Comparison

Conversion Calculator vs Scale Switch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Conversion Calculator

This utility app offers a comprehensive unit conversion tool for various needs, including cooking, travel, and work. It supports over 120 units across 15 categories, with metric and imperial options. The app works offline and allows for customization of displayed decimals and category order.

Highlights
  • 15 categories and 120+ units
  • Metric and imperial conversions
  • Cooking, weight, length, temperature, and more
  • Offline functionality
  • Customizable decimal display
  • Apple Watch app
Features
Read full description

Convert cooking measurements, kg to lbs, feet to meters, Celsius to Fahrenheit and psi to bar in a tap. Conversion Calculator is a fast, clean unit converter for the kitchen, travel, the gym, school and work. COOKING & KITCHEN • Cups, tablespoons, teaspoons, fluid ounces, pints, quarts and gallons • US and imperial (UK) cups, pints and gallons kept separate, so recipes come out right • Grams, ounces and pounds for baking WEIGHT & BODY • kg to lbs, stones, ounces, grams and milligrams LENGTH, AREA & LAND • Feet, inches, meters, cm, miles, km, yards and nautical miles • Square feet, square meters, acres and hectares TEMPERATURE, SPEED & MORE • Celsius, Fahrenheit and Kelvin • km/h, mph, knots and m/s • Energy: calories, kcal, joules and kWh • Data: bytes, KB, MB, GB and TB • Time: seconds to hours PRESSURE, FUEL, POWER & MORE • Pressure: psi, bar, kPa, atm, mmHg and inHg • Fuel economy: mpg (US and UK), L/100 km and km/L • Power: horsepower (hp), kW and watts • Torque: N·m, lbf·ft and kgf·m • Force: newtons, lbf and kgf • Angle: degrees, radians and gradians MADE FOR EVERYDAY USE • 15 categories and 120+ units, metric and imperial • Swap units in one tap and copy the result • Reorder categories so the ones you use are on top, or hide the rest with Pro • Choose how many decimals to show • Apple Watch app for conversions on your wrist • Works offline Converting is free. Pro is an optional one-time purchase.

About

Scale Switch

This utility app simplifies unit conversions with an intuitive interface. Easily convert between various units for time, data, temperature, area, volume, and more. It's designed for quick, reliable conversions on the go.

Highlights
  • Easy-to-use interface for conversions
  • Wide range of supported units
  • Converts time, data, temperature, area, volume, and more
  • Intuitive and clutter-free design
  • Quick and reliable results
  • Supports various measurement systems
Features
Read full description

Simplify your life with our all-in-one unit conversion app. Whether you're cooking, planning a trip, or working on a project, this app makes conversions seamless and intuitive. Key Features: Easy-to-Use Interface: Just type a numeric value followed by its original unit and the target unit. Example: "1.5h to min" converts hours to minutes. "20 C to F" converts Celsius to Fahrenheit. "1 sqft to sqm" converts square feet to square meters. Wide Range of Supported Units: Time: Seconds, minutes, hours, days, weeks. Digital Data: Bits, bytes, kilobytes, megabytes, gigabytes, and more. Temperature: Celsius, Fahrenheit, Kelvin. Area: Square meters, square feet, acres, hectares, and more. Volume: Milliliters, liters, US and Imperial measurements. Fuel Efficiency: Kilometers per liter, miles per gallon, liters per 100km. Length: Millimeters, centimeters, inches, feet, yards, miles, and more. Mass: Grams, kilograms, ounces, pounds, tons, and more. Power: Watts, kilowatts, horsepower, BTU/h. Intuitive Design: Quickly find what you need with a clean, user-friendly layout. Why Choose This App? No complex menus or unnecessary clutter—just type, convert, and get your answer. Perfect for professionals, students, and anyone needing quick, reliable conversions on the go. Download now and convert like a pro!

Screenshots

Conversion Calculator4 screens
Scale Switch4 screens

Verdict

The call

The clearest difference is in-app purchases: Scale Switch at none against Conversion Calculator's 1. Scale Switch also leads on rating (5.0 vs 4.8). Conversion Calculator's advantage is ratings volume (165 vs 1) and update cadence (every 5 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Conversion Calculator sells 1 one-off in-app purchase. Scale Switch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Scale Switch holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Conversion Calculator has 165 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Conversion Calculator ships an update every 5 weeks, Scale Switch every 4 months. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Conversion Calculator versus Scale Switch: the parameters behind the verdict, then further details
ParameterConversion CalculatorScale Switch
PriceFreeFree
Rating4.8 (165 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings165 — better1
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.0 — better18.1
Further details — not scored
Size10 MB2 MB
Age rating4+4+
DeveloperCollins CheruiyotAlberto Purpura

In-app purchases

1 purchases

Conversion Calculator

One-time1
  • Unlimited access forever$8.99
None

Scale Switch

No in-app purchases

Questions

Is Conversion Calculator free?
Conversion Calculator is free to download, with in-app purchases available.
Is Scale Switch free?
Scale Switch is free to download, with no in-app purchases.
Which has better reviews, Conversion Calculator or Scale Switch?
Scale Switch is rated higher. Conversion Calculator averages 4.8 out of 5 from 165 ratings, while Scale Switch averages 5.0 from 1 ratings.
Do Conversion Calculator or Scale Switch have ads?
Neither Conversion Calculator nor Scale Switch shows ads.
Which is updated more often, Conversion Calculator or Scale Switch?
Conversion Calculator ships an update every 5 weeks, and Scale Switch every 4 months. Most recently, Conversion Calculator was updated on November 12, 2026 and Scale Switch on October 30, 2026.

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