RainCatch RainCatch
Rain barrel fill forecast
Only for iPhone
$1.99 · Designed for iPhone. Not verified for macOS.
iPhone
Turn the next rainfall forecast into liters or gallons for your own roof and tank—before the first drop lands.
Know what the next rain will add to your tank.
RainCatch turns a rainfall forecast into a practical estimate for your rain barrel or water tank. Add your roof catchment area, collection efficiency, tank capacity, and current level to see how many liters or gallons you can collect, when the tank may fill, and how much water may overflow.
• Forecast rainwater collection by day
• See expected tank level and overflow
• Track water used for your garden
• Compare several tanks and roof catchments
• Home Screen widget for the next expected collection
• Metric and US customary units
• Optional location-based forecast
• Manual rainfall mode works without location
• No account, advertising, or analytics
Estimates are intended for planning non-potable outdoor water use. Actual collection varies with roof shape, gutter losses, debris, wind, and local conditions.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Yoshiaki Hirokawa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yoshiaki Hirokawa
- Size
- 3.4 MB
- Category
- Weather
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 43 more
- English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 netflowers
