PromptLingo
Frank Otto Education iPhoneiPadiPod touch
PromptLingo is a free Education app for iPhone and iPad by Frank Otto. Requires iOS 17.6. Updated January 21, 2026.
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- Jan 21
- 2026 · v2.1
Screenshots
About PromptLingo
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.
What’s new
Version 2.1 · Updated January 21, 2026
- AI Mnemonics now with 3 free trials
App privacy
The developer, Frank Otto, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to PromptLingo
Looking for apps like PromptLingo? Here are 6 similar apps on the App Store. The highest rated is Gradigo (5.0/5), and all 6 are free to download.
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PromptFluent - - Learn AI
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Gradigo
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Nomino: AI Language Tutor
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LingoQuest: AI Language Tutor
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Nativia: English Conversation
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Flashcard Dictionary
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| PromptLingo | – | Free | January 21, 2026 | |
| PromptFluent - - Learn AI | – | Free | Sep 19, 2026 | Compare |
| Gradigo | 5.0 / 5 (2) | Free | Oct 6, 2026 | Compare |
| Nomino: AI Language Tutor | – | Free | Sep 6, 2026 | Compare |
| LingoQuest: AI Language Tutor | – | Free | Sep 23, 2025 | Compare |
| Nativia: English Conversation | – | Free | Aug 13, 2026 | Compare |
| Flashcard Dictionary | 4.4 / 5 (5) | Free | Jan 13, 2025 | Compare |
Compare PromptLingo with the top alternatives: ratings, updates, ASO score and keyword gaps →