Thermodynamics Calculators vs Collatz Explorer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Collatz Explorer
Explore mathematical sequences with this app. It calculates the standard Collatz sequence for any number you enter and can also display sequences from an alternative 3x-1 function.
- Calculate Collatz sequences
- Calculate 3x-1 function sequences
- Input any number
- Visualize sequences
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A fun app that is capable of showing you any collatz sequence for a number that you input. Also capable of showing you any sequence from an alternate 3x-1 function for any number you input.
Screenshots
Verdict
The clearest difference is review sentiment: Collatz Explorer at 100% against Thermodynamics Calculators's 0%. Collatz Explorer also leads on in-app purchases (none vs 3) and ratings volume (7 vs 2). Thermodynamics Calculators's advantage is rating (5.0 vs 4.6) and update cadence (weekly vs monthly). On price, ads, monetization model 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. Thermodynamics Calculators sells 3 one-off in-app purchases. Collatz Explorer asks for nothing beyond the download.
Thermodynamics Calculators holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews complicate that: 0% of Thermodynamics Calculators's written reviews are positive against 100% of Collatz Explorer's, so the app with the better star average is not the one people write more warmly about.
Thermodynamics Calculators ships an update weekly, Collatz Explorer monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Thermodynamics Calculators | Collatz Explorer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.6 (7 ratings) |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 7 — better |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 16.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Lucy Enterprises | Berk Sucu |
Customer experience
Thermodynamics Calculators
Collatz Explorer
In-app purchases
Thermodynamics Calculators
- Edit option$0.99
- Remove ads$1.99
- Modeling access$4.99
Collatz Explorer
No in-app purchases
Questions
Is Thermodynamics Calculators free?
Is Collatz Explorer free?
Which has better reviews, Thermodynamics Calculators or Collatz Explorer?
Do Thermodynamics Calculators or Collatz Explorer have ads?
Which is updated more often, Thermodynamics Calculators or Collatz Explorer?
Other comparisons
