It sounds like you're describing Wordle or a modern twist on Scrabble, but based on your detailed description—featuring letter tiles, board gameplay, Elo rankings, AI opponents, online/offline play, Bluetooth multiplayer, mini-games, and vocabulary-building—it's most likely a feature-rich mobile or tablet version of Scrabble or a Scrabble-like word game such as:

🎯 "Wordfeud" – A popular multiplayer word game inspired by Scrabble with online battles, AI, mini-games, and both solo and multiplayer modes.

Or potentially:

🎮 "Words With Friends" (by Zynga) – Another well-known Scrabble-style game offering:

• Turn-based play (online or via Bluetooth)
• AI opponents (with varying difficulty levels)
• 5+ themed mini-games (e.g., Word Sprint, Anagram Attack, Word Jumble)
• Elo-style ranking system
• Offline and online modes
• Cross-platform play (iOS, Android, web)

Alternatively, it could be a new app like: 🔹 "Word Master: Classic Word Game"
🔹 "Scrabble GO" (official Scrabble app by Mattel)
🔹 "Word Craft: Word Games" – a fresh take combining classic mechanics with modern flair.

✅ What makes it stand out (based on your description):

• ✅ Fully playable offline
• ✅ Online multiplayer and Bluetooth for local play
• ✅ Strong AI opponent with adaptive difficulty
• ✅ Elo ranking system for competitive players
• ✅ 5 unique mini-games (e.g., word puzzles, speed rounds, themed challenges)
• ✅ Great for family game nights, vocabulary growth, and spelling mastery

💡 Pro tip: If you're looking to download this kind of app, search on the App Store or Google Play for:

“Scrabble-style word game with mini-games, Elo ranking, offline mode”

Popular results:

• Words With Friends 2 (Zynga)
• Wordfeud (Playrix)
• Scrabble GO
• Word Master: Puzzle Game

Let me know if you’d like help choosing the best one based on your platform (iOS/Android), multiplayer preferences, or gameplay style (casual vs. competitive). 😊🧩