Friengo.ai

Many language learners drop out after hitting the intermediate plateau. Friengo.ai is a vibe-learning app that lets you naturally continue output practice with an unprecedentedly realistic AI partner.

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Inspiration

When I traveled to Barcelona, a strikingly beautiful woman passed right in front of me, and in that moment, I was suddenly seized by an intense desire to speak Spanish. Up until then, I had no interest in it whatsoever. Language is a communication tool, and without a purpose, you don't feel motivated to acquire the means. Becoming genuinely close with people from other countries in real life might be the best approach, but in reality, many people are shy, and it hardly ever happens. That's why I thought I'd solve this with AI. In other words, I'd create a simulated conversation partner using AI.

What it does

👥 How it works

  1. Choose an AI partner you like.
  2. Chat with them and share your everyday life.

3. Just simple conversation—but that’s the best kind of output.

💡 Why conversation works

  • You express what you actually want to say in that language.
  • People remember things better when emotions are involved.

* That’s why casual chats lead to natural learning.

🛟 Always supported

If you get stuck, the AI assistant helps instantly, so you never feel lost.

🔁 From chats to learning

  • Save your own messages for review.
  • Saved phrases automatically become quizzes.

* Over time, you build a personalized practice set.

🚫 Not a study app

Freingo.ai isn’t a “study” app.

It’s designed to blend output seamlessly into your daily life.

✨ A new style of learning

This is Vibe Learning—

a new way to learn by naturally living in the language.

How we built it

Tech Stack

  • Frontend: React Native
  • Backend: Python (LangGraph)
  • Database: Supabase
  • Cloud Hosting: Railway
  • Workers & Services: Redis, Celery, FastAPI
  • LLM: OpenAI
  • Memory Layer: Mem0.ai
  • Image generation: Higgsfield

Challenges we ran into

  • Everything because I'm lonely and not a engineer.

Accomplishments that we're proud of

AI partners have the following characteristics, offering a sense of reality and change that other AI friend or AI companion services don’t provide:

  • Long-term memory
  • Daily life: They have their own life and experience events every day.
    • Example: 2025/10/1 12:30 – “I had tea with a friend at a café. It was fun.”
  • Image sharing: Along with diary entries, they send realistic images tied to their experiences.
  • Evolving intimacy: The relationship deepens or changes over time.
  • Emotional changes: Their emotions shift in response to situations and interactions.

What we learned

  • Everything because I'm lonely and not a engineer.

What's next for Friengo.ai

  • Making AI partners more realistic and engaging
  • Focusing on social media marketing, especially on TikTok

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