Comparison

Viscosity Conversion vs TELEDYNE ISCO FlowCalc

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
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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

TELEDYNE ISCO FlowCalc

This utility app provides quick and accurate open channel flow rate calculations for field or office use. Select your measurement method, enter dimensions and head/velocity, and receive instant results. It supports multiple flow methods, area-velocity calculations, and unit switching.

Highlights
  • Instant flow rate calculations
  • Multiple weir and flume types
  • Area-velocity mode for pipes
  • Save favorite site setups
  • Imperial and metric unit support
  • Based on ISCO Handbook formulas
Features
Read full description

Quick, accurate flow rate calculations, right in your pocket. FlowCalc makes open channel flow measurement fast and easy. Whether you’re in the field or the office, you can select your weir, flume, or channel shape, enter size and head/velocity, and get instant, reliable results. Key Features • Set up & calculate in minutes – Choose your measurement method, enter your dimensions, and see flow rates instantly. • Multiple flow methods – Includes popular weirs (V‑Notch, Rectangular, Cipolletti) and flumes (Parshall, Leopold‑Lagco, HS, H, HL, Trapezoidal, and more). • Area‑velocity mode – Calculate flow for partially full pipes and non‑full channels in various shapes. • Save favorites – Store common site setups for fast recall. • Trusted formulas – Based on the ISCO Open Channel Flow Measurement Handbook. • Easy unit switching – Imperial and metric support. Free to download and backed by Teledyne ISCO’s decades of expertise in flow measurement.

Screenshots

Viscosity Conversion4 screens
TELEDYNE ISCO FlowCalc4 screens

Verdict

The call

The clearest difference is price: TELEDYNE ISCO FlowCalc at Free against Viscosity Conversion's $2.99. TELEDYNE ISCO FlowCalc also leads on update cadence (weekly vs every 30 months). Viscosity Conversion's advantage is ads (none vs shown). On in-app purchases, 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

TELEDYNE ISCO FlowCalc is free to download; Viscosity Conversion costs $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, TELEDYNE ISCO FlowCalc weekly. The most recent releases landed on September 23, 2026 and June 8, 2026 respectively.

Scorecard3 real differences · 7 level
Viscosity Conversion versus TELEDYNE ISCO FlowCalc: the parameters behind the verdict, then further details
ParameterViscosity ConversionTELEDYNE ISCO FlowCalc
Price$2.99Free — better
Rating—4.5 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 30 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13 — better13.4
Further details — not scored
Size1 MB26 MB
Age rating4+4+
DeveloperNitrioFutureSight Studios Ltd

In-app purchases

None

Viscosity Conversion

No in-app purchases

None

TELEDYNE ISCO FlowCalc

No in-app purchases

Questions

Is Viscosity Conversion free?
Viscosity Conversion costs $2.99, with no in-app purchases.
Is TELEDYNE ISCO FlowCalc free?
TELEDYNE ISCO FlowCalc is free to download, with no in-app purchases.
Do Viscosity Conversion or TELEDYNE ISCO FlowCalc have ads?
TELEDYNE ISCO FlowCalc shows ads; Viscosity Conversion does not.
Which is updated more often, Viscosity Conversion or TELEDYNE ISCO FlowCalc?
Viscosity Conversion ships an update every 30 months, and TELEDYNE ISCO FlowCalc weekly. Most recently, Viscosity Conversion was updated on September 23, 2026 and TELEDYNE ISCO FlowCalc on June 8, 2026.

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