Sloooow vs PyCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sloooow
This app offers a unique perspective on time by presenting a clock that completes a full rotation in one year. It's designed as a conceptual art piece to encourage reflection on our relationship with time and yearly accomplishments.
- Year-long clock rotation
- Conceptual art piece
- Time relationship exploration
- Reflection on yearly accomplishments
Read full descriptionHide full description
Earth takes 365 days to orbit our Sun. Sloooow™ dial takes one year to complete a rotation. Sloooow™ is a conceptual art piece designed to question our relationship with time and what one can accomplish in a year. Change your relationship with time. Take it Sloooow™
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
Read full descriptionHide full description
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 rating: PyCalc at 5.0 against Sloooow's 3.7. PyCalc also leads on review sentiment (100% vs 60%) and update cadence (every 2 weeks vs every 38 months). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
PyCalc holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: PyCalc has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of Sloooow's written reviews are positive against 100% of PyCalc's.
Sloooow ships an update every 38 months, PyCalc every 2 weeks. The most recent releases landed on October 9, 2026 and September 20, 2026 respectively.
| Parameter | Sloooow | PyCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (15 ratings) — better |
| Positive reviews | 60.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 15 — better |
| Update frequency | Every 38 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 3 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Terry Gillespie | Youreka Tech, LLC |
Customer experience
Sloooow
PyCalc
In-app purchases
Sloooow
No in-app purchases
PyCalc
No in-app purchases









