# Foxling: Brain training that works offline.

Nine short games, ten minutes a day, no ads and no tracking.

- Platforms: iOS, Android and web
- Visit the product: https://foxling.oxyloop.com
- Stack: Expo, expo-router, Next.js, NestJS, Drizzle ORM, PostgreSQL, zod, TypeScript
- Built and run by: Oxyloop (https://oxyloop.com)

## What it does

- Nine short games for ten-minute daily sessions
- Plays with no signal
- No ads and no third-party tracking
- Progress tracking and subscriptions
- Account deletion that removes everything

## How it is built

A pnpm monorepo: an Expo client for iOS and Android, a Next.js web app and a NestJS API with Drizzle and PostgreSQL. Shared zod contracts: the API validates with them and every app infers its types from them.