But that does not mean it is difficult to follow! We have written iGE to be accessible, with clear explanations, colourful notation and lots of examples.


iGE is for everyone with an interest in the grammar of English.

The course is is suitable for

• anyone wishing to learn English or improve their English
• students studying English language at secondary or high school
• those studying English as a second or foreign language
• teachers of the English language
• undergraduate students of linguistics
• students of English literature
• journalists, civil servants and anyone interested in clear, plain English


iGE contains:

• A comprehensive course in grammar including:
- word classes (nouns, determiners, verbs, etc.),
- phrases, clauses and sentences,
- grammatical functions (Subjects, Objects, etc.),
- and many more topics along the way.

Creating iGE was an exercise in miniaturisation. We cover the same range of topics found in a heavy grammar book, typically costing five times the price or more, and squeeze it into your device. We have simplified the presentation to make it easier to read, and exploited the capabilities of the device.

• A complete grammatical glossary: a searchable A-Z of grammatical terms (see picture below).

The interactive Grammar of English is extensively cross-referenced via the glossary. Grammatical terms are highlighted throughout the course with a dashed green underline (see below). Tap on one and you get the definition of the term, links to other related definitions, and a list of pages in the course explaining the term in more depth.

• Many interactive exercises and quizzes to test yourself.

Our exercises use hundreds of real English examples. You can try an exercise again to get new examples. Exercises can be timed, and for a real challenge, played against the clock.


Download the free iGE 'Lite' from the App Store.

For more information see

What’s New

Version 1.2.1

This app has been updated by Apple to use the latest Apple signing certificate.

Some minor bug corrections and a more responsive interface.

Ratings and Reviews

3.5 out of 5
6 Ratings

6 Ratings

Fumble Finger ,

So close...

I think a lot of work has gone into this app but the exercises are lousy - really lousy. The examples in the exercises are often much more complicated than the previous discussion and this makes them pretty discouraging for students trying to get a grasp on grammar. I wish UCL would just fix the examples in the exercises so that I could recommend this app to my students.

arcanescience ,

Update to iOS 11

Please update the app to work with iOS 11. I currently cannot use the app because it hasn't been updated.

MentalStudent ,


Finally, a team of modern linguists have created the closest thing to a grammar possible, current with the state of research. Full of useful descriptions and models.

App Privacy

The developer, UCL Business PLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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