PromptLingo is an overall app developed by Frank Otto.
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App Information
PromptLingo is FREE to download. The APK download size is 8.29 MB. The latest version available is 2.1. The last update was on January 21, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play January 2026.
Description
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
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.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.