Mince & En Forme: a coaching SaaS with AI, delivered turnkey

For a nutrition coach, success eventually turns against you: every new client adds hours of follow-up, and time becomes the scarce resource. That is the wall Mince & En Forme hit. Nova Studio turned a service business into a product: a complete SaaS, with an AI assistant trained on the coach's own protocols, letting him follow 3x more clients without hiring and reclaim more than 20 hours a week of support.

In short

• The client: Mince & En Forme, personalised nutrition coaching
• The challenge: An operational ceiling. Capacity was tied directly to the coach's available hours
• The product: A SaaS with a proprietary AI chatbot, client area, dashboard and subscription automation
• The delivery: The live SaaS, its source code, documentation and two months of maintenance
• The impact: 3x more clients followed, 70% of first-line questions absorbed by the AI

1. The starting point: turning a service into a product

The business model rested entirely on the founder's time. The more clients he won, the more the follow-up load exploded. He faced a binary choice.

Hire an assistant coach: a fixed salary of €35,000 to €45,000 gross per year including contributions, training time, management risk. And above all linear returns, since each extra hire only pushes the ceiling further out. Or turn clients away, and stall.

Scoping surfaced the real friction: it was not the coach's expertise, but its distribution. Clients asked the same basic questions about nutrition, exercise form, meal planning. Meanwhile, measurement tracking was scattered and slow to analyse. The scope of version 1 was drawn around those two findings, before a line of code was written.

2. Building: AI where it genuinely adds something

The product was built as an extension of the coach's method, not as a generic tool he would have to bend to.

What the SaaS is made of

• A RAG-based AI assistant. This is the core of the product. The chatbot is trained exclusively on the documentation and protocols of Mince & En Forme, where a generic AI would give unsuitable, even risky advice on a health topic. The coach manages that knowledge base himself. The assistant answers clients around the clock, in his method.
• A hybrid inbox. When the AI reaches its limits, or when a client needs genuine human support, the coach takes over in the same interface. The AI filters, the coach handles what matters.
• A client area and a dashboard. Each client logs their measurements, the coach reviews everything consolidated. A global search retrieves any profile, resource or history instantly.
• Lifecycle automation. Stripe handles subscriptions and payments, Brevo the reminders and encouragements, with no manual work.

Regular checkpoints during development let the coach validate each part as it came, particularly the assistant's behaviour, which needed fine tuning.

3. At delivery: a product he owns

The SaaS went live with the full codebase, documentation covering the architecture and how to take the project over, several onboarding sessions, and two months of maintenance while the product met its first users.

The results:

• A model with no ceiling. Capacity no longer depends on hours worked. Active users tripled with no drop in satisfaction.
• A better return than a hire. Development paid for itself in under 8 months against the total cost of an employee over the same period. The marginal cost of one more client is close to zero.
• Refocused on what matters. With 70% of first-line interactions absorbed by the AI, the coach spends his time analysing client data and on the conversations that need his clinical expertise.

"It is risky to give a very positive review, it can seem excessive, but I have to say the work and collaboration with Nova Studio suited and satisfied me completely. The team is very sharp at understanding the project as a whole and in its details. There is no need to explain at length for them to build concrete, creative features, going beyond my expectations. And all of it very fast, reachable almost seven days a week, from morning until late. In short, excellent work, and I intend to continue with Nova Studio long term. I recommend them 100%, you can even contact me to verify this recommendation."
Founder of Mince & En Forme

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Mince & En Forme shows what a product built around an existing method rather than around a technology looks like: a service business made scalable, with AI where it saves time.

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