Comparison

Viscosity Conversion vs Assalub Oil Viscosity App

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

Head to head
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.

About

Assalub Oil Viscosity App

Features
Read full description

This application give you the viscosity for an oil at the temperature you choose. This calculation is based on ASTM D341. You need the viscosity for the oil at 40 °C (104 °F) and 100 °C (212 °F). Then you give the temperature for which you want the viscosity calculated and the app will show it. The Oil Viscosity App generates the result instantly, without having to use the viscosity/temperature diagram which is the usual way of calculating the viscosity at a certain temperature. For example, if you have a gear box where the oil temperature is 85 °C. The oil must have a minimum viscosity of 50 cSt for this type of gear box. Now you want to know if your oil is suitable. You check the data sheet for your oil, and find out that the viscosity at 40 °C is 320 cSt and the viscosity at 100 °C is 37 cSt. You put in the numbers in the App and easily get the result: 56.5 cSt at 85 °C. Assalub AB is a Swedish company manufacturing equipment for industrial lubrication systems. www.assalub.se

Screenshots

Viscosity Conversion4 screens
Assalub Oil Viscosity App4 screens

Verdict

The call

The clearest difference is iOS requirement: Viscosity Conversion at 13 against Assalub Oil Viscosity App's 15.1. On price, update cadence, ads and in-app purchases 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

Viscosity Conversion costs $2.99 and Assalub Oil Viscosity App $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Viscosity Conversion ships an update every 30 months, Assalub Oil Viscosity App every 17 months. The most recent releases landed on October 29, 2026 and October 11, 2026 respectively.

Scorecard1 real difference · 5 level
Viscosity Conversion versus Assalub Oil Viscosity App: the parameters behind the verdict, then further details
ParameterViscosity ConversionAssalub Oil Viscosity App
Price$2.99$2.99
Update frequencyEvery 30 monthsEvery 17 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13 — better15.1
Further details — not scored
Size1 MB31 MB
Age rating4+4+
DeveloperNitrioAssalub AB

In-app purchases

None

Viscosity Conversion

No in-app purchases

None

Assalub Oil Viscosity App

No in-app purchases

Questions

Is Viscosity Conversion free?
Viscosity Conversion costs $2.99, with no in-app purchases.
Is Assalub Oil Viscosity App free?
Assalub Oil Viscosity App costs $2.99, with no in-app purchases.
Do Viscosity Conversion or Assalub Oil Viscosity App have ads?
Neither Viscosity Conversion nor Assalub Oil Viscosity App shows ads.
Which is updated more often, Viscosity Conversion or Assalub Oil Viscosity App?
Viscosity Conversion ships an update every 30 months, and Assalub Oil Viscosity App every 17 months. Most recently, Viscosity Conversion was updated on October 29, 2026 and Assalub Oil Viscosity App on October 11, 2026.

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