Comparison

Mec Eng Tools 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

Mec Eng Tools

This utility app calculates thermodynamic properties using IAPWS-97 equations. It allows users to determine various properties like pressure, temperature, enthalpy, and specific volume based on different input parameters. The app supports multiple units for calculations.

Highlights
  • IAPWS-97 equation calculations
  • Calculate properties from pressure and temperature
  • Calculate properties from pressure and enthalpy
  • Calculate properties from pressure and entropy
  • Calculate properties from pressure and quality
  • Support for multiple units
Features
Read full description

Steam Tables Lite has evolved into Mec Eng Tools. Your water and steam tools are now part of a mechanical engineering calculation workspace. Explore eight modules organized by discipline: • Steam Tables: water and steam properties, thermodynamic states, records and diagrams. • Heat & Mass Transfer: conduction, convection, radiation, phase change, heat exchangers and mass transfer. • Steam Turbines: performance, extractions, energy balances and expansion diagrams. • Fluid Mechanics: properties, flows, pressure losses and hydraulic machinery. • Pipe Tools: dimensions, schedules and piping calculations. • Machine Design: tools for analyzing mechanical components. • Stress & Strain: models for exploring structural element behavior. • Pressure Vessels: shell and head calculations and checks available in the module. CALCULATE AND UNDERSTAND Choose a model, enter your data and review results with their units. Where applicable, select data from integrated catalogs and tables. Learn through theory, illustrations and worked examples. Save calculations and export reports in tools that support these features. YOUR STEAM TABLES IS STILL HERE The Steam Tables module retains its tools and the option to restore previous purchases. English, Portuguese and Spanish. Light and dark interfaces for iPhone and iPad. Some features require an in-app purchase. Review the included items on the purchase screen before confirming.

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

Mec Eng Tools4 screens
Linear Interpolation Master3 screens

Verdict

The call

The clearest difference is review sentiment: Linear Interpolation Master at 63% against Mec Eng Tools's 21%. Linear Interpolation Master also leads on iOS requirement (11.0 vs 15.1). Mec Eng Tools's advantage is ads (none vs shown). On price, update cadence, in-app purchases and monetization model 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. Mec Eng Tools sells 10 one-off in-app purchases and Linear Interpolation Master sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Mec Eng Tools ships an update every 2 months, Linear Interpolation Master every 5 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 7 level
Mec Eng Tools versus Linear Interpolation Master: the parameters behind the verdict, then further details
ParameterMec Eng ToolsLinear Interpolation Master
PriceFreeFree
Rating—4.7 (186 ratings) — better
Positive reviews21.1% of reviews62.5% of reviews — better
Number of ratings—186 — better
Update frequencyEvery 2 months — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.111.0 — better
Further details — not scored
Size41 MB16 MB
Age rating4+4+
DeveloperEduardo AlmeidaVERVE TECHNOLOGIES PTY. LTD.

Customer experience

Mec Eng Tools

Written reviews19 reviews
Positive21.1%
Neutral15.8%
Negative63.2%

Linear Interpolation Master

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

In-app purchases

10 purchases

Mec Eng Tools

One-time10
  • Upgrade Steam Tables$3.99
  • Stress & Strain$4.99
  • Machine Design$4.99
Show 7 more
  • Pressure Vessels$4.99
  • Fluids & Piping Pack$6.99
  • Thermal Pack: Steam Complement$6.99
  • Thermal Sciences Pack$10.49
  • Solids & Design Pack$10.49
  • Collection: Steam Complement$24.49
  • Complete Engineering Collection$27.99
3 purchases

Linear Interpolation Master

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

Questions

Is Mec Eng Tools free?
Mec Eng Tools is free to download, with in-app purchases available.
Is Linear Interpolation Master free?
Linear Interpolation Master is free to download, with in-app purchases available.
Do Mec Eng Tools or Linear Interpolation Master have ads?
Linear Interpolation Master shows ads; Mec Eng Tools does not.
Which is updated more often, Mec Eng Tools or Linear Interpolation Master?
Mec Eng Tools ships an update every 2 months, and Linear Interpolation Master every 5 months. Most recently, Mec Eng Tools was updated on November 6, 2026 and Linear Interpolation Master on November 2, 2026.

Other comparisons