PromptLingo vs PromptFluent

PromptLingo is not just another language learning app – it's your personal AI-powered Prompt Management System that transforms how you learn languages. BRING YOUR OWN KEY (BYOK) Connect directly to ChatGPT or Claude using your own API key. You pay only for what you use – no expensive subscriptions, no hidden costs, complete transparency. HOW IT WORKS One Tap = Instant Learning Select a prompt template, tap once, and get personalized AI responses tailored to your level. No complicated setup – just immediate value. Chat Mode for Deeper Practice Continue any session as an interactive conversation. Practice dialogues, ask follow-up questions, and get real-time corrections. 17+ EXPERT-CRAFTED TEMPLATES Grammar & Structure - Grammar explanations with examples - Verb conjugation practice - Sentence pattern drills Vocabulary Building - Context-based vocabulary - Word family exploration - Collocation practice Conversation & Culture - Role-play scenarios - Cultural insights - Travel phrases Professional & Academic - Business communication - Academic writing - Email templates PREMIUM FEATURES (One-Time Purchase) AI Mnemonics Generator Create unforgettable memory hooks for any word. Get multiple mnemonic techniques including keyword method, visual stories, etymology connections, personal associations, and memory palace placement. Smart Flashcards - Spaced Repetition with SM-2 algorithm - Auto-import from Mnemonics - Track your progress - Study by language Custom Templates Create your own prompt templates for any learning scenario. Export Your Data Export sessions and mnemonics as PDF, Markdown, or Text. SUPPORTED LANGUAGES Learn any language. Pre-configured for Spanish, French, German, Italian, Portuguese, Japanese, Chinese, Korean, Arabic, Russian, and 20+ more. TRACK YOUR PROGRESS - Learning streaks - Session history - Favorite sessions - Statistics dashboard PRIVACY FIRST - API keys stored securely on your device - No account required - Your data stays yours WHY PROMPTLINGO? Unlike traditional apps with pre-made content, PromptLingo harnesses the full power of AI to create truly personalized learning experiences. Every response is generated specifically for you, your level, your interests, your goals. The BYOK model means: - No monthly subscriptions - Pay only for actual API usage - Transparent costs (typically $0.01-0.05 per session) - Use your existing OpenAI or Anthropic account GET STARTED IN 60 SECONDS 1. Download PromptLingo 2. Add your OpenAI or Claude API key 3. Choose a template and start learning Need an API key? We guide you through the simple setup process. Premium is a one-time purchase – no subscriptions, no recurring fees. Buy once, use forever, including all future premium features. Questions or feedback? We'd love to hear from you.

PromptFluent is the app that teaches you the language of AI. Master prompt engineering, technical vocabulary, and professional communication for ChatGPT, Claude, Copilot, and beyond. Works for English, Spanish, and Portuguese (Brazilian) speakers. THREE NATIVE LANGUAGE MODES Choose your language on first launch: - English speakers: 40 AI-focused lessons on prompt engineering and technical communication - Spanish speakers: 80 bilingual lessons combining English learning with AI terminology - Portuguese speakers: the same 80 lessons; the interface and most reference modules are in Portuguese, while lesson explanations, vocabulary and grammar support text are still shown in Spanish while that translation is completed THREE LEARNING MODES STUDY - Work through structured lessons across 16 units covering four proficiency levels (Starter to Architect). Each lesson includes teaching content, vocabulary, grammar, dialogues with AI, and a quiz. Browse our encyclopedia of 560+ tech terms across 15 categories, study with flashcards, master English grammar with 24 tech-focused lessons, and explore 60 copy-ready prompt templates. Discover 10 AI use cases, a glossary of 20 AI tools, 24 reading comprehension passages, and 16 dev culture notes. PRACTICE - Build real AI skills, grouped the way you use AI. ASK: Prompt Workshop (write prompts and get scored on task, detail and technique), Prompt Lab (see how each part of a prompt changes the answer) and Use AI at Work (24 workplace prompts). REFINE: Refine the Answer (pick the best follow-up when the first answer misses). EVALUATE: Trust Check (judge AI answers with a 4-point checklist) and AI Fact-Check & Safe Use (catch AI mistakes and know what not to paste). REVIEW: Spaced Repetition Review Hub. Spanish and Portuguese speakers also get English for AI: Daily Drills, AI Conversations, Listening Hub, Sentence Scramble, Error Drill, Email & Messages and Verb Hub. PLAY - Prompt Debugger (40 challenges to find what a weak prompt is missing) and Daily Challenges, plus Story Mode, Context Guesser and Translation Shootout for English learners. STRUCTURED LESSONS Progress through a curriculum designed for AI communication: - Starter (Lessons 1-20): First contact with AI, basic tech vocabulary, simple prompt patterns, reading AI output - Practitioner (Lessons 21-40): Coding vocabulary, describing code to AI, technical documentation, intermediate prompt engineering - Builder (Lessons 41-60): Complex prompt structures, working with coding agents, technical English grammar, professional communication - Architect (Lessons 61-80): Advanced prompt engineering, system design communication, AI agent orchestration, mastery Each lesson features five interactive sections: Teach, Vocabulary, Grammar, Dialogue, and Quiz. Score 60% or higher to unlock the next lesson. SMART LEARNING TOOLS - Spaced Repetition System (SRS) using the SM-2 algorithm - 50 English verb conjugation tables for technical verbs - 60 prompt templates organized by task type - 24 reading comprehension passages from real tech docs - Progress dashboard with skill radar, weekly goals, and universal bookmarks - Text-to-speech for all English content - Dark mode support GAMIFICATION - 20-level XP progression system (Newbie to Supreme) - 8 achievement badges to unlock - Daily challenges with XP rewards - Streak tracking for consistent habits Works 100% offline. No account required. All data stays on your device.