The Grammar Index

Grammar Index is a comprehensive English grammar reference for students, teachers, and lifelong learners — 270+
grammar topics, clear plain-English definitions, and up to ten worked examples for every entry. Built to look up
an answer fast, then read deeper when you want to understand the rule.

WHY GRAMMAR INDEX

Most grammar apps either charge a recurring subscription, hide content behind ads, or rely on an internet
connection that's not always there. Grammar Index is a one-time purchase, ad-free, and works entirely offline
once activated — the full grammar database lives on your device.

WHAT'S INSIDE

Over 270 topics organised into six categories:

• Parts of speech — nouns, verbs, adjectives, adverbs, pronouns, articles, conjunctions, prepositions,
interjections, and more.
• Verbal forms — gerunds, infinitives, participles, aspects, conditionals, and the full range of tenses.
• Sentence structure — clauses, phrases, complements, subjects, objects, modifiers, and the building blocks of
complex sentences.
• Syntax rules — agreement, tense consistency, parallel structure, and the common error patterns that trip
writers up.
• Mechanics — capitalisation, abbreviations, contractions, prefixes, suffixes, and the morphology of English
words.
• Punctuation — every mark from the period to the interrobang, with British and American conventions explained
side by side.

WORKED EXAMPLES

Each entry includes up to ten worked examples — including incorrect/correct pairs where the difference matters,
and the occasional funny one to make the rule stick. So you don't just see the rule; you see how it actually
plays out in real sentences.

BUILT FOR LEARNERS

Plain English explanations, no jargon. Clear definitions for ESL and EFL learners — concepts like the
subjunctive mood, the perfect aspect, or the Oxford comma become approachable rather than intimidating. British
and American conventions are distinguished where they differ. Instant search across all 270+ entries, with
category filters to focus on what you need.

KEY FEATURES

• 270+ English grammar topics
• Up to 10 worked examples per topic
• Works fully offline once activated
• Instant search and category filters
• British and American conventions side by side
• Plain-English explanations for ESL and EFL learners
• No ads, no tracking, no analytics
• One-time purchase — no subscriptions
• Free content updates for the lifetime of your licence

FOR SCHOOLS AND COLLEGES

Schools, colleges, and universities can license Grammar Index for entire year groups at affordable per-seat
pricing. One licence key works across all the devices a student uses — phone, tablet, and PC. IT administrators
can deploy via Google Workspace, Microsoft Intune, or any standard Android MDM workflow.

ACTIVATION

Grammar Index requires a licence key purchased from grammarindex.com. Enter it on first launch to activate your
device. Activation is one-time per device against your seat allowance; thereafter the app works entirely
offline.

PRIVACY

Grammar Index does not collect personal data, run analytics, or show ads. The only data sent over the internet
is your licence key and a hashed device fingerprint during the one-time activation. After activation, the app is
fully offline.

Published by Alderstrom Limited, London.