Ratio Calc! app icon

Apps Like Ratio Calc! for iPhone and iPad

Radio control car ratio calculator tool.

The app calculates final drive ratio and rollout for radio control cars. Users can select cars by manufacturer and model, inputting pinion and spur gear sizes.

by David Mills★ 4.525 ratingsSports$2.99Data updated 2026-09-19

Ratio Calc! screenshots

Ranked alternatives

Showing 201–220 of 1,000 ranked alternatives.

  1. Wroom - Engine Sounds app icon

    Wroom - Engine Sounds

    Firesoft Oy

    Sound your ride with real noise

    Create realistic for bikes, e-scooters, or cars using GPS and accelerometer data. Adjust sound based on speed and pedaling. Simulate gear shifts for enhanced realism. Share custom sound profiles.

    ★ 4.216 ratingsEntertainmentFreeData updated 2026-09-06
  1. Gear Ratio Calculator 2 app icon

    Gear Ratio Calculator 2

    ABT Co Ltd

    Calculate ratios and visualize speed-cadence graphs

    Calculate ratios for bicycles with external gearboxes. Input chainwheel, sprocket, and tire sizes to generate speed-cadence and graphs. Simulate optimal ratios by toggling display settings for outer and inner gears.

    ★ 1.01 ratingsSportsFreeData updated 2026-09-06
  2. Ratio Calculator Tool app icon

    Ratio Calculator Tool

    Kubilay Erdogan

    Calculate proportions directly or inversely

    Calculate proportions using direct and inverse methods. Input known values to find unknowns in equations like "If X Foo equals Y bla, then Z Foo equals [?] bla". Solve for price, quantity, or other proportional relationships.

    ★ 3.213 ratingsUtilitiesFreeData updated 2026-09-09
  3. GFGCAM app icon

    GFGCAM

    Shenzhen City, Zhi Yang Software Co., Ltd.

    ★ 3.950 ratingsUtilitiesFreeData updated 2026-09-06
  4. Dew Point Calc app icon

    Dew Point Calc

    Alfred L Poy

    Calculate humidity or dew point easily.

    The app calculates relative humidity or dew point based on air temperature. Users can determine the dry bulb temperature, relative humidity percentage, or dew point temperature by inputting two known values.

    ★ 3.515 ratingsWeatherFreeData updated 2026-09-22
  5. Sports Car Engines app icon

    Sports Car Engines

    ARE Apps Ltd

    Roaring sounds of powerful sports cars.

    The app provides engine sounds from over 190 sports cars across 35 manufacturers. Users can experience the sounds of vehicles from brands like Ferrari, Porsche, and Lamborghini.

    ★ 4.67 ratingsSports$0.99Data updated 2026-09-16
  6. OCR Buddy app icon

    OCR Buddy

    Russ Blatt

    Track races, plan events, manage calendar

    Helps users manage their obstacle course racing calendar. It lists events from international brands to local races. Users can plan their schedule, access event details, and link directly to any race they want to join.

    ★ 4.936 ratingsSportsFreeData updated 2026-09-11
  7. iGearbox app icon

    iGearbox

    Motionics, LLC

    Calculate gearbox ratios interactively and dynamically.

    The app provides tools for calculating gearbox ratios. Users can design gear trains using drag and drop or explore planetary gear sets with interactive animations and ratio calculations.

    ★ 3.06 ratingsEducation$4.99Data updated 2026-09-21
  8. 555 Calc app icon

    555 Calc

    HIDEKAZU JIBIKI

    Calculate timer IC 555 resistors

    The app calculates resistor values for circuit design using the Timer IC 555. Users input frequency, duty ratio, and C1 value, then touch calculate to see resistor values.

    ★ 4.03 ratingsUtilitiesFreeData updated 2026-11-01

How we rank alternatives

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