Comparison

UnitConverter byNSDev vs Unit Converter and Calculator.

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

Head to head
About

UnitConverter byNSDev

This tool converts between 26 different types of units, displaying conversion rates and allowing you to specify decimal places. It supports a vast array of units across categories like length, mass, volume, and more.

Highlights
  • Converts 26 types of units
  • Displays conversion rates
  • Customizable decimal places
  • Supports numerous units in various categories
  • User-submitted unit requests
Features
Read full description

Tool to convert each of 26 types of units. When you select a unit of value that you enter, you create a table to calculate all the other units. It also displays the conversion rate. You can also specify the number of decimal places. 23 units in Length 18 units in Area 31 units in Volume 15 units in Mass 5 units in Angle 4 units in Temperature 7 units in Time 3 units in Frequency 5 units in Force 17 units in Pressure 6 units in Energy 6 units in Power rate 13 units in Speed 14 units in Acceleration 2 units in Dynamic viscosity 4 units in Kinematic viscosity 3 units in Magnetic flux density 2 units in Magnetic flux 7 units in Luminance 4 units in Illuminance 3 units in Radiation - source activity 2 units in Radiation - absorbed dose 2 units in Radiation - equivalent dose 2 units in Radiation - exposure 7 units in Infomation 7 units in Resolution Because we want to support units around the world, We will wait for the name and unit conversion information. Please enter your review.

About

Unit Converter and Calculator.

Effortlessly convert between over 1450 units across more than 70 categories with this intuitive and fast mobile application. It offers real-time conversions, offline access, and customizable settings for students, professionals, and travelers.

Highlights
  • Real-time conversions
  • Offline access
  • Over 70 categories
  • More than 1450 units
  • Customizable settings
  • Dark mode support
  • Favorite units list
Features
Read full description

Introducing the ultimate Unit Conversion mobile application designed to simplify your everyday calculations. With an intuitive interface and fast performance, our app makes converting units effortless. Whether you’re dealing with tons of categories, this app supports a wide range of categories and units. It has more than 70 categories and more than 1450 units. Features include: - Real-time conversions with accurate results. - User-friendly design for seamless navigation. - Customizable settings tailored to your preferences. - Offline access for all of them. - Quick access to your last used categories. - Append your favorite list of most useful units. - Dark mode support. - Small app sizes. Perfect for students, professionals, travelers, and anyone needing quick and reliable unit conversions. Make your calculations more efficient. Download Now! List of our categories; == Basic Units == - Length - Temperature - Area - Volume - Weight and Mass - Time == Engineering Units == - Pressure - Energy - Power - Force - Speed - Angle - Fuel Consumption - Data Storage - Volume - Dry - Velocity - Angular - Acceleration - Acceleration - Angular - Density - Specific Volume - Moment of Inertia - Moment of Force - Torque == Heat Units == - Fuel Efficiency - Mass - Fuel Efficiency - Volume - Temperature Interval - Thermal Expansion - Thermal Resistance - Thermal Conductivity - Specific Heat Capacity - Heat Density - Heat Flux Density - Heat Transfer Coefficient == Fluid Units == - Flow - Flow - Mass - Flow - Molar - Mass Flux Density - Concentration - Molar - Concentration - Solution - Viscosity - Dynamic - Viscosity - Kinematic - Surface Tension - Permeability == Light Units == - Luminance - Luminous Intensity - Illumination - Digital Image Resolution - Wavelength == Electricity Units == - Charge - Linear Charge Density - Surface Charge Density - Volume Charge Density - Current - Linear Current Density - Surface Current Density - Electric Field Strength - Electric Potential - Electric Resistance - Electric Resistivity - Electric Conductance - Electric Conductivity - Electrostatic Capacitance - Inductance == Magnetism Units == - Magnetomotive Force - Magnetic Field Strength - Magnetic Flux - Magnetic Flux Density == Radiology Units == - Radiation - Radiation - Activity - Radiation - Exposure - Radiation - Absorbed Dose If you have any questions, please do not hesitate to contact us, support@kemalbakacak.com

Screenshots

UnitConverter byNSDev3 screens
Unit Converter and Calculator.4 screens

Verdict

The call

The clearest difference is in-app purchases: UnitConverter byNSDev at none against Unit Converter and Calculator.'s 1. UnitConverter byNSDev also leads on ads (none vs shown). Unit Converter and Calculator.'s advantage is update cadence (monthly vs every 5 months) and review sentiment (28% vs 20%). On price, 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. Unit Converter and Calculator. sells 1 one-off in-app purchase. UnitConverter byNSDev asks for nothing beyond the download.

UpkeepUpdate frequency

UnitConverter byNSDev ships an update every 5 months, Unit Converter and Calculator. monthly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard5 real differences · 5 level
UnitConverter byNSDev versus Unit Converter and Calculator.: the parameters behind the verdict, then further details
ParameterUnitConverter byNSDevUnit Converter and Calculator.
PriceFreeFree
Rating—4.3 (84 ratings) — better
Positive reviews20.0% of reviews28.0% of reviews — better
Number of ratings—84 — better
Update frequencyEvery 5 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size4 MB20 MB
Age rating4+4+
DeveloperNIHON SYSTEM DEVELOPER CORPORATIONKemal Bakacak

Customer experience

UnitConverter byNSDev

Written reviews20 reviews
Positive20.0%
Neutral35.0%
Negative45.0%

Unit Converter and Calculator.

All ratings84 ratings
Positive78.6%
Neutral8.3%
Negative13.1%
Written reviews25 reviews
Positive28.0%
Neutral8.0%
Negative64.0%

In-app purchases

None

UnitConverter byNSDev

No in-app purchases

1 purchases

Unit Converter and Calculator.

One-time1
  • Premium, All Calculation Units$2.99

Questions

Is UnitConverter byNSDev free?
UnitConverter byNSDev is free to download, with no in-app purchases.
Is Unit Converter and Calculator. free?
Unit Converter and Calculator. is free to download, with in-app purchases available.
Do UnitConverter byNSDev or Unit Converter and Calculator. have ads?
Unit Converter and Calculator. shows ads; UnitConverter byNSDev does not.
Which is updated more often, UnitConverter byNSDev or Unit Converter and Calculator.?
UnitConverter byNSDev ships an update every 5 months, and Unit Converter and Calculator. monthly. Most recently, UnitConverter byNSDev was updated on November 2, 2026 and Unit Converter and Calculator. on November 7, 2026.

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