design+code
Most fitness studios spend months picking the right management platform. They compare pricing pages, watch demos, read G2 reviews, negotiate contracts. Then they go live, paste a widget onto their website, and call it done.
That widget is the problem.
All four platforms we work with regularly, Resamania, Mindbody, BSport, and Marianatek, ship a default booking widget. It is the path of least resistance. It is also, in almost every case, the weakest point in the member experience: a visual break, a conversion killer, and a tracking black hole arriving at exactly the wrong moment.
Here is what each platform actually is, what they give you by default, and what becomes possible when you go further.
Mindbody is the global market leader. It is the default choice for studios that launched before 2018 and never switched, for networks that need a proven backend at scale, and for anyone operating across multiple countries who needs a single source of truth for memberships, scheduling, and payments.
The backend is genuinely solid. Class scheduling, waitlists, membership management, payment processing, reporting: all well-tested and reliable. They have 90+ third-party integrations and an API that, while access-controlled, is mature and well-documented.
The booking widget, called Branded Web Tools, is where things fall apart. It renders as an iframe. It has its own fonts, its own colors, its own pace. On mobile, where most clients actually book, it is slow and cramped. It fires no GA4 e-commerce events, so every conversion is invisible to your ad campaigns. And it looks like Mindbody, not like your studio.
We work on Mindbody daily. RIISE Studios, Dynamo Cycling, and Punch Studios (Monday Sports Club) all run on Mindbody. What we built for each of them is a custom booking interface wired directly to their Mindbody account via API, removing the iframe entirely and replacing it with an experience that matches their brand down to the last detail.
Resamania, now part of the Xplor group, is the dominant French platform for fitness clubs and networks. Pricing starts at 159 euros per month, and the platform covers CRM, subscriptions, online booking, a member mobile app, and marketing automation.
What makes Resamania interesting technically is that they describe themselves as API-first, and they back it up with public developer documentation at doc.resamania.com, a sandbox environment, and a dedicated integration process. The catch: API access is an optional module, billed at an additional 30 euros per month. It is not included by default.
Their standard booking widget follows the same pattern as Mindbody's. Functional, generic, disconnected from the rest of your site. The good news is that the API is clean enough to build on top of properly, which opens the same possibilities as Mindbody for studios willing to go that route.
Resamania tends to be the choice for mid-size French clubs with a strong offline component, multiple sites, and a need for solid local support.
BSport is the European challenger. Pricing is around 150 euros per month, and the platform is explicitly positioned as the modern alternative to Mindbody for boutique studios in France and across Europe.
They have a real API, documented and open, with 14 native integrations covering payments (Stripe), class aggregators (ClassPass, Wellhub), marketing (Mailchimp), video (Zoom, YouTube, Vimeo), and accounting (QuickBooks). For a platform at this price point, the integration surface is genuinely impressive.
The member-facing experience is more modern than Mindbody out of the box. But the default booking widget still carries the same structural limitations: no custom tracking, design tied to BSport's interface rather than yours, and a break in the visual continuity of your site.
BSport is the right call for a boutique studio launching today in Europe that wants a capable, affordable backend and is not yet ready to invest in a custom booking layer.
Marianatek is the American boutique-first platform, and it is the most developer-friendly of the four. Their API architecture is split into distinct layers: an Admin API for backend and business logic, a Customer API for member-facing experiences, a Studio API for configuration, a dedicated Stripe API for custom checkout flows, and a Documents API for waivers. Public documentation lives at guides.marianatek.com.
In theory, this makes Marianatek the platform best suited to building a fully custom booking experience on top of.
In practice, the default path is still the widget. We worked on the Sant Roch studio website integrating Marianatek's booking tool via iframe. The experience was exactly what you would expect: a clean studio with a strong visual identity, and a booking flow that looked like it belonged to a different product. Fast to set up. Immediately visible as a compromise.
Choosing between these four platforms usually comes down to geography, budget, and the size of your network. Mindbody for established US-adjacent or multi-country operations. Resamania and BSport for France and Europe. Marianatek for boutique US studios that want the best front-end flexibility in theory.
But there is a more important question than which platform to pick, and it applies equally to all four: are you going to use the widget they give you, or are you going to build on top of their API?
The widget is fast to deploy and costs nothing extra. It also means:
The API route takes more investment upfront. What it gives you in return is a booking experience that is indistinguishable from the rest of your site, full tracking, and the ability to build exactly what your members actually need.
The backend is not the bottleneck. For all four of these platforms, the backend does its job. The bottleneck is always the last step: the moment a member decides to book, and what they see when they do.
If your studio runs on any of these platforms and the booking experience does not match the quality of everything else you have built, we should talk.
We work on Mindbody daily and are expanding to Resamania and BSport. Reach out at bonjour@dellamattia.com or via thebookingduo.com.