Comparison

Simple Units Converter vs Viscosity Conversion

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

Head to head
About

Simple Units Converter

Features
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Simple Units Converter is a general-use units conversion calculator good for anyone interested in converting from one set of units to another. It was developed with ease of use as a primary objective. Has 586 different units and 47 different dimensions: Acceleration (27) Angle (21) Area (31) Change in Temperature (4) Cooking (27) Data Storage (16) Density (16) Electric Charge (8) Electric Current (5) Electric Dipole (3) Electric Potential Difference (3) Electrical Conductivity (14) Energy (40) Enthalpy Mass (4) Enthalpy Molar (4) Enthalpy Normal Volume (2) Enthalpy Volume (4) Flow (Volume) (22) Force (16) Frequency (7) Fuel Consumption (15) Illuminance (5) Length / Distance (30) Luminance (8) Luminous Intensity (4) Magnetic Flux (6) Magnetic Flux Density (4) Molar Energy (7) Molar Heat Capacity (2) Molar Mass (13) Power / Heat Flow Rate (34) Pressure (28) Radiation - Absorbed Dose (8) Radiation - Equivalent Dose (4) Radiation - Exposure (3) Radiation - Source Activity (5) Specific Heat (5) Speed / Velocity (14) Temperature (7) Thermal Conductivity (8) Time (20) Torque (6) Viscosity - Dynamic (9) Viscosity - Kinematic (4) Volume (71) Volume - Dry (6) Weight / Mass (36)

About

Viscosity Conversion

Features
Read full description

Viscosity Conversion - Easily convert between various types of units for Dynamic Viscosity, Kinematic Viscosity, and Dynamic Viscosity for Oil and Water. Viscosity is the state of being thick, sticky, and semi-fluid in consistency, primarily due to internal friction. It is quantified by a measure of the magnitude of internal friction, typically represented as the force per unit area resisting flow between parallel layers at a unit distance apart moving at unit speed relative to each other. Viscosity of a fluid indicates its resistance to gradual deformation under shear stress or tensile stress. In everyday terms, it's akin to the concept of "thickness." For instance, honey exhibits significantly higher viscosity compared to water. Fluid viscosity reflects its resistance to shear or flow and serves as an indicator of its adhesive, cohesive, or frictional properties. This resistance arises due to internal molecular friction within the fluid, resulting in a frictional drag effect. There are two key measures of fluid viscosity: dynamic and kinematic viscosity. Viscosity Types: 1. Dynamic Viscosity - Characteristic of fluids and plastic solids, dynamic viscosity quantifies a substance's resistance to deformation and is informally known as "thickness." 2. Dynamic Viscosity for Oil and Water - Conversion factors for viscosity, encompassing various oils, water, glycerin, and different temperatures. 3. Kinematic Viscosity - Includes units such as Stokes, centistokes, lentor, square meter/second, square foot/second, poise cubic centimeter/gram, and more. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Simple Units Converter4 screens
Viscosity Conversion4 screens

Verdict

The call

The clearest difference is update cadence: Simple Units Converter at every 8 months against Viscosity Conversion's every 30 months. Simple Units Converter also leads on price ($0.99 vs $2.99). Viscosity Conversion's advantage is iOS requirement (13 vs 16.2). On ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Simple Units Converter costs $0.99 and Viscosity Conversion $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Simple Units Converter ships an update every 8 months, Viscosity Conversion every 30 months. The most recent releases landed on August 8, 2026 and October 9, 2026 respectively.

Scorecard3 real differences ยท 3 level
Simple Units Converter versus Viscosity Conversion: the parameters behind the verdict, then further details
ParameterSimple Units ConverterViscosity Conversion
Price$0.99 โ€” better$2.99
Update frequencyEvery 8 months โ€” betterEvery 30 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.213 โ€” better
Further details โ€” not scored
Size9 MB1 MB
Age rating4+4+
DeveloperMind Trends LLCNitrio

In-app purchases

None

Simple Units Converter

No in-app purchases

None

Viscosity Conversion

No in-app purchases

Questions

Is Simple Units Converter free?
Simple Units Converter costs $0.99, with no in-app purchases.
Is Viscosity Conversion free?
Viscosity Conversion costs $2.99, with no in-app purchases.
Do Simple Units Converter or Viscosity Conversion have ads?
Neither Simple Units Converter nor Viscosity Conversion shows ads.
Which is updated more often, Simple Units Converter or Viscosity Conversion?
Simple Units Converter ships an update every 8 months, and Viscosity Conversion every 30 months. Most recently, Simple Units Converter was updated on August 8, 2026 and Viscosity Conversion on October 9, 2026.

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