About Rain Viewer

We believe everyone deserves accurate rain prediction.

At MeteoLab Inc., we’re on a mission to deliver the most precise precipitation forecasting technology directly to your fingertips. What started as a simple idea in 2015 has grown into the world’s most comprehensive weather radar platform, trusted by millions of users across many countries.

Our Mission

Every day, people make decisions based on weather forecasts. Will it rain during the school pickup? Should I plan that outdoor event? Can I safely drive through this storm? These aren’t just questions—they’re moments where accurate weather data can make the difference between safety and danger, success and disappointment.

We’re passionate about solving this challenge through technology that processes over 1,000 weather radars globally, delivering sub-kilometer precision with updates every 5 minutes. Our goal is simple: provide the most accurate rain prediction available anywhere, accessible to everyone.

The Team Behind the Technology

We’re a focused team of 11 engineers, designers, and weather enthusiasts who believe that exceptional forecasting comes from combining cutting-edge technology with deep meteorological expertise. Based across multiple time zones but united by our obsession with weather accuracy, we work together to push the boundaries of what’s possible in precipitation prediction.

Every member of our team contributes to our core mission. From our iOS and Android developers who optimize radar rendering to achieve 60fps performance, to our backend specialists who process terabytes of radar data in real-time, to our designers who make complex meteorological information beautifully simple—we’re all driven by the same goal.

Our Founder’s Story

Oleksii Schastlyvyi, our CEO and founder, has been obsessed with rain since 2006. As a software engineer with a background from Ukraine’s National Technical University, Oleksii combined his technical skills with his passion for meteorology to create something that didn’t exist: a weather app that provides meteorologist-grade radar data to everyday users.

Starting as a backend engineer in 2015, Oleksii built the first Rain Viewer prototype, then developed the iOS app, followed by Android, all while continuously upgrading our web platform. His vision was simple but ambitious—make professional-quality weather radar data accessible to everyone, not just meteorologists.

Today, Oleksii leads our team with the same hands-on approach and technical passion that started Rain Viewer. His commitment to accuracy and innovation drives every decision we make, from choosing which radar technologies to implement to designing user experiences that make complex weather data immediately understandable.

What Makes Us Different

We process our own data. Unlike most weather apps that rely on third-party providers, we collect, process, and analyze radar data directly from over 1,000 radar stations worldwide. This means faster updates, higher accuracy, and complete control over data quality.

Privacy is fundamental. We don’t collect your personal data, don’t sell your information, and don’t track your location unless you explicitly allow it for weather alerts. Your privacy isn’t a feature—it’s our foundation.

Professional tools for everyone. Our PRO Radar technology provides the same raw, high-resolution data that meteorologists use, but through an interface that anyone can understand. Multiple radar products, multiple tilt angles, and sub-3-minute updates give you unprecedented insight into approaching weather.

Global coverage, local precision. From the smallest rural town to the largest metropolitan area, our network of 1,000+ radars provides coverage across 75 countries with sub-kilometer accuracy. Whether you’re in rural Montana or downtown Tokyo, Rain Viewer delivers precise local forecasting.

The Technology We’re Building

Rain Viewer isn’t just an app—it’s a platform built on cutting-edge meteorological technology:

Our Impact

Since 2015, Rain Viewer has helped users avoid rain over 4.7 million times, provided critical warnings for 86 tropical cyclones, and delivered reliable precipitation data during countless storms, outdoor events, and daily decisions.

But the numbers only tell part of the story. Every day, we receive messages from users who avoided dangerous driving conditions, successfully planned outdoor weddings, or simply stayed dry on their way to work because Rain Viewer gave them accurate, timely information that other apps couldn’t match.

Looking Forward

Weather prediction is evolving rapidly, and we’re committed to staying at the forefront. We’re continuously expanding our radar network, improving our forecasting algorithms, and developing new ways to make weather data more accessible and actionable.

Our upcoming innovations include expanded global coverage and even more precise short-term forecasting. But our core mission remains unchanged: deliver the most accurate rain prediction possible, accessible to everyone who needs it.

Why We Do This

Weather affects every aspect of our lives, yet most people have access only to generic forecasts that treat entire regions the same way. We believe you deserve better. You deserve to know exactly when rain will start at your specific location, how heavy it will be, and how long it will last.

We’re building Rain Viewer because we believe that better weather information leads to better decisions, safer communities, and more successful lives. When you can trust your weather forecast down to the minute, you can plan with confidence and stay prepared for whatever nature brings.


Rain Viewer is developed by MeteoLab Inc., a weather technology company founded in 2015 in Naples, Florida. Our team operates remotely across multiple countries, united by our commitment to advancing precipitation forecasting technology.

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