Comparison

Unit Converter vs Conversion Calculator

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

Head to head
About

Unit Converter

Features
Read full description

Introducing Unit Converter - the ultimate tool for hassle-free unit conversions on your mobile device! Whether you're a student, professional, or simply someone who frequently needs to convert units, this app is designed to make your life easier. With a sleek and intuitive interface, Unit Converter offers a wide range of conversion options covering various categories, including length, weight, volume, temperature, time, speed, and more. No more searching through numerous websites or fumbling with complex formulas - this app puts all the conversion power in the palm of your hand. You can also bookmark/save or share the conversions.

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.

Screenshots

Unit Converter4 screens
Conversion Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Unit Converter at none against Conversion Calculator's 1. Unit Converter also leads on iOS requirement (14.0 vs 17.0). Conversion Calculator's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 8 months). On price 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

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

UpkeepUpdate frequency

Unit Converter ships an update every 8 months, Conversion Calculator every 5 weeks. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
Unit Converter versus Conversion Calculator: the parameters behind the verdict, then further details
ParameterUnit ConverterConversion Calculator
PriceFreeFree
Rating—4.8 (165 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—165 — better
Update frequencyEvery 8 monthsEvery 5 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS14.0 — better17.0
Further details — not scored
Size6 MB10 MB
Age rating4+4+
DeveloperRAJAMRAGHU TECHCollins Cheruiyot

In-app purchases

None

Unit Converter

No in-app purchases

1 purchases

Conversion Calculator

One-time1
  • Unlimited access forever$8.99

Questions

Is Unit Converter free?
Unit Converter is free to download, with no in-app purchases.
Is Conversion Calculator free?
Conversion Calculator is free to download, with in-app purchases available.
Do Unit Converter or Conversion Calculator have ads?
Unit Converter shows ads; Conversion Calculator does not.
Which is updated more often, Unit Converter or Conversion Calculator?
Unit Converter ships an update every 8 months, and Conversion Calculator every 5 weeks. Most recently, Unit Converter was updated on October 30, 2026 and Conversion Calculator on November 8, 2026.

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