Offline spell checker, voice pronunciation studio, smart dictionary & thesaurus.
Elevate your English writing, spelling precision, and speech clarity with SpellMaster Pro—the privacy-focused offline spell checker, pronunciation studio, and vocabulary companion crafted with modern Material 3 Expressive design.
Designed for students, professionals, writers, and language learners, SpellMaster Pro combines an ultra-fast offline lexicon with powerful phonetic tools for daily English mastery.
🌟 KEY FEATURES
📴 1. True Offline Spell Checking (180,000+ Words)
• Powered by a comprehensive embedded lexicon with over 180,000 verified English words.
• Works 100% offline without cellular data or Wi-Fi. Ideal for travel, classrooms, and commute.
• Intelligent typo detection based on Levenshtein distance and frequency ranking.
• Check words, sentences, or full paragraphs with one-tap correction suggestions.
🗣️ 2. Phonetic Pronunciation Studio
• Listen to accurate speech pronunciations across 5 major English accents: United States, United Kingdom, Canada, Australia, and India.
• Fine-tune speech pitch and playback rate (0.5x slow-motion study up to 2.0x natural speed).
• Pre-loaded with tricky English phonetic words (Worcestershire, Anemone, Mischievous, Colonel, Queue, Quinoa, and more).
• Clear syllable breakdowns and audio replay.
📖 3. Smart English Dictionary & Thesaurus
• Search word definitions instantly categorized by parts of speech (noun, verb, adjective, adverb).
• Rich contextual example sentences showing proper usage in modern English.
• Interactive synonym and antonym chips to rapidly expand your vocabulary.
• Audio pronunciation button for every dictionary entry.
🌍 4. Speak & Translate (16+ Global Languages)
• Voice dictation with real-time speech-to-text recognition.
• Instant translation across 16+ languages including Spanish, French, German, Hindi, Arabic, Japanese, Korean, and Portuguese.
• Audio speech playback in target languages with one-tap clipboard copy and share.
✨ 5. AI Style & Tone Enhancer
• Polish sentences with selectable writing tones: Professional, Casual, Academic, Concise, and Creative.
• Correct grammatical flow, capitalization, and sentence structures.
• Side-by-side comparison cards highlight stylistic improvements and refinements.
🎨 6. Material 3 Expressive UI
• Designed with modern Android Material 3 Expressive standards: 28dp squircle cards, full-pill action buttons, and fluid spring physics.
• Energetic amber accents paired with deep sovereign navy typography for comfortable reading.
• Fully responsive layout optimized for all modern phones, foldables, and tablets.
🛡️ PRIVACY-FIRST & TRANSPARENT
• No Account Required: Start using the app immediately with zero sign-up friction.
• Privacy-Focused: Your keystrokes and dictionary queries are never recorded, tracked, or uploaded.
• Zero Dangerous Permissions: No access to camera, contacts, microphone, or device files.
• Lightweight & Battery Friendly: Fast, local SQLite queries that preserve battery life.
📬 DEVELOPER & SUPPORT
• Developer: Devang Bhumbhaliya Babubhai
• Support Email:
[email protected]
• Privacy Policy: https://devang7072.github.io/spellmaster-pro/
• Developer Website: https://devang7072.github.io/
Welcome to SpellMaster Pro v1.0.0!
• 100% Offline Spell Checker (180k+ words)
• Phonetic Pronunciation Studio (5 accents)
• Smart Dictionary & Thesaurus
• Speak & Translate in 16+ languages
• AI Writing & Tone Enhancer
• Modern Material 3 Expressive UI