Paris-based Startup Tandem Raises $3.8M In Seed Round

As apps become more advanced, they also become harder to use. Many features go unused, onboarding takes too long, and users leave before seeing value—putting pressure on support teams.

Today, 64% of new users never fully activate. Meanwhile, companies spend 5–8% of their revenue on customer support, mostly to help users understand features. This results in higher costs, user drop-off, and missed growth opportunities. Tandem aims to fix that with AI-powered in-app guidance.

Founded in 2024 by Christophe Barre and Manuel Darcemont, Tandem uses in-product AI to help software users complete tasks seamlessly. The company was launched at Hexa, the startup studio behind successful ventures like Front, Spendesk, Aircall, and Swan, with Partner Florent Quinti.

Christophe Barre, CEO & co-founder of Tandem, commented: Users shouldn’t have to learn a product before they can use it. We built Tandem because too many valuable features go unused, and users don’t need more explanations of how to use them - they just need the ability to act. Tandem steps in at that moment of friction, helping users move forward by doing the task with or for them.

Tandem makes it easy for users to get help and complete tasks directly inside the app. A “Do it with AI” button lets users hand off actions like setup, form-filling, or configuration with just one click. Behind the scenes, an AI agent understands both the product and the user’s needs to complete tasks on their behalf.

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The company was launched at Hexa, the startup studio behind successful ventures like Front, Spendesk, Aircall, and Swan. Partner Florent Quinti says AI is changing the way we interact with software.

People are no longer satisfied with clicking through menus and tutorials - they expect to get things done. Tandem is a response to that change by adding a layer of execution inside the product, right where users need it.

Tandem is already being used by companies like Qonto, Aircall, Kraken, and Sellsy. Early results show a strong boost in user activation and reduced drop-off rates, thanks to its ability to take action and remove friction for users.

Maxime Champoux, Head of Product at Qonto, shared: Using Tandem feels like infusing a bit of magic into our product. It effectively addresses our navigation challenges, enabling our users to extract more value from Qonto. As a result, we see an increase in activation and a decrease in company-wide support tickets.

With the new funding, Tandem will open a U.S. headquarters in San Francisco, expanding its presence beyond its current base in Paris.

About Tandem

Tandem is an in-app AI assistant that helps users discover, set up, and use key features effortlessly. By talking, guiding, and completing tasks, it turns regular users into power users—improving activation, reducing support costs, and helping people get more value from your product.