Mandalo.io
Mon Devis Facile for the French market
In France, millions of freelancers still build quotes in Word or Excel: existing invoicing tools are designed for SMBs — too expensive and too complex for someone sending three quotes a month. The challenge: design a radically simple, free tool that people find in one Google search — solo, with zero marketing budget. That constraint drove the naming strategy: Mon Devis Facile ('My Easy Quote') over Mandalo, our international brand. A deliberately descriptive name that says exactly what the product does and captures search intent — while Mandalo, more abstract and memorable, is built to carry the product globally. Two brands, one strategy: SEO conquest in France, scalability everywhere else.
Milestones
Launched in 2019 as a side project, Mon Devis Facile started with a simple bet: a 100% free quote generator — no forced signup, no friction. Growth was driven entirely by SEO — content architecture, pillar pages, search-intent targeting — reaching 10K monthly visitors and 1,200 signups per month without a single euro of paid acquisition. In 2025, the product leveled up: full redesign, a freemium model (unlimited free quotes, €5/month invoicing), and a data culture built on PostHog with one clear North Star — documents created per week. In parallel, France's 2026 e-invoicing reform opened a unique market window: Mandalo was born, a new app built for that shift, with the ambition to go beyond the French market." 2019 — Free quote generator launched, solo 2019–2024 — Fully organic SEO growth: 10K monthly visitors 2025 — Product redesign, freemium launch, PostHog analytics 2025 — Mandalo naming & branding, new invoicing app 2026 — Positioned for the e-invoicing reform
Go To Market
On this project, I covered the entire design spectrum — from brand strategy to the final pixel, down to code and data. A complete playground that shows what being Head of Design on a product really means: making choices, executing them, and measuring them." Brand identity — Naming (139 candidates evaluated for Mandalo), logo, art direction, tone of voice for both brands Product design — UX research, wireframes, full UI design of the quote generator and invoicing app (Figma) Design system — Components, typography, colors, shared guidelines across marketing site and app Marketing website — Design and Webflow build of mondevisfacile.fr, optimized for conversion and SEO Growth design — SEO content architecture, pillar pages, landing pages, signup funnels and freemium pricing Data & iteration — PostHog setup, North Star and product metrics definition, iterations driven by real user journeys
