Mec Eng Tools vs imOS CRX plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
imOS CRX plus
This app allows you to program and control LED lights on compatible devices via Bluetooth. You can define LED intensities at specific time points, choose gradual or instant transitions, and select from various lighting modes to customize your light settings.
- Bluetooth LED control
- Program light intensities
- Define time points for settings
- Gradual or instant transitions
- Multiple lighting modes
- Customize light settings
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Illumagic imOS CRX plus is a light controlling interface which allows you to program and control the LEDs within the ComboRay series G2 and X series via Bluetooth of your mobile devices. You can define the intensities of LEDs within three channels at various time points that you can also define by yourself. You can let the light settings of two adjacent time points to change gradually or instantly according to your need. There are also various lighting modes to be programmed and selected so you can change the light settings according to your favors.
Screenshots
Verdict
The clearest difference is in-app purchases: imOS CRX plus at none against Mec Eng Tools's 10. Mec Eng Tools's advantage is review sentiment (21% vs 12%). On price, update cadence, ads and device support 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
Both are free to download. Mec Eng Tools sells 10 one-off in-app purchases. imOS CRX plus asks for nothing beyond the download.
Mec Eng Tools ships an update every 2 months, imOS CRX plus every 5 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Mec Eng Tools | imOS CRX plus |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.8 (6 ratings) — better |
| Positive reviews | 21.1% of reviews — better | 11.8% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 41 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Eduardo Almeida | illumagic |
Customer experience
Mec Eng Tools
imOS CRX plus
In-app purchases
Mec Eng Tools
- Upgrade Steam Tables$3.99
- Stress & Strain$4.99
- Machine Design$4.99
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- 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
imOS CRX plus
No in-app purchases
Questions
Is Mec Eng Tools free?
Is imOS CRX plus free?
Do Mec Eng Tools or imOS CRX plus have ads?
Which is updated more often, Mec Eng Tools or imOS CRX plus?
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