Rain Chk reads your calendar, checks the forecast for each event's actual time and place, and sends a short, specific heads-up before you need one — not a generic weather app notification, a prep tip for the thing on your calendar.
Free during the beta · iPhone · Requires TestFlight
Every other weather app makes you go check it yourself, for a place you have to remember to look up. Rain Chk skips that entirely.
Grant access to the calendars you want covered — reads directly from EventKit, entirely on-device, nothing uploaded anywhere.
For every upcoming event, Rain Chk resolves its location and pulls the actual forecast for that place and time — not just "today's weather."
A short local notification with what to expect and what to bring — only when the forecast is actually worth mentioning, timed to when it's useful.
Kids' soccer game 10:00 AM – 11:30 AM, Dorey Park
Apple's on-device model writes every heads-up — plain, direct, and specific to your event, with a deterministic fallback if the model isn't available.
No ping for a calm, clear forecast — and a scheduled notification re-checks closer to the event, so its content never goes stale.
A minute-by-minute rain chart for the next 60 minutes at any event's location — "rain starting in 12 min," not just a daily percentage.
A weekend trip or a multi-day event shows up — and gets a real forecast — on every day it spans, not just the day it starts.
Your next event's weather and prep tip, at a glance, without opening the app.
For an event coming up within the hour, a quick drive-time read alongside the forecast — so "should I leave now" has one answer, not two apps.
Real screenshots from the app are on the way — for now, here's where they'll go.
Calendar access stays on-device via EventKit, and Apple's on-device model writes every heads-up — only the event's coordinates and time go out, to Apple's own WeatherKit, to fetch the forecast. No third-party analytics, no ad tracking.
It's early — the beta is small and invite-only right now. Invites aren't open yet, but check back soon.
Invites coming soon
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