Comparison

Unit Converter vs Length Mass Speed Converter

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

Head to head
About

Unit Converter

This application offers a professional and user-friendly interface for converting between various units. It supports over 300 units across more than 20 categories, including currency, temperature, and length.

Highlights
  • Impressive design
  • Convenient interface
  • Easy to use
  • Over 20 categories
  • More than 300 units
  • Currency conversion
  • Temperature conversion
Features
Read full description

CONVERTER - Unit Converter PROPERTIES - Impressive design and convenient interface - Easy to use Professional application - More than 20 categories more than 300 units CATEGORIES - CURRENCY - AREA - TEMPERATURE - LENGTH - MASS - VOLUME - TIME - VELOCITY - ACCELERATION - ANGLE - BYTE - ENERGY - CURRENT - POWER - FORCE - PRESSURE - TORQUE - MAGNITUDE - ILLUMINATION - INDUCTANCE - RADIATION Developed By Yunus Kılınç http://www.yunuskilinc.com yunus.kilinc@gmail.com

About

Length Mass Speed Converter

Easily convert between various units of measurement across 15 categories, including length, mass, volume, speed, and temperature. Offers a premium subscription for advanced features and an ad-free experience.

Highlights
  • Distance/length conversions
  • Area conversions
  • Volume conversions
  • Mass conversions
  • Speed conversions
  • Temperature conversions
  • 15 measurement categories
Features
Read full description

A measurements converter including these units conversions : - Distance/length (mm Millimeters, cm Centimeters, m Meters, km Kilometers, in Inches, ft Feet, yd Yards, mi Miles) - Area (mm^2 Millimeter Square, cm^2 Centimeter Square, m^2 Meter Square, in^2 Inch Square,ft^2 Foot Square, yd^2 Yard Square) - Volume (cm^3 Centimeter cube, m^3 Meter cube, ltr Liter, in^3 Inch cube, ft^3 Foot cube, US gal US gallons, Imp.gal Imperial gallons, US brl US barrel oil) - Mass (g Grams, kg Kilograms, tonne Metric tonnes, shton Short ton, Lton Long ton, lb Pounds, oz Ounces) - Density (g/ml Gram Per milliliter, kg/m^3 Kilogram Per meter cube, lb/ft^3 Pound Per foot cube, lb/in^3 Pound Per inch cube) - Volumetric Liquid Flow Units (L/sec Liter Per second, L/min Liter Per minute, M^3/hr Meter cube Per hour, ft^3/min Foot cube Per minute, ft^3/hr Foot cube Per hour, gal/min US gallons Per minute, US brl/d US barrels oil Per day) - Volumetric Gas Flow Units (Nm^3/hr Normal meter cube Per hr, scfh Standard cubic ft Per hr, scfm Standard cubic ft Per min) - Mass Flow (kg/h Kilogram Per hour, lb/hour Pound Per hour, kg/s Kilogram Per second, t/h Ton Per hour) - High Pressure (bar Bar, psi Pound Per square inch, kPa Kilopascal, MPa Megapascal, kgf/cm^2 KG force Per CM square, mm Hg Millimeter of mercury, atm Atmospheres) - Low Pressure Units (mH 2O Meter of water, ftH 2O Foot of water, cmHg Centimeter of mercury, inHg Inches of mercury, inH 2O Inches of water, Pa Pascal) - Speed (m/s Meter Per second, m/min Meter Per minute, km/h Kilometer Per hour, ft/s Foot Per second, ft/min Foot Per minute, mi/h Miles Per hour) - Torque (Nm Newton meter, kgfm Kilogram force meter, ftlb Foot pound, inlb Inch pound) - Dynamic Viscosity (cp Centipoise, poise Poise, lb/(ft·s) Pound Per foot·second) - Kinematic Viscosity (cs Centistoke, St Stoke, ft^2/s Foot square Per second, m^2/s meter square Per second) - Temperature (Degree Celsius, Degree Fahrenheit, Kelvin) Converter Premium is a monthly recurring subscription. You will automatically be billed the amount (US$14.99) through the App Store at the end of the free trial period which is 7 days. The monthly subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Any unused portion of the free trial period will be forfeited. You can manage your subscription in the App Store. Terms of use: https://ar-code.co/apps/converter/terms.html Privacy policy: https://ar-code.co/apps/converter/privacy.html

Screenshots

Unit Converter3 screens
Length Mass Speed Converter3 screens

Verdict

The call

The clearest difference is rating: Length Mass Speed Converter at 4.6 against Unit Converter's 2.0. Length Mass Speed Converter also leads on update cadence (every 4 months vs every 9 months). Unit Converter's advantage is in-app purchases (none vs 1). On price, review sentiment, ratings volume and ads 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. Length Mass Speed Converter sells 1 in-app purchase, starting at $14.99 per month. Unit Converter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Length Mass Speed Converter holds the better App Store score, 4.6 against 2.0. Both are backed by a comparable volume of ratings — 7 and 14 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

UpkeepUpdate frequency

Unit Converter ships an update every 9 months, Length Mass Speed Converter every 4 months. Both last shipped on November 2, 2026.

Scorecard4 real differences · 6 level
Unit Converter versus Length Mass Speed Converter: the parameters behind the verdict, then further details
ParameterUnit ConverterLength Mass Speed Converter
PriceFreeFree
Rating2.0 (7 ratings)4.6 (14 ratings) — better
Positive reviews50.0% of reviews50.0% of reviews
Number of ratings714 — better
Update frequencyEvery 9 monthsEvery 4 months — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size33 MB7 MB
Age rating4+4+
DeveloperYunus KilincAR Code Pte. Ltd.

Customer experience

Unit Converter

All ratings7 ratings
Positive28.6%
Neutral0.0%
Negative71.4%
Written reviews14 reviews
Positive50.0%
Neutral7.1%
Negative42.9%

Length Mass Speed Converter

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Unit Converter

No in-app purchases

1 purchases

Length Mass Speed Converter

Subscriptions1
  • Converter Premium7 Days trial$14.991 Month

Questions

Is Unit Converter free?
Unit Converter is free to download, with no in-app purchases.
Is Length Mass Speed Converter free?
Length Mass Speed Converter is free to download, with in-app purchases available.
Which has better reviews, Unit Converter or Length Mass Speed Converter?
Length Mass Speed Converter is rated higher. Unit Converter averages 2.0 out of 5 from 7 ratings, while Length Mass Speed Converter averages 4.6 from 14 ratings.
Do Unit Converter or Length Mass Speed Converter have ads?
Both Unit Converter and Length Mass Speed Converter show ads.
Which is updated more often, Unit Converter or Length Mass Speed Converter?
Unit Converter ships an update every 9 months, and Length Mass Speed Converter every 4 months. Most recently, Unit Converter was updated on November 2, 2026 and Length Mass Speed Converter on November 2, 2026.

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