Comparison

Mec Eng Tools vs SPK

Price, ratings, monetisation and update history for both apps, side by side โ€” 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: โ€ข Steam Tables: water and steam properties, thermodynamic states, records and diagrams. โ€ข Heat & Mass Transfer: conduction, convection, radiation, phase change, heat exchangers and mass transfer. โ€ข Steam Turbines: performance, extractions, energy balances and expansion diagrams. โ€ข Fluid Mechanics: properties, flows, pressure losses and hydraulic machinery. โ€ข Pipe Tools: dimensions, schedules and piping calculations. โ€ข Machine Design: tools for analyzing mechanical components. โ€ข Stress & Strain: models for exploring structural element behavior. โ€ข 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

SPK

Features
Read full description

SPK-SugarBeeSPK-SugarBeet is an application designed to assist sugar technologists in optimizing the operational parameters of the beet sugar extraction process. It includes: - For the diffusion stage: the calculation of diffusion losses, microbiological losses, and draft. - For the purification stage: the calculation of lime requirements, juice purification efficiency, and purification losses. - For the evaporation stage: the calculation of water evaporation, thick juice yield, and color formation during evaporation. - For the crystallization stage: the calculation of the characteristics of massecuite, characteristics of mother liquor, and supersaturation coefficient of the technical sugar solution. - Sugar balance calculation based on sugar beet quality and sugar factory performance.

Screenshots

Mec Eng Tools4 screens
SPK4 screens

Verdict

The call

The clearest difference is in-app purchases: SPK at none against Mec Eng Tools's 10. SPK also leads on update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement 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

Both are free to download. Mec Eng Tools sells 10 one-off in-app purchases. SPK asks for nothing beyond the download.

UpkeepUpdate frequency

Mec Eng Tools ships an update every 2 months, SPK fortnightly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard2 real differences ยท 6 level
Mec Eng Tools versus SPK: the parameters behind the verdict, then further details
ParameterMec Eng ToolsSPK
PriceFreeFree
Positive reviews21.1% of reviewsโ€”
Update frequencyEvery 2 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationFree with in-app purchasesโ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.114.0.0 โ€” better
Further details โ€” not scored
Size41 MB30 MB
Age rating4+4+
DeveloperEduardo AlmeidaREDOUANE ABDELOUARIT

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
None

SPK

No in-app purchases

Questions

Is Mec Eng Tools free?
Mec Eng Tools is free to download, with in-app purchases available.
Is SPK free?
SPK is free to download, with no in-app purchases.
Do Mec Eng Tools or SPK have ads?
Neither Mec Eng Tools nor SPK shows ads.
Which is updated more often, Mec Eng Tools or SPK?
Mec Eng Tools ships an update every 2 months, and SPK fortnightly. Most recently, Mec Eng Tools was updated on November 6, 2026 and SPK on October 30, 2026.

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