# Brainy Wormy Lexicon Builder — Grow Your Lexicon with AI

> Grow Your Lexicon with AI (iPhone/iPad app by OTI Technologies.)

- Source: https://appshunter.io/ios/app/brainy-wormy-lexicon-builder/id6761956728 (this page in markdown: same URL + `.md`)
- Developer: [OTI Technologies](https://appshunter.io/developer/321416742)
- Category: Reference, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 173 MB
- Released: 2026-04-13
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/brainy-wormy-lexicon-builder/id6761956728/reviews.md

## What is Brainy Wormy Lexicon Builder?

Brainy Wormy Lexicon Builder is your ultimate companion to master words effortlessly. Learn, practice, and play with a smart AI-powered vocabulary toolkit designed for learners, students, and word enthusiasts.

No fluff, no ads, freemium with premium gateway to one super app.

Enjoy a special early-bird offer, available for a limited time!

Key Features:

Word Lookup & Details
* Instant definitions with clear explanations
* Etymology and historical origins of words
* Different forms of the word (noun, verb, adjective, etc.)
* Pronunciation with Text-to-Speech (TTS)
* Synonyms, antonyms, and related words

Language Support & Difficulty Levels
* Translate words into 20 languages
* CEFR  (The Common European Framework of Reference for Languages) difficulty levels for all entries
* Sample sentences with TTS to hear proper usage
* Common use cases for everyday and academic scenarios

Voice Trainer & Interactive Games
* Practice pronunciation and improve speaking confidence (requires microphone access permission)

Why Brainy Wormy?
* AI-powered personalized suggestions
* Combines reference and learning in one app
* Ideal for students, professionals, and language enthusiasts
* Works offline for built-in words

Upgrade your vocabulary, boost confidence, and explore the world of words, one word at a time!

Disclaimer:
Some definitions, translations, pronunciations (TTS), or difficulty ratings are AI-generated. While we strive for accuracy, they may occasionally be incorrect or incomplete. Please verify before using for tests, professional work, or other critical purposes. 
Please also note that Voice Trainer uses Apple’s free speech recognition, therefore microphone access is required.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| BrainyWormy Premium | $0.99 | one-time |



## Version history (last 2 releases)

### 1.2 — 2026-04-14

Bug fixes, new app category, new images.

### 1.1 — 2026-04-13

No release notes.

## More apps by OTI Technologies

- [Brainy Wormy AI Vocab Helper](https://appshunter.io/ios/app/brainy-wormy-ai-vocab-helper/id6759031213)
- [Approximationist World Clock](https://appshunter.io/ios/app/approximationist-world-clock/id6762967230)

All apps by OTI Technologies: https://appshunter.io/developer/321416742

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*