Brainy Wormy Lexicon Builder
Grow Your Lexicon with AI
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Master vocabulary with AI: Smart word lookup, Text to Speech (TTS), CEFR, etymology, translations, word games, and personalized voice training, all in one powerful app!
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.
Ratings & Reviews
Bug fixes, new app category, new images.
The developer, Simply Useful Apps, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- OTI Technologies
- Size
- 181 MB
- Category
- Reference
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- BrainyWormy Premium $0.99
- Copyright
- © 2026 OTI Technologies