Two-week buildJuly 2026 · 6 min read

How to Build a Language Learning App with AI

Don't build Duolingo. Build the piece Duolingo does badly for a specific audience: AI conversation practice for one exam (IELTS speaking), medical Spanish for nurses, restaurant Japanese for travelers. LLM APIs made the conversation feature — the hard part — a prompt-engineering task.

What a language learning app needs

  • Vocab decks with spaced repetition
  • AI conversation practice (LLM-powered)
  • Niche lesson tracks
  • Pronunciation playback
  • Progress and streaks

The screens

ScreenWhat it does
HomeDaily lesson + due vocab + streak
Vocab ReviewSpaced-repetition card flow
ConversationChat with AI partner in target language, corrections shown
LessonsTrack of niche-specific units
ProfileStats, level, subscription

The data model

  • VocabCard: term, translation, easeFactor, nextReview
  • Conversation: messages[], corrections[]
  • Lesson: unit, content, completed

The build prompt (copy this)

Paste this into ShipNative and it becomes a working React Native app with these screens, navigable in a live preview, in about two minutes:

A medical Spanish app for nurses. Vocab decks with spaced repetition (clinical terms), AI conversation practice simulating patient interactions with corrections, lesson track by scenario (admission, medication, discharge). Screens: Home, Vocab Review, Conversation chat, Lessons, Profile. Subscription unlocks conversations.

Then iterate with small, screen-specific prompts (“make the primary button bigger”, “add an empty state”), preview on your own phone, and export the full Expo project whenever you want. The full method: how to build an app with AI.

How it makes money

Subscription ($8–15/mo) gated on AI conversations — your API cost lives there, so the paywall aligns with cost.

Implementation and the revenue math for every model: how to make money from an app. When you’re ready to ship: App Store and Google Play publishing guides.

Build it now

The prompt above is free to run at shipnative.dev — working language learning app on your phone today, full code export, no credit card.

Frequently Asked Questions

How does the AI conversation feature work?

An LLM API call with a system prompt ("you are a patient in a Spanish-speaking clinic; correct the nurse's Spanish gently"). In a generated app this is one integration — the UX around corrections is where you iterate.

Can I compete with Duolingo?

Not at their game. At "medical Spanish for nurses" they are unranked and you can be #1 — niche keyword, niche content, professional willingness to pay.

How to Build a Habit Tracker App

Build a habit tracker app in an afternoon with AI — screens, streak logic, reminders, and …

See build plan →

How to Build a Workout Tracker App

Build a workout tracker app with AI — exercise logging, routines, progress charts, and res…

See build plan →

Ship a real React Native app today

Describe, preview, and export Expo code — free to start.

Build with ShipNative →