Looking for a No-Code Developer (1x/week) – Let’s reshape fitness and well-being together!
Photo by Onur Binay on Unsplash
Hi! I’m Sachiyo Yasunaga, co-founder of FIT4U.
We’re currently building our first platform on Adalo, aiming to launch this summer, and now looking for a teammate to join the ride 🚀
💪 Why fitness?
I’ve spent the past 10 years working across Latin America.
Because of safety issues in some areas, I couldn’t really go outside. So, I turned to indoor workouts — and realized how much fitness supports both your body and your mind.
I was inspired by friends who competed in fitness competitions, and after returning to Japan, I decided to take on the challenge myself. In September 2024, I competed in Best Body Japan (Model Division, Kofu) and was awarded 2nd place.
It wasn’t easy—training every day and sticking to strict nutrition took a toll.
Even outside of competition prep, it was hard to maintain a consistent routine.
But group fitness classes always lifted me back up.
Being surrounded by the vibrant energy of trainers and other participants, laughing and pushing each other forward, helped me keep going.
That sense of connection became my strength.
And I wanted to share that with others.
And it made me think —
“What if more people could experience this motivation and joy through fitness?”
🌟 Why I started FIT4U
While joining various group classes in Japan and abroad, I had some recurring thoughts.
Sometimes, I’d see amazing classes that could fit 20 people, but only 10 would show up.
“What a waste—this class is so fun, more people should be here!”
Or a trainer I loved suddenly left a gym, and I’d find myself not going anymore.
“If only I could find them again somewhere else…”
I also noticed that many group classes are only accessible if you join a specific gym in Japan.
That made me think:
“What if there was a way to connect with trainers and lessons more freely—beyond the walls of a gym?”
That’s how FIT4U was born.
Trainees can now find the classes they want, at the time and place that suits them.
And trainers can showcase the lessons they’ve built up over time to a wider audience.
🧘♀️ What is FIT4U?
FIT4U is Japan’s first matching platform focused on connecting fitness trainers and the power of group lessons.
- Trainers can freely set up their own lesson details, including bio, schedule, location, and pricing.
- Trainees can browse trainer profiles, compare schedules and lesson content, and reserve sessions easily.
- On the day of the class, all they have to do is enjoy — and leave an honest review afterward!
(While group lessons are our main focus, personal training sessions will also be supported in the future.)
🌈 Our Mission
FIT4U empowers trainers with more freedom, and gives trainees more flexible, enjoyable options.
We aim to build a supportive, community-based fitness platform that encourages connection, motivation, and personal well-being—while contributing to the well-being of society, both in Japan and beyond.
If this mission resonates with you, we’d love to build it together.
We’re looking forward to hearing from you!
🌐 Website: https://fit4ubyinvicta.studio.site/ (jn progress)
📩 Email: ceo@invictajp.com
