Comparison

SCR MAXFLO™ vs Linear Interpolation Master

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

Head to head
About

SCR MAXFLO™

This app calculates pressure drop, fluid velocity, Reynold's number, and friction factor for liquids and gases. It allows users to create custom projects, manage pipes, fluids, and fittings, and supports both metric and imperial units for efficient on-site work.

Highlights
  • Pressure drop calculation
  • Fluid velocity calculation
  • Reynold's number calculation
  • Friction factor calculation
  • Custom project creation
  • Pipe, fluid, and fitting management
  • Metric and imperial unit support
Features
Read full description

The SCR MAXFLO™ App calculates pressure drop, fluid velocity, Reynold’s number, and friction factor for both liquid and gas. Other features include the ability to create custom projects as well as the ability to add and edit pipes, fluids, and fittings. Need to work in metric and imperial units? The SCR MAXFLO™ App has you covered. From changing pipe size on the fly to sharing your calculations with other users, the SCR MAXFLO™ App can help you work quickly and efficiently on any job site.

About

Linear Interpolation Master

This tool simplifies linear interpolation calculations for industrial commissioning engineers. It features large, easily readable numbers for field use and allows for quick swapping of coordinate systems, such as converting between 4-20mA and 0-100% scales.

Highlights
  • Large number display for field visibility
  • Quickly swap X and Y coordinates
  • 4-20mA to 0-100% conversion
  • 0-100% to 4-20mA conversion
Features
Read full description

A linear interpolation calculator designed for industrial commissioning engineers. It has the following features: - Displays large numbers for when you are out in the field commissioning. - Allows quickly swapping x and y coordinates; for example from 4-20mA -> 0-100% to 0-100% -> 4-20mA.

Screenshots

SCR MAXFLO™4 screens
Linear Interpolation Master3 screens

Verdict

The call

The clearest difference is in-app purchases: SCR MAXFLO™ at none against Linear Interpolation Master's 3. SCR MAXFLO™ also leads on ads (none vs shown). Linear Interpolation Master's advantage is ratings volume (176 vs 5) and update cadence (every 5 months vs every 11 months). On price and rating 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. Linear Interpolation Master sells 3 one-off in-app purchases. SCR MAXFLO™ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for SCR MAXFLO™ against 4.7 for Linear Interpolation Master. That said, the two scores are not equally well evidenced: Linear Interpolation Master has 176 ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

SCR MAXFLO™ ships an update every 11 months, Linear Interpolation Master every 5 months. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

Scorecard7 real differences · 3 level
SCR MAXFLO™ versus Linear Interpolation Master: the parameters behind the verdict, then further details
ParameterSCR MAXFLO™Linear Interpolation Master
PriceFreeFree
Rating4.6 (5 ratings)4.7 (176 ratings) — better
Positive reviews—62.5% of reviews
Number of ratings5176 — better
Update frequencyEvery 11 monthsEvery 5 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.611.0 — better
Further details — not scored
Size7 MB16 MB
Age rating4+4+
DeveloperSouthwire CompanyVERVE TECHNOLOGIES PTY. LTD.

Customer experience

SCR MAXFLO™

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Linear Interpolation Master

All ratings176 ratings
Positive92.6%
Neutral2.8%
Negative4.5%
Written reviews8 reviews
Positive62.5%
Neutral25.0%
Negative12.5%

In-app purchases

None

SCR MAXFLO™

No in-app purchases

3 purchases

Linear Interpolation Master

One-time3
  • Generous Tip$2.99
  • Massive Tip$3.99
  • Amazing Tip$4.99

Questions

Is SCR MAXFLO™ free?
SCR MAXFLO™ is free to download, with no in-app purchases.
Is Linear Interpolation Master free?
Linear Interpolation Master is free to download, with in-app purchases available.
Which has better reviews, SCR MAXFLO™ or Linear Interpolation Master?
Linear Interpolation Master is rated higher. SCR MAXFLO™ averages 4.6 out of 5 from 5 ratings, while Linear Interpolation Master averages 4.7 from 176 ratings.
Do SCR MAXFLO™ or Linear Interpolation Master have ads?
Linear Interpolation Master shows ads; SCR MAXFLO™ does not.
Which is updated more often, SCR MAXFLO™ or Linear Interpolation Master?
SCR MAXFLO™ ships an update every 11 months, and Linear Interpolation Master every 5 months. Most recently, SCR MAXFLO™ was updated on September 9, 2026 and Linear Interpolation Master on September 22, 2026.

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