Factfulness Quiz App & Generator

Homepage
Quiz question
Sample view after response.
Another question
Factfulness score calculation for each quiz
Community driven quizzes

Inspiration

Inspired by Factfulness book by Hans Rosling. The aim is to generate quizzes and questions on variety of topics where it challenges misconceptions in the mind of a player.
eg: Where does majority of world population live? (A. High income countries. B. Low income countries C. Middle income countries)
Wanted to fight global misconceptions with data-driven questions
Promote a fact-based worldview in an engaging way

What it does

Generates engaging quizzes based on real-world data (e.g., poverty, health, education, selected by any user)
Provides immediate feedback with explanations
Provides citations for each question so that user can read more about the fact and verify
Shows how many users selected which option (similar to poll results).

How we built it

Used Perplexity Sonar APIs (deep research / sonar-reasoning-pro)
Langchain as a wrapper for Perplexity
FastAPI python as backend
Nextjs as frontend

Created a question generator using prompts and data parsing backed by perplexity's APIs. Deep Research API gives the best results and generate most interesting and deep questions. We found sonar-reasoning-pro to be good as well. Built frontend with interactive quiz UI and visuals

Challenges we ran into

Ensuring question variety and difficulty balance
Aligning prompt to generate "interesting" questions and not "obvious" common knowledge questions.

Accomplishments that we're proud of

Turned complex data into an accessible quiz format
Maintained the message of Factfulness
Built a functional, realtime & live data-backed app in a short time

What we learned

Usage of perplexity APIs & when to use which APIs.
Importance of data literacy and combating bias

What's next for Factfulness Quiz

Add user accounts and progress tracking
Introduce regional or topic-based quizzes
Ability to generate quiz over CSV data sources like govt data sources around Health, Agriculture, Inflation etc