Timeleft is a friendship app launched in 2020 that has scaled from 4 to 90+ employees in 18 months, reaching 150k monthly users and €18M ARR after 20 months. The tech stack (NestJS, Next.js, React, React Native, Firestore, Supabase, Firebase, BigQuery) reflects a mobile-first product with real-time infrastructure; the project roadmap—analytics tracking, experimentation framework, revenue intelligence, mobile automation—shows a company maturing from product-market fit into revenue optimization and testing velocity, while data inconsistencies and slow incident handling suggest infrastructure growing faster than observability.
Timeleft builds a mobile and web app designed to help users form genuine friendships, starting with group dinner events among strangers and extending into ongoing relationship-building features. The product is positioned around creating conditions for repeated, meaningful interactions—signaling mutual interest, inviting people back, and integrating new connections into existing social circles. The company operates from Paris and is hiring across France, China, Taiwan, and Belgium, with active roles spanning engineering, ops, data, product, and marketing, indicating a scaling phase focused on both product expansion and monetization infrastructure.
Timeleft uses NestJS and Node.js on the backend, Next.js and React on web, React Native for mobile, and Firestore/Firebase/Supabase for data. Testing tools include Playwright, Cypress, and WebdriverIO; analytics run on BigQuery with dbt transformation.
Timeleft reports 150,000 monthly active users and €18M ARR after 20 months of operation. The company scaled from 4 to 90+ employees in 18 months.
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