StemFox Scientific Calculator vs PyCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StemFox Scientific Calculator
Streamline complex STEM calculations with a powerful calculator, textbook equation solver, and comprehensive unit converter. Designed for engineers, it reduces busywork and improves accuracy for homework and technical tasks.
- Advanced scientific calculator with 80+ functions
- Textbook equation solver for any variable
- Searchable equation database by chapter
- Fast table lookup with linear interpolation
- Comprehensive unit converter with 300+ conversions
- Copy and paste functionality for values and equations
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Become a better engineer! Stop wasting your time on pointless busy work! Complete your calculations more quickly and accurately. Designed by an engineer, for engineers, StemFox has all the tools you need: Calculator STEM homework is technical and demanding. Accordingly, StemFox includes a calculator able to handle the most complex equations. From trigonometry to Bessel functions, StemFox has you covered! ・More than 80 mathematical functions. ・Quick reference to common basic scientific functions and operators. ・Quickly and easily copy and paste values. ・Quickly reference calculations in all parts of the app. ・Reference previous calculations via the ans(x) method. ・Prettyprint formatting of calculations. Textbook Companions Homework is an important portion of education. Entering equations into your calculator is not. Yet, this tedious error prone activity takes up a significant portion of homework time. Enter StemFox Textbook Companions. Textbook Companions contain references to a textbook’s equations and tables. Equations: ・Equations are referenced by number and name/description. ・Equations are searchable and divided into chapters for quick reference. ・Equations are solvable for any variable. Enter the known variables, and solve for the unknown one. ・Avoid error prone calculator entry. ・Avoid the errors and tedium of entering variables multiple times in the same equation. ・Decreases calculation time by as much as 90% over entering the entire formula yourself! Tables: ・Quickly lookup table values. ・Fast, easy, accurate, table linear interpolation. ・Copy and paste values with a simple tap, no transcription errors! Yay! Unit Converter Unit conversion is a common STEM activity. To speed up this irritating activity, StemFox offers the most comprehensive scientific unit converter available! ・More than two dozen separate units and nearly 300 individual conversions available. ・Tap to copy, tap to paste. Terms of Use: http://stemfox.io/index.php/eula/ Privacy Policy: http://stemfox.io/index.php/privacy-policy/
PyCalc
This app offers a revolutionary approach to mobile calculations, allowing users to view and edit entire equations at once. It leverages the power of Python 3.11.1 for advanced functions, symbolic math, and financial analysis, making complex computations accessible on the go.
- Real-time editable calculation view
- Python 3.11.1 interpreter
- Programmable scientific calculator
- Support for matrices and fractions
- Built-in Python packages (math, sympy)
- Financial analysis functions
- Symbolic math capabilities
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What most people love first about PyCalc is that they can see and edit their entire calculation all at once. It's a simple idea but it makes a huge difference in the kinds of calculations people end up doing on mobile. But that just scratches the surface of PyCalc's features and capabilities. The more you learn, the more you'll see how easy it is to do calculations that were always too hard before on mobile. Jump in and learn a truly better way of calculating. Basic features: ● A new and better approach to mobile calculation ● A cleaner interface for complicated calculations than traditional calculators ● Calculate by voice ● A history list keeps track of your previous calculations ● Functions built in for a huge range of applications ● Multiple keyboards optimized for different use cases Advanced features: ● Based on the Python® language, with access to the power of a full Python 3.11.1 interpreter ● Programmable scientific calculator: An editable startup.py script allows you to define your own functions for easy access later ● Streamlined support for matrices and fractions ● Many standard Python packages, such as: math, statistics, random, sympy, mpmath, fractions, decimal and datetime ● Basic financial analysis functions: pv(), fv(), npv(), pmt(), etc. ● Built-in support for complex numbers ● Symbolic math via the sympy package ● http/https queries via requests package ● Much, much more... "Python" and the Python Logo are trademarks or registered trademarks of the Python Software Foundation, used by the PyCalc project with permission from the Foundation.
Screenshots
Verdict
The clearest difference is in-app purchases: PyCalc at none against StemFox Scientific Calculator's 6. PyCalc also leads on update cadence (every 2 weeks vs every 3 months) and review sentiment (100% vs 90%). StemFox Scientific Calculator's advantage is iOS requirement (15 vs 18.0). On price, rating, ratings volume and ads 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. StemFox Scientific Calculator sells 6 in-app purchases, starting at $2.99 per month. PyCalc asks for nothing beyond the download.
PyCalc holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 11 and 18 respectively. Written reviews point the same way: 90% of StemFox Scientific Calculator's written reviews are positive against 100% of PyCalc's.
StemFox Scientific Calculator ships an update every 3 months, PyCalc every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | StemFox Scientific Calculator | PyCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (11 ratings) | 5.0 (18 ratings) — better |
| Positive reviews | 90.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 11 | 18 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15 — better | 18.0 |
| Further details — not scored | ||
| Size | 24 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Bryson | Youreka Tech, LLC |
Customer experience
StemFox Scientific Calculator
PyCalc
In-app purchases
StemFox Scientific Calculator
- Monthly - Unlimited7 Days trial$2.991 Month
- Yearly - Unlimited7 Days trial$9.991 Year
- Donut$0.99
- Drink$2.99
- Taco$4.99
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- Pizza$9.99
PyCalc
No in-app purchases
Questions
Is StemFox Scientific Calculator free?
Is PyCalc free?
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