Comparison

Scale Switch vs Metric Conversions Premium

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

Head to head
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!

About

Metric Conversions Premium

This utility app offers a comprehensive suite of unit and currency conversions with a clean interface. It works offline and provides precise results, breaking down complex units into smaller components for detailed analysis. Users can save frequent conversions for quick access.

Highlights
  • No ads or data tracking
  • Offline functionality
  • Over 30,000 unit conversions
  • 130+ currencies with hourly updates
  • Save favorite conversions
  • Precise results up to 5 decimal places
  • Detailed unit breakdowns
Features
Read full description

Premium version of the unit converter app from the most popular metric conversions website in the world, metric-conversions.org. Over a billion visitors have used our website, try our app and see why we're so popular! FEATURES: No advertisements, tracking or any of your user data used Easy to use clear interface Works offline All popular unit conversions (over 30,000 of them) Over 130 currencies (including Bitcoin) with exchange rates updated every hour Store your favorite conversions for quick access Answers in fractions where needed. Obtain conversion results with up to 5 decimal places Imperial units split into other imperial units – so you can get a weight in stones and pounds, pounds and ounces, etc. Lengths break down into feet and inches, etc. WEIGHT: Kilograms, Pounds, Stones, Ounces, Grams, Carats, Grains, Hundredweights, Microgram, Milligrams, Ounces, Pennyweights, Tons, Troy pounds, Troy ounces TEMPERATURE: Celsius, Fahrenheit, Kelvin, Rankine, Newton, Réaumur, Rømer, Delisle. LENGTH: Miles, Yards, Feet, Inches, Kilometers, Meters, Centimeters, Chains, Decimeters, Furlongs, Leagues, Lightyears, Microinches, Microns, Millimeters, Parsecs, Nautical Leagues, Nautical Miles. AREA: Square Miles, Acres, Square Yards, Square Feet, Square Inches, Square Kilometers, Hectares, Square Meters, Square Centimeters, Square Millimeters, Square Microns, Square Microinches. VOLUME: Cups, Tablespoons, Teaspoons, Gallons, Pints, Gills, Ounces , Cubic Meters, Liters, Centiliters, Milliliters, Cubic Yards, Barrels, Quarts, Gills. SPEED: Miles per hour, Kilometers per hour, Meters per second, Knots, Mach, Light speed and more. TIME: Seconds, Minutes, Hours, Days. ANGLE: Degrees, Radians, Minutes (Angular), Seconds (Angular), Centrad, Gradians, Milliradians, Sign PRESSURE: Atmospheres, Bar, Pascals, Pound Force per Square Inch, Inches of Mercury, Inches of Water, Kilogram Force per Square Meter, Millibar, Millimeters of Mercury, Millimeters of Water, Newtons per Meter Squared, Pounds per Square Foot, Torrs CURRENCY: All state sponsored world currencies as well as Bitcoin. If you need anything added, email us at appcontact@metric-conversions.org and we'll do our best to put them in for you!

Screenshots

Scale Switch4 screens
Metric Conversions Premium4 screens

Verdict

The call

The clearest difference is price: Scale Switch at Free against Metric Conversions Premium's $4.99. Scale Switch also leads on rating (5.0 vs 3.0). Metric Conversions Premium's advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (15.1 vs 18.1). On ratings volume, ads, in-app purchases and device support 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

Scale Switch is free to download; Metric Conversions Premium costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Scale Switch holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Scale Switch ships an update every 4 months, Metric Conversions Premium every 2 months. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
Scale Switch versus Metric Conversions Premium: the parameters behind the verdict, then further details
ParameterScale SwitchMetric Conversions Premium
PriceFree — better$4.99
Rating5.0 (1 ratings) — better3.0 (2 ratings)
Positive reviews—66.7% of reviews
Number of ratings12 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.115.1 — better
Further details — not scored
Size2 MB26 MB
Age rating4+4+
DeveloperAlberto PurpuraWight Hat

In-app purchases

None

Scale Switch

No in-app purchases

None

Metric Conversions Premium

No in-app purchases

Questions

Is Scale Switch free?
Scale Switch is free to download, with no in-app purchases.
Is Metric Conversions Premium free?
Metric Conversions Premium costs $4.99, with no in-app purchases.
Which has better reviews, Scale Switch or Metric Conversions Premium?
Scale Switch is rated higher. Scale Switch averages 5.0 out of 5 from 1 ratings, while Metric Conversions Premium averages 3.0 from 2 ratings.
Do Scale Switch or Metric Conversions Premium have ads?
Neither Scale Switch nor Metric Conversions Premium shows ads.
Which is updated more often, Scale Switch or Metric Conversions Premium?
Scale Switch ships an update every 4 months, and Metric Conversions Premium every 2 months. Most recently, Scale Switch was updated on October 30, 2026 and Metric Conversions Premium on November 4, 2026.

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