Thermal Engineering Calc vs WeldOffice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thermal Engineering Calc
This app provides 44 calculators for thermal engineering parameters, along with thermodynamics tables, formulas, and definitions. It's a comprehensive tool for mechanical engineers and students needing to perform various thermal calculations.
- 44 thermal engineering calculators
- Thermodynamics tables
- Formulas and definitions
- Carnot and Rankine efficiency calculators
- Heat transfer calculations
- Temperature conversion
Read full descriptionHide full description
Thermal Engineering Calc. has 44 Calculators related to THERMAL ENGINEERING PARAMETERS along with Thermodynamics Tables - Formulas and Definitions too List of Calculators are : 1.Carnot Efficiency (Carnot Cycle) 2.Eckert Number 3.Emissivity Coefficient 4.Energy Efficiency 5.Energy/Work Converter 6.Enthalpy 7.Entropy 8.Fick's Law of Diffusion 9.Fouling Factor 10.Fourier Number 11.Heat Flow 12.Heat Storage 13.Heat Transfer Rate 14.Kinetic Energy 15.Laws of Thermodynamics 16.Lewis Number 17.Liquid Phase Diffusion Coefficient 18.Nusselt Number 19.Peclet Number 20.Potential Energy 21.Prandtl Number 22.Radiation Constant 23.Radiation Converter 24.Radiation Heat Transfer 25.Rankine Efficiency 26.Sherwood Number 27.Specific Heat Capacity Calculator 28.Specific Heat Capacity Converter 29.Stefan-Boltzmann Law 30.Surface Absorbtivities -Tables 31.Temperature Converter 32.Thermal Area Expansion 33.Thermal Conductivity (Common Liquids) -Tables 34.Thermal Conductivity (Heat Exchanger Materials) 35.Thermal Conductivity Calculator 36.Thermal Conductivity Converter 37.Thermal Diffusivity 38.Thermal Expansion Converter 39.Thermal Linear & Volumetric Expansion Relationship 40.Thermal Linear Expansion 41.Thermal Resistivity 42.Thermal Transmittance 43.Thermal Volumetric Expansion 44.Work Useful for Mechanical Engineers and Students.
WeldOffice
Read full descriptionHide full description
Use WeldOffice mobile app for reliable determination of compliance with welding codes & standards. The app comes with multi-code search features including material classifications for base metals and filler metals, definitions of welding and brazing terms, interpretations, as well as requirements identification based on test type, applicability of welding process and the type of variable. This single WeldOffice mobile app integrates previous individually published P Numbers, M Numbers and F Numbers apps with exclusive access apps addressing multi-code welding requirements. The app includes comprehensive UNS search tool. Multi-code searches include the following Standards Developing Organizations (SDOs): ASME, AWS, API, ISO.... AA, AAR, ABS, ACI, AISI, AMS, AS, AS/NZS, ASTM, CSA, DIN, EN, FED, GB, IRAM, IS, JIS, MIL, MSS, NACE, SAE. INTEGRATED APPS - P-Numbers and M-Numbers apps provide quick lookup of base metal weldability grouping numbers for welding procedure and performance qualification. Data is provided by C-spec from the master source used for generation, proof-reading and maintenance of ASME Section IX Table QW/QB-422, AWS B2.1 Table C1 and C2, and ISO/TR 20173. - F-Numbers app provides quick lookup of filler metal groupings for welding procedure and performance qualification. Lookup includes classifications with respective descriptions of intended use. Data is provided by C-spec. F-numbers and A-numbers assignments are based on ASME Section IX Table QW-432 and QW-442, ASME Section II Part C, AWS B2.1 Table B1 and B2, and AWS A5.1 through AWS A5.36. - A-Numbers app calculator determines the A-Number and the type of weld deposit per ASME Section IX Table QW-442. - UNS app searches materials classified in the SAE Unified Numbering System. - ISO 15608 app searches base metals in ISO/TR 20172, ISO/TR 20173 and ISO/TR 20174. - AWS D1.1 Base metals app searches base metals permitted for use with the AWS D1.1 Structural Steel Code. - Term Definitions app compares API, ASME, AWS and ISO published definitions of welding and brazing terms. - Interpretations app searches API, ASME and AWS published interpretations. - Turbo Code app identifies ASME Section IX code requirements based on applicability of test type, welding process and type of variable (essential, supplementary essential and nonessential).
Screenshots
Verdict
The clearest difference is price: WeldOffice at Free against Thermal Engineering Calc's $2.99. WeldOffice also leads on update cadence (every 3 months vs every 15 months). On ads, 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
WeldOffice is free to download; Thermal Engineering Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Thermal Engineering Calc ships an update every 15 months, WeldOffice every 3 months. The most recent releases landed on August 22, 2026 and September 5, 2026 respectively.
| Parameter | Thermal Engineering Calc | WeldOffice |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.7 (6 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 15 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 3 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | ASMEIX CORPORATION |
In-app purchases
Thermal Engineering Calc
No in-app purchases
WeldOffice
No in-app purchases
Questions
Is Thermal Engineering Calc free?
Is WeldOffice free?
Do Thermal Engineering Calc or WeldOffice have ads?
Which is updated more often, Thermal Engineering Calc or WeldOffice?
Other comparisons















