About this app
Multi Weather lines up several forecasts side by side so you can spot the disagreement at a glance. Instead of trusting one forecast, compare the official JMA forecast and multiple numerical models to make on-site Go/No-Go calls fast. ■ Compare multiple models at once See JMA (official), GFS (NOAA), MET Norway and Apple — whichever are available for your location — in one timeline. Weather icons, precipitation (amount/probability), wind, temperature and humidity, side by side. ■ Spot risk from model disagreement Hours where the models disagree (high uncertainty) are highlighted. The way professionals reason from model spread — in seconds, for anyone. ■ Evidence export (CSV) Export the comparison as CSV to share. Hand a clear basis for a stop/postpone decision to clients or contractors. ■ Jump to other services Open JMA, tenki.jp, Yahoo Weather or Windy for the exact spot you're viewing, in an in-app window. ■ Built for the field For construction, civil works, ports, surveying, drones, film shoots, fishing and hiking — anything weather-dependent. Note: This app does not produce its own forecast. It is a comparison tool for confirmed open data and official agency forecasts (e.g. JMA). Final decisions are your responsibility. The first 30 days are completely free. To keep using all features afterward, an auto-renewing subscription (monthly or yearly) is required — cancel anytime. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://qconp.com/privacy
Latest release
What’s New
• Added ECMWF (European Centre for Medium-Range Weather Forecasts) — compare up to 6 days ahead. • Added cloud cover. • Links to other forecast services expanded to 12 countries and always visible. • Improved the iPad layout.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 31, 2026 · 11:48 AM Free