Stormlo
Maddisys Limited Weather iPhoneiPadiPod touchApple Watch
Stormlo is a free Weather app for iPhone and iPad by Maddisys Limited. Requires iOS 17.0. Updated August 25, 2026.
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- Aug 25
- 2026 · v1.0.6
Screenshots
About Stormlo
Stormlo gives you the weather you actually need — clean current conditions, a scrubbable rain radar, deep meteograms, and serious meteorological depth one tap away. Today • Current temperature, feels-like, and conditions • Hourly strip for the next 24 hours • 7-day outlook with rain probability, max/min, and UV • Sunrise / sunset / pressure / humidity / wind Radar • High-resolution rain radar with smooth scrubbable playback • Past 2 hours plus short-term forecast frames • Global coverage via RainViewer Forecast • Hourly meteogram: temperature, precipitation probability, wind • Day-by-day breakdown with precipitation totals, UV, wind • Multi-model comparison: stack ECMWF, GFS, ICON, UKMO, MeteoFrance and JMA on a single chart — see which models agree Alerts • Live severe-weather alerts via the US National Weather Service • Clear "all clear" state when nothing's active for your area • Pull to refresh, tap for full alert detail Settings • Choose your units: Celsius/Fahrenheit, km/h/mph/m/s/knots, hPa/inHg/mbar • Open the supporting site, privacy policy, terms, and support Sources • Forecast: Open-Meteo (multi-model, free, global) • Radar: RainViewer (global composite) • Alerts: US NWS Stormlo Pro The core app is free. Stormlo Pro is an optional auto-renewable subscription: • Stormlo Pro (Monthly) — billed every 1 month • Stormlo Pro (Yearly) — billed every 1 year Prices are shown in the app before you purchase. Payment is charged to your Apple Account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the period. You can manage or cancel your subscription any time in your Apple Account settings. Terms of Use (EULA): https://app.maddisys.co.uk/terms Privacy Policy: https://app.maddisys.co.uk/privacy No ads. No tracking SDKs.
What’s new
Version 1.0.6 · Updated August 25, 2026
• The model comparison chart now pinches to zoom and pans, and works in landscape. • Tap the chart to read the exact value at any point. • Readable time, day and date labels along the axis. • Each model now runs out to its own true forecast range, and ECMWF is fixed. • If you have just saved a location, Stormlo may ask what you think of it.
App privacy
The developer, Maddisys Limited, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Stormlo
Looking for apps like Stormlo? Here are 6 similar apps on the App Store. The highest rated is Weather Cards: Rain Forecast (4.8/5), and all 6 are free to download.
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METAR TAF 3D – Pilot Weather
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Weatherful
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WindXplorer
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Rain Alert & Radar: Gonna Rain
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Weather Cards: Rain Forecast
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Vetero: Weather without ads
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Stormlo | – | Free | August 25, 2026 | |
| METAR TAF 3D – Pilot Weather | – | Free | Oct 19, 2026 | Compare |
| Weatherful | – | Free | Nov 22, 2024 | Compare |
| WindXplorer | – | Free | Oct 23, 2026 | Compare |
| Rain Alert & Radar: Gonna Rain | 4.2 / 5 (6) | Free | Oct 22, 2026 | Compare |
| Weather Cards: Rain Forecast | 4.8 / 5 (12) | Free | Apr 22, 2026 | Compare |
| Vetero: Weather without ads | 4.6 / 5 (9) | Free | May 25, 2026 | Compare |
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