Ravi Sathe, founder and developer of Rizono

The founder issue · Rizono

Ravi Sathe: He built the whole fitness app. Alone.

Calories, steps, workouts, gyms and trainers in one app. Ravi Sathe designed every screen and wrote the web app, the backend and the Android apps himself.

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Name: Ravi SatheFounder & Developer
Years building software: 4+
Apps: member, partner, admin: 3
Designed & coded in-house: 100%

Why I built Rizono

Getting fitter shouldn't need five different apps.

Rizono started with a simple frustration: food in one app, steps in another, workouts in a third, and no easy way to find a good gym nearby. I wanted one place that does all of it well and stays simple enough to use every single day.

As founder and developer, I designed every screen and wrote the web app, the backend and the Android apps myself, so every detail fits together.

Mission

Make healthy habits easy to start and easy to keep, for everyone, free.

How I build

Clean, fast, maintainable code. Phone-first screens. No feature without a real reason.

Ravi Sathe

Everything in one app

Four features, one login. Open any of them and try it.

The kit behind Rizono

One full-stack setup for web, server and mobile, all written by one developer.

Frontend

Angular
TypeScript
RxJS & Signals
HTML5
SCSS
GSAP

Backend

Java
Spring Boot
REST APIs
Database design
JWT security

Mobile

Capacitor
Android
Push notifications
Offline sync

Design & Ops

UI/UX design
Dark mode
SEO & SSR
Performance
Cloud deployment

From idea to launch

How Rizono came together, one stage after another.

Idea
Fitness apps were scattered: one for food, one for steps, one for workouts. I set out to put it all in one place.
Planning
Mapped the features, the data model and the APIs before writing the first screen.
Design
Every screen designed for phones first: clear numbers, few taps, light and dark themes.
Build
The Angular web app, the Spring Boot backend and the Android apps, from the ground up.
Testing
Real devices, real days of use, every rough edge fixed along the way.
Launch
Rizono went live on the web and Android for members, gyms and trainers.
Next
Smarter suggestions, more guided workouts and deeper progress insights.

What guides every decision

Six rules every Rizono feature has to pass.

Simplicity

Fewer taps, clearer numbers. If it needs a manual, it isn’t done.

Reliability

Your data is safe, and the app works even when the network doesn’t.

Performance

Fast loads and smooth screens on everyday phones, not just flagships.

User first

Every feature starts from a real need of someone trying to get fitter.

Useful tech

Modern tech only where it helps, like snapping a photo to log food.

Always improving

Small updates, often. Feedback goes straight into the next release.

Let's talk.

A partnership, a gym or trainer listing, a job, or a feature you'd love to see. I read every message.