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 121–140 of 1,000 ranked alternatives.

  1. HotTub&Pool app icon

    HotTub&Pool

    Pixelwand Ltd

    Chemical calculations for pool owners.

    The app helps hot tub, spa, and pool owners calculate chemical doses for calcium, alkalinity, pH, sanitizer, and stabilizer. It also includes a water balancing feature to calculate the Langelier Saturation Index for system maintenance.

    ★ 3.513 ratingsUtilitiesFreeData updated 2026-09-13
  1. Cloud-W app icon

    Cloud-W

    BIOR LTD

    Track weather, forecasts, and moon phases

    Track weather forecasts for up to 10 days with hourly updates. View maximum, minimum, and average temperatures. Monitor wind speed, sunrise and sunset times, humidity, cover, and moon phases. Receive alerts for light rain and UV index changes.

    ★ 4.533 ratingsUtilitiesFreeData updated 2026-09-06
  2. ABV Calculator Gravity & Plato app icon

    ABV Calculator Gravity & Plato

    Wilson Baraban Filho

    Calculate ABV from Original and Final

    Calculate Alcohol By Volume (ABV) using Original (OG) and Final (FG) readings. Input measurements for . Determine alcohol content percentage. Export results for record-keeping.

    ★ 4.858 ratingsFood & DrinkFreeData updated 2026-09-06
  3. meter.me app icon

    meter.me

    Lamarr, Inc.

    Monitor water levels and usage remotely

    Monitor water usage, tank, well, and pond levels remotely. Receive alerts about usage, pump, and valve status. View the water system on a map. Control pumps and valves remotely for beta users.

    ★ 5.014 ratingsUtilitiesFreeData updated 2026-09-30
  4. Aviation Fuel Converter app icon

    Aviation Fuel Converter

    Jay Ferguson

    Convert units and track amounts

    Convert Jet A or 100LL between US gallons, pounds, liters, and kilograms. Enter type, units, remaining amount, and desired amount for accurate conversion. Adjust and save specific gravity and conversion factors.

    ★ 4.725 ratingsUtilities$3.99Data updated 2026-09-08
  5. GageMap app icon

    GageMap

    Clark County Regional Flood Control District

    ★ 0.00 ratingsWeatherFreeData updated 2026-09-10
  6. Aquarium Keeper app icon

    Aquarium Keeper

    ASIM BAYKAN

    Track tank conditions and livestock

    Manage marine and freshwater tanks with detailed database info on corals, fish, and invertebrates. Track livestock and expenses. Log water parameters and test results graphically. Add custom test parameters. Take notes for tank maintenance.

    ★ 4.318 ratingsUtilitiesFreeData updated 2026-09-06
  7. Calculator for Contractors app icon

    Calculator for Contractors

    Flicent Inc

    Calculate square footage and convert measurements

    ContractorCalculator helps users perform on-the-go calculations for square footage, measurement conversions, and fraction math. It supports trade-specific tasks like amps to watts and wire size.

    ★ 4.215 ratingsBusinessFreeData updated 2026-09-16
  8. Pool Smart app icon

    Pool Smart

    BetterWay Apps LLC

    Pool maintenance made simple and affordable.

    The app teaches users about water balance for pool maintenance. It calculates chemical amounts based on pool size and construction, helping users save money on chemicals.

    ★ 4.513 ratingsProductivity$1.99Data updated 2026-10-18
  9. Farmdeck app icon

    Farmdeck

    OUTCOMEX PTY LTD

    Monitor crop data and control equipment remotely

    Monitor water and rainfall levels, track livestock and electric fences, and manage vehicle and machinery inventory. View surveillance footage and farm maps. Access analytics for farm data. Control and monitor remote sensors and network devices.

    ★ 5.01 ratingsBusinessFreeData updated 2026-09-25
  10. Surat Municipal Corporation app icon

    Surat Municipal Corporation

    Surat Municipal Corporation

    Service delivery and information sharing app.

    The app provides access to property tax, profession tax, and water meter connection details. Users can also check birth, death, and establishment registration certificates, register complaints, and share feedback.

    ★ 3.07 ratingsUtilitiesFreeData updated 2026-10-24
  11. TexasET app icon

    TexasET

    Matrix Software, Inc.

    ★ 3.02 ratingsUtilitiesFreeData updated 2026-09-06
  12. Rheem Calcu Save app icon

    Rheem Calcu Save

    Copeland LP

    Calculate savings by comparing HVAC options

    Contractors use the to calculate cost savings for homeowners by comparing HVAC replacement options. Input parameters to generate accurate graphical reports. Access product data from the Emerson OPI database. Export and share detailed reports.

    ★ 4.344 ratingsUtilitiesFreeData updated 2026-09-11

How we rank alternatives

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