Rainfall Calculator app icon

Apps Like Rainfall Calculator for iPhone and iPad

Calculate rainwater harvest, savings, and tank size

Calculate annual rainwater harvest in liters or gallons using catchment area and depth. Input units can be customized with decimal precision. Copy results to other apps and access formula references for accurate calculations.

by Tan Chia Ling★ 5.01 ratingsProductivity$2.99Data updated 2026-09-16

Rainfall Calculator screenshots

Ranked alternatives

Showing 61–80 of 1,000 ranked alternatives.

  1. Tempest Weather app icon

    Tempest Weather

    WeatherFlow

    Set up and connect your sensor

    Set up and configure sensor device via WiFi. Monitor real-time temperature and humidity. Receive lightning and rain alerts. View accurate local forecasts. Track conditions continuously.

    ★ 4.0499 ratingsWeatherFreeData updated 2026-10-25
  2. Weather forecast & Alerts app icon

    Weather forecast & Alerts

    KuXun Technology Co., Ltd.

    Track , radar, and

    Monitor current conditions with hourly forecasts and 24-hour radar. Track severe storms, heavy rain, and heat waves. Personalize settings for skin health and air quality . View live Doppler radar and hurricane updates.

    ★ 4.4119 ratingsWeatherFreeData updated 2026-09-24
  1. Pitch Gauge app icon

    Pitch Gauge

    Pitch Gauge LLC

    Preview roof on map, save or import

    Track and measure roof dimensions using a sketch tool and positioning features. Preview roofs on maps or import images/blueprints. Save measurements and label lines. Take and save photos for documentation.

    ★ 3.8266 ratingsBusinessFreeData updated 2026-09-08
  2. Length Mass Speed Converter app icon

    Length Mass Speed Converter

    AR Code Pte. Ltd.

    Convert units for distance and area

    Convert units for distance, area, volume, and . Switch between mm, cm, m, km, in, ft, yd, mi, and their squared or cubed equivalents. Convert grams, kilograms, tonnes, and oil barrels to liters or gallons.

    ★ 4.614 ratingsUtilitiesFreeData updated 2026-09-15
  3. PWC Trader app icon

    PWC Trader

    Trader Interactive, LLC

    Browse and buy PWC models online

    Browse and compare new and used personal watercraft models. Filter by type, price, and features. View detailed specifications and images. Contact sellers directly through the .

    ★ 4.7369 ratingsLifestyleFreeData updated 2026-09-12
  4. Plumbing Formulator app icon

    Plumbing Formulator

    Historycentral.com Inc

    Professional calculator for plumbing and HVAC.

    The app offers over 200 formulas and tools for plumbing, HVAC, and mechanical contractors. It includes calculators for water flow, piping, drainage, water heaters, pumps, gas, medical gas, pools, septic, and thermal expansion.

    ★ 4.67 ratingsProductivityFreeData updated 2026-09-10
  5. OneClick Code - Building Codes app icon

    OneClick Code - Building Codes

    One Click Reports

    Access and updates instantly

    Access roofing for any US address instantly. Retrieve real-time updates on changes. Verify requirements for specific projects. Minimize errors and save time with accurate, up-to-date information.

    ★ 4.8182 ratingsBusinessFreeData updated 2026-09-14
  6. Navisizer app icon

    Navisizer

    Navien, Inc.

    Size systems, calculate costs, generate specs

    Calculate heating system requirements for residential and commercial applications. Input system data to determine sizing and operating costs. Generate detailed reports for job specifications and energy savings analysis.

    ★ 2.426 ratingsProductivityFreeData updated 2026-09-14
  7. AIM Weather app icon

    AIM Weather

    Mendo Jurukovski

    Local United States weather information.

    The app provides local weather information for the United States and its territories. It includes a radar view, hourly forecasts, and a 7-day outlook with detailed weather charts.

    ★ 4.4153 ratingsWeatherFreeData updated 2026-09-30
  8. Home Improvement Calcs app icon

    Home Improvement Calcs

    Calculated Industries, Inc.

    Calculate tasks with precision

    Provides calculations for DIY and tasks. Users can convert units and solve equations using decimal or fractional inputs. Save calculations, organize favorites, and email inputs and results for sharing.

    ★ 4.8104 ratingsUtilities$4.99Data updated 2026-09-08
  9. Winery Math app icon

    Winery Math

    Elizabeth LeBeau

    Calculate wine chemistry and adjust ingredients precisely

    Calculate potassium meta-bisulphite needed for 40 ppms in 60 gallons or 800 liters. Determine total acidity and adjustments for target levels. Calculate sugar or water needed for chaptalization or dilution. Convert between metric and English units.

    ★ 4.04 ratingsUtilitiesFreeData updated 2026-09-08
  10. Tank Measure: Volume Calc app icon

    Tank Measure: Volume Calc

    Vladislav Zhirnov

    Calculate with precision

    Calculate for horizontal and vertical cylinders with flat heads, rectangular tanks, and horizontal vessels. Input dimensions and liquid height to get accurate results. Export calculations and share data directly.

    ★ 4.246 ratingsUtilitiesFreeData updated 2026-09-06
  11. ImoLaza app icon

    ImoLaza

    Wuhan Chuangside Technology Co., Ltd.

    ★ 3.021 ratingsLifestyleFreeData updated 2026-09-06
  12. RainBytes: Offline Rain Sounds app icon

    RainBytes: Offline Rain Sounds

    炜东 黄

    Listen to and relax

    Listen to and choose from various natural audio options. Set a countdown to start automatically. Access a lock screen widget for quick access. View animations and use landscape mode. Fully compatible with iOS and Android.

    ★ 4.657 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.