CO2 Modeller vs Thermodynamics Calculators
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CO2 Modeller
Simulate the impact of reducing carbon emissions on climate change. This app generates projections for atmospheric CO2 concentration, global warming, sea level rise, and ocean acidification.
- Model carbon emission reductions
- Simulate climate change effects
- Project CO2 concentration
- Estimate global warming
- Predict sea level rise
- Analyze ocean acidification
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Model the effect of carbon emissions reductions on climate change using your smartphone or tablet. CO2 Modeller uses a streamlined computationally efficient Earth system model to simulate the effect of carbon emissions reductions on climate change. It generates twenty-first century projections of atmospheric carbon dioxide concentration and global averages of surface warming, sea level rise and ocean acidification.
Thermodynamics Calculators
This app provides engineering professionals with a powerful tool for thermodynamics calculations. It features a comprehensive dataset for various species and a range of building blocks to construct complex models. An illustrative sample model is included for guidance.
- Temperature-dependent property data for 8 species
- Building blocks for model creation
- Daisy-chaining blocks for complex models
- Includes one sample model
- Validated against commercial software
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A calculator designed for engineering professionals in Mechanical and Chemical Engineering industries. Validated against state-of-the-art commercial software. Temperature dependent property data set for 8 species - H2O, H2, N2, O2, CO2, Ar, CO and CH4, for accurate calculations. Building blocks available: Burner, Compressor, Expander, Cooler, Heater, Heat Exchanger, CPOX Reformer, SMR Reformer, Fuel Cells (molten carbonate, PEM and solid-oxide) and Water Dropout. User can daisy-chain these building blocks to create basic models. One illustrative sample model included.
Screenshots
Verdict
The clearest difference is review sentiment: CO2 Modeller at 75% against Thermodynamics Calculators's 0%. CO2 Modeller also leads on in-app purchases (none vs 3) and device support (3 vs 1). Thermodynamics Calculators's advantage is rating (5.0 vs 2.5) and update cadence (weekly vs every 36 months). On price, ratings volume, ads 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
Both are free to download. Thermodynamics Calculators sells 3 one-off in-app purchases. CO2 Modeller asks for nothing beyond the download.
Thermodynamics Calculators holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews complicate that: 75% of CO2 Modeller's written reviews are positive against 0% of Thermodynamics Calculators's, so the app with the better star average is not the one people write more warmly about.
CO2 Modeller ships an update every 36 months, Thermodynamics Calculators weekly. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.
| Parameter | CO2 Modeller | Thermodynamics Calculators |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 36 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 9 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Alex Rogers | Lucy Enterprises |
Customer experience
CO2 Modeller
Thermodynamics Calculators
In-app purchases
CO2 Modeller
No in-app purchases
Thermodynamics Calculators
- Edit option$0.99
- Remove ads$1.99
- Modeling access$4.99
Questions
Is CO2 Modeller free?
Is Thermodynamics Calculators free?
Which has better reviews, CO2 Modeller or Thermodynamics Calculators?
Do CO2 Modeller or Thermodynamics Calculators have ads?
Which is updated more often, CO2 Modeller or Thermodynamics Calculators?
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