UnitConverter byNSDev vs Unit Converter All Categories
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
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.
- Converts 26 types of units
- Displays conversion rates
- Customizable decimal places
- Supports numerous units in various categories
- User-submitted unit requests
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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.
Unit Converter All Categories
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Universal Unit Converter is the ultimate all-in-one conversion tool for professionals, students, and everyday users. Whether you're solving homework problems, performing engineering calculations, or managing tasks in the lab or workshop, this app has everything you need in one beautifully organized interface. With over 70 converters spread across 8 specialized categories, this app helps you convert almost anything β from simple length and weight to advanced thermal resistance, magnetism, radiation, and more. Main Categories & Features Common Converters Quickly convert essential everyday values like: Length Weight and Mass Volume Temperature Area Pressure Energy Speed Data Storage Time, Power, Force, and more Engineering Tools Perfect for students and professionals in mechanical or civil engineering: Angular velocity & acceleration Density & specific volume Moment of inertia Torque & force moments Heat and Thermal Systems Handle all thermal analysis needs with: Thermal conductivity Specific heat capacity Thermal resistance Heat transfer coefficient Fuel efficiency (mass & volume) Fluid Dynamics Explore various physical and chemical properties in: Flow rates (volume, mass, molar) Viscosity (dynamic & kinematic) Concentration & permeability Surface tension Light and Optics Calculate optical parameters with: Luminance Illumination Light frequency & wavelength Digital image resolution Electricity Designed for electrical engineers and electronics enthusiasts: Current, voltage, resistance Capacitance & inductance Conductance, conductivity, and resistivity Electric field strength & charge density Magnetism Convert key magnetic quantities: Magnetic field strength Magnetic flux & flux density Magnetomotive force Radiology and Radiation Medical and scientific users can convert: Radiation exposure (Gy, Bq, C/kg) Absorbed dose & activity Why Choose Universal Unit Converter? Clean and intuitive UI with categorized converters Accurate conversion formulas used by professionals Offline mode β No internet needed Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
The clearest difference is in-app purchases: UnitConverter byNSDev at none against Unit Converter All Categories's 3. Unit Converter All Categories's advantage is update cadence (every 5 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Unit Converter All Categories sells 3 in-app purchases, starting at $0.99 per month. UnitConverter byNSDev asks for nothing beyond the download.
UnitConverter byNSDev ships an update every 5 months, Unit Converter All Categories every 5 weeks. The most recent releases landed on October 21, 2026 and October 30, 2026 respectively.
| Parameter | UnitConverter byNSDev | Unit Converter All Categories |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | β |
| Update frequency | Every 5 months | Every 5 weeks β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.6 β better | 16.6 |
| Further details β not scored | ||
| Size | 4 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | NIHON SYSTEM DEVELOPER CORPORATION | Vladislav Zhirnov |
In-app purchases
UnitConverter byNSDev
No in-app purchases
Unit Converter All Categories
- Full version / monthly$0.991 Month
- Full version / year$2.991 Year
- Remove ADS$4.99
Questions
Is UnitConverter byNSDev free?
Is Unit Converter All Categories free?
Do UnitConverter byNSDev or Unit Converter All Categories have ads?
Which is updated more often, UnitConverter byNSDev or Unit Converter All Categories?
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