How Natal Gym built its online program with Kaizer

Natacha Corbett opened Natal Gym Center in Rada Tilly, Chubut, Argentina, in November 2015, with a clear idea: not to look like a traditional gym. Today they work on strength, functional training, mobility and physical preparation with around 70 active members and a team of four professionals. But what defines Natal is not the list of disciplines.

"We don't want someone to just show up, take a class and leave. We want to build a community and a way of training that a person can sustain over time. Natal is a lot of that: training, community and experience," she explains.

That is the part people see. The other one, almost never talked about, is the work it takes to sustain it.

Before Kaizer, Natal's planning lived across spreadsheets, documents and PDFs. Writing the routine was only the beginning.

"The problem wasn't just building the plan. It was everything that came after: updating it, communicating the changes, making sure each person had the right information and keeping everything in order," she says.

Any coach recognizes that description, and the chain multiplies by every member, every week. "It was a significant number of hours every week. You had to think the routines through, write them, organize them, modify them, send them and then answer questions. And that repeated constantly," she sums up.

What bothered her most was not the volume but the nature of that work: "The feeling of doing an enormous amount of operational work that didn't necessarily add value. And of sending the person something that wasn't, visually, what we wanted."

That second point matters more than it looks. A center that built its identity around experience was delivering that experience in a file that did not represent it.

Natal had tried other ways of organizing itself, and none of them fit.

"Some were too basic, others were designed for a different kind of business, and we ended up adapting ourselves to the tool. We needed something that supported our methodology and our growth, not just a platform to upload routines," she says.

That is the line between a tool and a repository. A center with a method of its own does not need a place to store routines: it needs the system to respect the way that center trains.

She came to Kaizer looking to organize planning, and the first thing that caught her attention was the scope. "It didn't feel like just an app for delivering routines. I saw it as a tool that could genuinely integrate into the member's experience and into the way we work," she comments.

The second thing was less technical. Kaizer's cofounders saw she was trying the app and reached out.

"The cofounders were very attentive to everything I needed and even changed some things in the app that mattered to me. Being able to raise a concrete need and finding that on the other side they not only listened but looked for a solution built a lot of trust," Natacha says.

Her summary of what she was after is probably the best definition of the problem: "For Natal it was very important to be able to grow without growth automatically meaning more and more operational work."

It is worth being precise. Today Natal uses Kaizer mainly for Natal Online, its remote strength program: that is where the plans are built and made available so each person can open their routine in the app, with tracking in one place. In the physical gym they do not use it the same way yet.

Natal Online is not a separate product, it is the same methodology without the limits of the room. "We want someone to be able to train under our methodology wherever they are," she explains.

The experience is not identical across the two formats, and they are not trying to make it so: "The in-person member has the physical experience of Natal, the online member has the planning and the support digitally. The idea is that both feel they are inside the Natal community."

Asked what changed at Natal, the answer was short: order and time. Sending, updating and organizing plans, which used to mean loose messages and manual follow-up, is now centralized. "It seems like a small thing, but when you do it every week and with a lot of people, it adds up to an enormous amount of time," she adds.

But the real change is not the time saved, it is what that time made possible.

"We probably could have done something online earlier, but doing it in a genuinely orderly, professional and scalable way was much harder. Kaizer let us turn our in-person methodology into a far more concrete digital experience and start reaching people somewhere else," she says.

Natal Online is in its early stage and they are adding people slowly, with a conviction that is refreshing in an industry used to promising immediate growth: "This kind of project needs time, patience and consistency."

One part of this case has nothing to do with planning. Natal already had its own benefits club, built by hand with local professionals and businesses. Adding Kaizer gave its members access to the platform's benefits club as well, with more than fifty brands.

"For a member it means that being part of Natal doesn't end when the session does. They now have access to a community and to benefits with different brands and professionals, which they can use outside the gym too," she explains.

"It makes me enormously proud. Because when you build a community you want belonging to be worth something, and not only during the training hour. Being able to tell a member 'this is for you too' makes Natal more and more of an ecosystem and not just a gym," she adds.

The next step is bigger, and for the first time it reaches the room itself. On September 20, 2026, Kaizer launches its product for gyms: a layer built for training centers, not for individual coaches. Natal has been working with the team to bring the app into the gym's daily operation.

"The idea is to use it to manage payment tracking, bookings, benefits, sign-ups and cancellations, classes and all the information around our members' experience," Natacha says.

In other words, closing the loop. Today Kaizer organizes the planning behind Natal Online; the bet is that it also organizes the center's operation, which is where the spreadsheets still live. And from September 20, it can.

Natal did not change how it trains people, it changed how it sustains that. The distinction separates a useful tool from one that gets in the way: the method still belongs to the center, and the system takes care of the part nobody sees or pays for.

Order is not an end in itself, it is what makes the next thing possible. Here, an online program that was too hard to sustain on spreadsheets and that today reaches people who will never set foot in Rada Tilly.

Her closing line, after ten years, says plenty: "Natal is only just getting started. And the best part is that we still have so much left to build."