Kelthen is a boutique digital agency crafting high-performance websites, web apps, and automation systems for founders who refuse to blend in.
What we do
From a landing page to a full enterprise system — we build it right, the first time. No bloat. No fluff. Just results.
Conversion-focused websites that look exceptional and perform even better. From landing pages to full e-commerce platforms.
Cross-platform mobile apps and custom software built to scale. iOS, Android, and everything in between.
Eliminate repetitive tasks and let your team focus on what matters. We automate your workflows end-to-end.
Claude API, OpenAI, custom LLM pipelines. We embed AI into your existing products or build new ones from scratch.
Not sure what you need? We audit your current stack, identify bottlenecks, and propose the right solution — no upsell.
From idea to revenue. We build full SaaS products with auth, payments, dashboards, and everything needed to launch fast.
Selected work
Automatisation en direct
Exemple réel : le bot de Cuties Chichi gère un rendez-vous de bout en bout — personne ne pianote.
Le client discute avec le bot AURA (Telegram / WhatsApp) et envoie une photo de référence.
Chichi est prévenue sur Telegram + WhatsApp — la photo de référence est jointe.
Un tap et tout part : SMS, email, Google Agenda, puis rappels automatiques.
How we work
Free 30-minute call to understand your goals, constraints, and timeline. No sales pitch — just listening.
You receive a clear proposal within 48h — fixed price, detailed scope, and a realistic timeline. No surprises.
Weekly updates, live previews throughout the build, and direct Slack access. You're always in the loop.
We handle deployment, testing, and post-launch support. You launch with confidence, not question marks.
Pricing
Starter
One-time · Small projects · ~7 days
Growth
One-time · Full projects
Enterprise
Tailored · Complex systems
Ready to build?
Tell us about your project. We respond within 24 hours — no sales pitch, just a real conversation.
Message sent.
We'll be in touch within 24 hours.