Rendered in real time
Atmosphere, cloud, water, rain, snow, light and weather effects are drawn live on the device rather than played back from prerecorded scenes.
Press kit · October 2026
Weather,
rendered alive.
Sundaze is an iPhone weather app that turns real conditions and forecasts into a living 3D sky, rendered in real time on the device.
This is not prerecorded weather video. The world is rendered live on the iPhone.
At a glance
Fast facts
- Platform
- iPhone · iOS 17+
- Developer
- Bitward
- Creator
- Matthieu Chopin · independent developer & graphics engineer
- Availability
- App Store · 19 countries: United States, Canada, Mexico, United Kingdom, Ireland, France, Germany, Spain, Austria, Switzerland, Belgium, Luxembourg, Netherlands, Sweden, Norway, Denmark, Finland, Australia, New Zealand
- Category
- Weather
- Price
- Free download · optional Premium
- Forecast
- Full three-day forecast included free
- Account
- No account or sign-in required
Why Sundaze
The forecast becomes the sky.
Forecast you can move through
Swipe through time and the world responds: the light turns, clouds thicken and weather arrives while the underlying forecast remains readable.
Made to explore
Rare moments become collectible cards, and some discoveries open small arcade games built into the weather experience.
Designed as an experience
Sundaze treats checking weather as a small act of observation — closer to looking outside than scanning another dashboard.
Images
Media gallery
Each image below has a stable direct-download URL. The media kit bundles the same selection with reusable copy and usage notes.
Additional product UI and weather captures: Achievements list · Pinball · Storm · 3-day forecast · Hourly forecast · Cloudburst
Independent by design
Why build weather this way?
Sundaze is an independent iPhone app created by Matthieu Chopin. Rather than treating weather as another information dashboard, the project started with a simple question: what if checking the forecast felt closer to looking outside?
The app was built around a custom real-time rendering approach so weather, atmosphere and light can become the interface itself. The intentionally ambitious scope grew from there into collectibles, hidden events, alternate visual styles and small games woven into the changing sky.
About the creator
Matthieu Chopin
Matthieu Chopin is a senior software engineer and technical leader with more than 25 years of experience in real-time 3D. His career spans the game industry, mobile graphics, rendering engines and industrial visualization. He was a key contributor to Wonka, Zenly’s proprietary 3D map engine built from scratch for mobile, and to RED Engine, a real-time photorealistic rendering engine, working alongside dedicated engineering teams. Today he works through Bitward, building high-performance 3D systems and independent products such as Sundaze.
LinkedIn profileDownloads
Everything in one place.
ZIP
Complete media kit
Logo mark, six curated high-resolution screenshots plus additional weather, forecast, achievements and game captures, preview image, reusable press copy and usage notes.
TXT
Press copy
One-line description, short description, facts and product pillars.
PNG
App icon · 1024 × 1024
Official Sundaze App Store icon for editorial use.
TXT
Media usage
Simple editorial usage notes for screenshots and the Sundaze logo.
Review access · interviews · additional footage
Need something else?
For review access, clean footage, additional screenshots or technical questions, contact us directly.
press@sundazesky.com